Attachment 364 Details for Bug 622 – Log from configuring

Log from configuring

config.log (text/plain), 79.68 KB, created by Piotr Szumny on 2003-07-30 01:39:33 AEST

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Creator: Piotr Szumny

Created: 2003-07-30 01:39:33 AEST

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patch

obsolete

>This file contains any messages produced by compilers while
>running configure, to aid debugging if configure makes a mistake.
>
>It was created by configure, which was
>generated by GNU Autoconf 2.57.  Invocation command line was
>
>  $ ./configure --sysconfdir=/etc/ssh --with-cflags=-qmaxmem=-1 --with-xauth=/usr/bin/X11/xauth --with-prngd-socket=/dev/egd-pool --with-ipv4-default --with-pid-dir=/var/tmp
>
>## --------- ##
>## Platform. ##
>## --------- ##
>
>hostname = kdc01
>uname -m = 005582CA4C00
>uname -r = 3
>uname -s = AIX
>uname -v = 4
>
>/usr/bin/uname -p = unknown
>/bin/uname -X     = unknown
>
>/bin/arch              = unknown
>/usr/bin/arch -k       = unknown
>/usr/convex/getsysinfo = unknown
>hostinfo               = unknown
>/bin/machine           = unknown
>/usr/bin/oslevel       = 4.3.3.0
>/bin/universe          = unknown
>
>PATH: /usr/bin
>PATH: /etc
>PATH: /usr/sbin
>PATH: /usr/ucb
>PATH: /usr/bin/X11
>PATH: /sbin
>PATH: ./
>PATH: /usr/ibmcxx/bin
>PATH: /usr/lpp/vgwgs40/bin
>PATH: /usr/lpp/db2_06_01/lib
>PATH: /home/db2inst2/sqllib/bin
>PATH: /home/db2inst2/sqllib/adm
>PATH: /home/db2inst2/sqllib/misc
>PATH: /usr/lpp/cobol/bin
>PATH: /var/ifor
>PATH: /usr/opt/ifor/ls/conf
>PATH: /usr/local/bin
>
>
>## ----------- ##
>## Core tests. ##
>## ----------- ##
>
>configure:1362: checking for gcc
>configure:1391: result: no
>configure:1442: checking for cc
>configure:1458: found /usr/ibmcxx/bin/cc
>configure:1468: result: cc
>configure:1632: checking for C compiler version
>configure:1635: cc --version </dev/null >&5
>cc: 1501-216 command option -version is not recognized - passed to ld
>  IBM C and C++ Compilers
>
>  Usage:
>     xlC [ option | inputfile ]...
>     xlc [ option | inputfile ]...
>     cc [ option | inputfile ]...
>     c89 [ option | inputfile ]...
>     xlC128 [ option | inputfile ]...
>     xlc128 [ option | inputfile ]...
>     cc128 [ option | inputfile ]...
>     xlC_r [ option | inputfile ]...
>     xlc_r [ option | inputfile ]...
>     cc_r [ option | inputfile ]...
>     xlC_r4 [ option | inputfile ]...
>     xlc_r4 [ option | inputfile ]...
>     cc_r4 [ option | inputfile ]...
>     CC_r4 [ option | inputfile ]...
>     xlC_r7 [ option | inputfile ]...
>     xlc_r7 [ option | inputfile ]...
>     cc_r7 [ option | inputfile ]...
>
>  Description:
>     The xlC and related commands compile C and C++ source files.
>     They also processes assembler source files and object files. Unless the
>     -c option is specified, xlC calls the linkage editor to produce a
>     single object file. Input files may be any of the following:
>       1. file name with .C suffix: C++ source file
>       2. file name with .i suffix: preprocessed C or C++ source file
>       3. file name with .c suffix: C source file
>       4. file name with .o suffix: object file for ld command
>       5. file name with .s suffix: assembler source file
>       6. file name with .so suffix: shared object file
>
>  Options:
>     Options can be flag options or keyword options:
>
>       1. Flag options:
>
>        -#        Display language processing commands but do
>                  not invoke them; output goes to stdout.
>        -+        Treat .c files as C++ source code.
>        -bdynamic, -bstatic
>                  Determines which types of library files are searched by
>                  the linkage editor.
>        -brtl     Tells the linkage editor to accept both .so and .a
>                  library file types.
>        -B<prefix>
>                  Construct alternate compiler/assembler/linkage editor
>                  program names. <prefix> is added to the beginning of
>                  the standard program names.
>        -c        Do not send object files to the linkage editor.
>        -C        Write comments to output when doing preprocessing,
>                  used with -E and -P.
>        -D<name>[=<def>]
>                  Define <name> as in #define directive. If <def> is
>                  not specified, 1 is assumed.
>        -E        Preprocess but do not compile; output goes to stdout
>        -F<x>[:<stanza>]
>                  Use alternate configuration file <x> with optional
>                  <stanza>. If <stanza> is not specified, xlC is
>                  assumed.
>        -g        Produce information for the debugger.
>        -I<dir>   Search in directory <dir> for include files that
>                  do not start with an absolute path.
>        -l<key>   Search the specified library file,
>                  where <key> selects the file lib<key>.a.
>        -L<dir>   Search in directory <dir> for files specified by -l<key>.
>        -ma       Generate inline calls to the "alloca" function as if
>                  "#pragma alloca" directives were in the source file.
>        -M        Generate information to be included in a "make"
>                  description file; output goes to .u file.
>        -o<name>  Name the executable file <name> instead of a.out.
>                  When used with the -c option and one source file,
>                  name the object file <name> instead of filename.o.
>                  If <name> is the name of a directory, files generated by
>                  the compiler will be placed into that directory.
>        -O        Optimize generated code.
>        -O2       Equivalent level of optimization as -O in the
>                  previous release.
>        -O3       Perform some memory and compile time intensive
>                  optimizations in addition to those executed with -O2.
>                  The -O3 specific optimizations have the potential to
>                  alter the semantics of a user's program.
>                  The compiler guards against these optimizations at -O2
>                  and the option -qstrict is provided at -O3 to turn off
>                  these aggressive optimizations.
>        -O4       (C) Equivalent to -O3 -qipa with automatic generation of 
>                  architecture and tuning option ideal for that platform.
>        -p        Generate profiling support code.
>        -pg       Generate profiling support code including BSD
>                  profiling support.
>        -P        Preprocess but do not compile; output goes to .i file.
>        -Q        (C++) Turns on inlining. 
>        -Q!       (C++) Turns off inlining.
>        -Q<x>, -qinline<x>     
>                  (C) Inline all appropriate functions where x can be
>                  one of the following:
>                    !       Not inline any function
>                    =<lc>   Inline if number of source statement in
>                            function is less than the number specified
>                            in <lc>.
>                    -<nm>   Not inline function listed by names in <nm>
>                    +<nm>   Attempt to inline function listed by names
>                            in <nm>.
>        -r        Permits the output file to be produced even if it
>                  contains unresolved symbols.
>        -S        Produce a .s file for any source file processed by the
>                  compiler.
>        -t<x>     Apply prefix from the -B option to the specified program <x>,
>                  where x can be one or more of the following:
>                    p = preprocessor
>                    c = compiler frontend
>                    b = compiler backend
>                    i = compiler inliner
>                    a = assembler
>                    l = linkage editor.
>                    m = 'munch' utility
>                    f = C++ name demangler utility
>                    I = inter procedural analysis compile phase
>                    L = inter procedural analysis link phase
>        -U<name>  Undefine name as in #undef directive.
>        -v        Displays language processing commands as they
>                  are invoked by xlC; output goes to stdout.
>        -w        Suppress informational, language-level, and
>                  warning messages.
>        -W<x,y>   Give the options <y> to the compiler program <x>
>                  where x can be one or more of the following:
>                    <p,c,b,i,a,l,I,m,f>
>        -y<x>     Specify compile-time rounding of constant floating-point
>                  expressions, where <x> can be one of the following:
>                    n = round to nearest
>                    m = round toward minus infinity
>                    p = round toward positive infinity
>                    z = round toward zero.
>
>       2. Keyword options:
>
>          Keyword options are specified in one of the following ways:
>
>          -q<option>
>          -q<option>=<parameter>
>          -q<option>=<parameter>:<parameter>
>
>          where <option> is an option name and <parameter> is a
>          parameter value.
>          Keyword options with no parameters represent switches
>          that may be either on or off. The keyword by itself turns
>          the switch on, and the keyword preceded by the letters NO
>          turns the switch off. For example, -qLIST tells the
>          compiler to produce a listing and -qNOLIST tells the
>          compiler not to produce a listing. If an option that
>          represents a switch is set more than once, the compiler
>          uses the last setting.
>
>          Keyword option and parameter names may appear in either
>          UPPER CASE or lower case letters in the xlC command.
>
>
>          Options without parameters:
>
>          32          Selects 32-bit compiler mode.
>          64          Selects 64-bit compiler mode.
>          ansialias   Use type-based aliasing during optimization.
>          attr        Produce an attribute listing containing only
>                      referenced names; output goes to .lst file.
>          compact     Reduce code size where possible, at the expense
>                      of execution speed.  Code size is reduced by
>                      inhibiting optimizations that replicate or expand
>                      code inline.
>          cpluscmt    (C) Permit "//" to introduce a comment that lasts
>                      until the end of the current source line, as in C++.
>          dbcs        String literals and comments can contain DBCS
>                      characters (same as mbcs option).
>          dbxextra    Generate symbol table information for unreferenced
>                      variables. By default such information is not generated
>                      thus reducing the size of the executable compiled with
>                      the "-g" option.
>          digraph     Allow special digraph
>          dollar      Allow '$' as an identifier character
>          extchk      Perform external name type-checking and function
>                      call checking.
>          fdpr        Collect information about programs for use with
>                      the AIX fdpr (Feedback Directed Program Restructuring)
>                      performance-tuning utility.
>          funcsect    Place instructions for each function in a separate csect.
>          flttrap     Generate instructions to trap floating-point
>                      exceptions.
>          fold        Specifies that constant floating-point expressions
>                      are to be evaluated at compile time.
>          fullpath    Specifies the path information stored for files when
>                      you use "-g" and the symbolic debugger (dbx).
>          heapdebug   Enables debug versions of memory management functions.
>          idirfirst   Specify the search order for files included with
>                      the #include "file_name" directive.  Use -qidirfist
>                      with the -Idirectory option.  If -qidirfirst option
>                      is specified, the directories specified by the
>                      -Idirectory option are searched before the directory
>                      where the current file resides.
>          ignerrno    Tell the optimizer that the program will never
>                      refer to or set errno.  This allows additional
>                      optimizations.
>          inlglue     Generate fast external linkage by inlining the
>                      code (pointer glue code) necessary at calls
>                      via a function pointer and calls to external
>                      procedures.
>          ldbl128     Increase long double size from 64 to 128 bits.
>          libansi     Assumes that all functions with the names of an
>                      ANSI C library functions are in fact the system functions.
>          linedebug   Generates abbreviated line number and source file name
>                      information for the debugger. 
>          list        Produce an object listing; output goes to .lst file.
>          listopt     Display the settings of all options; output goes
>                      to .lst file.
>          longdouble  Increase long double size from 64 to 128 bits.
>          longlong    Allow long long integers.
>          macpstr     Allow '\p' as the first character of a string constant
>                      which will be replaced by the length in bytes.
>          makedep     Creates an output file that contains targets suitable for
>                      inclusion in a description file for the AIX make command.
>          mbcs        String literals and comments can contain DBCS
>                      characters (same as dbcs option).
>          noprint     Direct listing to /dev/null.
>          nostdinc    Specify which files are included with the #include
>                      "file_name" and #include <file_name> directives.
>                      If -qnostdinc is specified, the /usr/include (C) or
>                      /usr/ibmcxx/include & /usr/include (C++) directories 
>		      are not searched.
>          once        Only process each include file one time.
>                      The default is -qnoonce.
>          optimize    Same as O, and O2. Perform optimization that is the
>                      mix between speed and size.
>          pascal      Accept and ignore the keyword 'pascal' as a
>                      type modifier.
>          pdf1, pdf2  Perform aggressive optimizations with profile
>                      directed feedback.
>          phsinfo     Produce compiler phase information; output goes to
>                      stdout.
>          proto       (C) Assert that procedure call points agree
>                      with their declarations even if the procedure has
>                      not been prototyped. This allows the caller to
>                      pass floating point arguments in floating point
>                      registers instead of general purpose registers.
>          ro          Put string literals in read only area.
>          roconst     Put constant values in read only area.
>          rwvftable   (C++) Place virtual function tables into
>                      read/write memory.
>          showinc     Include the source of all included files in the
>                      source listing, if the SOURCE option is in effect.
>          source      Produce a source listing; output goes to .lst file.
>          srcmsg      Reconstruct source lines in error along with the
>                      diagnostic messages in the stderr file.
>          statsym     Adds user-defined, nonexternal names that have a
>                      persistent storage class, such as initialized and
>                      uninitialized static variables, to the name list
>                      (the symbol table of xcoff objects).
>          strict      Valid only at -O3.  This option turns off aggresive
>                      optimizations which have the potential to alter the
>                      semantics of a user's program. This option also sets
>                      -qfloat=nofltint:norsqrt.
>          strict_induc This option turns off induction variable optimizations 
>                      that have the potential to alter the semantics of a
>                      user's program. The default is "nostrict_induc" at
>                      -O3 and higher and "strict_induc" otherwise. "nostrict_induc" 
>                      is recomended if your program does not have overflows or
>                      wrap arounds of loop induction variables.
>          tempinc     Automatically generate template functions in the
>                     "tempinc" subdirectory. Use the "notempinc" option to
>                      suppress this behaviour.
>          twolink     (C++) Link twice in order to minimize the number
>                      of static constructors included from libraries (default
>                      with langlvl=compat).
>          unique      (C++) Generates unique names for static 
>                      constructor/destructor file compilation units.
>          syntaxonly  Causes the compiler to perform syntax checking without
>                      generating an object file.
>          upconv      (C) Preserves the unsigned specification when performing
>                      integral promotions.
>          vftable     (C++) Force virtual function tables to be generated
>                      in this compilation unit.  The default is to define the
>                      virtual function table for a class where the first
>                      non-inline virtual member function is declared.  If
>                      -qnovftable is specified, then no virtual function tables
>                      are produced.
>          warn64      Enables checking for possible long-to-integer or
>		      pointer-to-int truncation.
>          xcall       Generate code to static routines within a compilation
>                      unit as if they were external routines.
>          xref        Produce a cross-reference listing containing
>                      only referenced names.
>
>
>          Options with parameters:
>
>          alias=<option>
>                      Specifies the aliasing assertion to be applied to
>                      your compilation unit.
>                      The available options are:
>                      typ     Pointers to different types are never aliased.
>                      allp    Pointers are never aliased.
>                      addr    Variables are disjoint from pointers
>                              unless their address is taken.
>                      ansi    Pointers can only point to an object of the
>                              same type. Require -O option.
>          align=<algnopt>
>                      power   The compiler uses the RISC System/6000 
>                              alignment rules.
>                      full    The compiler uses the RISC System/6000 
>                              alignment rules. This is the same as power.
>                      mac68k  The compiler uses the Macintosh**
>                              alignment rules.
>                      twobyte The compiler uses the Macintosh alignment rules. 
>                              The mac68k option is the same as twobyte.
>                      packed  The compiler uses the packed alignment rules.
>                      natural The compiler maps structure members to
>                              their natural boundaries. 
>          arch=<option>
>                      Specifies the architecture on which the executable
>                      program will be run.
>                      The available options are:
>                      com     Produce an object that contains instructions
>                              that will run on all the POWER and PowerPC
>                              hardware platforms.
>                      pwr     Produce an object that contains instructions
>                              that will run on the POWER hardware
>                              platform.
>                      pwr2    Produce an object that contains instructions
>                              that will run on the POWER2 hardware
>                              platform.
>                      pwrx    Same as pwr2.
>                      ppc     Produce an object that contains instructions
>                              that will run on any of the 32-bit PowerPC
>                              hardware platforms.
>                      ppcgr   Produce an object that contains optional
>                              graphics instructions for PowerPC processors.
>                      pwr2s   Produce an object that contains instructions
>                              that will run on a pwr2s chip.
>                      p2sc    Produce an object that contains instructions
>                              that will run on a p2sc chip.
>                      601     Produce an object that contains instructions
>                              that will run on a 601 chip.
>                      602     Produce an object that contains instructions
>                              that will run on a 602 chip.
>                      603     Produce an object that contains instructions
>                              that will run on a 603 chip.
>                      604     Produce an object that contains instructions
>                              that will run on a 604 chip.
>                      403     Produce an object that contains instructions
>                              that will run on a 403 chip.
>                      rs64a   Produce an object that contains instructions
>                              that will run on a rs64a chip.
>                      The default is -qarch=com.  If the -qarch option is
>                      specified without the -qtune=<option>, the compiler
>                      uses -qtune=pwr.
>          assert=<option>
>                      Specifies the aliasing assertion to be applied to
>                      your compilation unit.
>                      The available options are:
>                      typ     Pointers to different types are never aliased.
>                      allp    Pointers are never aliased.
>                      addr    Variables are disjoint from pointers
>                              unless their address is taken.
>          attr=full   
>		      Produce an attribute listing containing all names,
>                      whether referenced or not; output goes to .lst file.
>          bitfields=signed
>          bitfields=unsigned
>                      Specify whether bitfields will be signed or unsigned.
>          chars=signed
>          chars=unsigned
>                      Specify whether the data type char will be signed
>                      or unsigned.
>          check=<option>       
>                      Generate code to check for run-time checks.
>                      nullptr  Runtime checking of addresses
>                               contained in pointer variables used to
>                               reference storage.
>                      bounds   Runtime checking of addresses when
>                               subscripting within an object of known size.
>                      divzero  Runtime checking of integer division.
>                               A trap will occur if an attempt is made to
>                               divide by zero.
>                      all      Switches on all the above suboptions.
>          cinc=<prefix>
>                      (C++) Include files from directories starting with
>		      <prefix> have the tokens 'extern "C" {' inserted 
>		      before the file and '}' after it.
>          datalocal=<name1>:<name2>: ...
>                      Specify which data items are local.  If no names are
>                      specified, all data items are assumed to be local.
>          dataimported=<name1>:<name2>: ...
>                      Specify which data items are imported.  If no names are
>                      specified, all data items are assumed to be imported.
>                      This is the default.
>          enum=<enumopt>
>                      Specify whether minimum-sized enumerated types will be
>                      produced or not. <enumopt> can be either small, int,
>                      (C++)intlong, 1, 2, 4 or 8. 
>                      small denotes that either one, two or four bytes of
>                            storage will be allocated for enum variables 
>                            based on the range of the enum constants.
>                      int is the default, and causes enum variables to be
>                            treated as though they were of type signed int
>                            depending on the range of the enum constants. 
>                            depending on the range of the enum constants. 
>                      intlong (C++) specifies that enumerations occupy 8 
>                            bytes of storage and are represented by long,
>                            if -q64 is specified and the range of the
>                            enum constants exceed the limit for int. 
>                      1 will cause enum variables to be packed into 1 byte.
>                      2 will cause enum variables to be packed into 2 bytes.
>                      4 will cause enum variables to be packed into 4 bytes.
>                      8 will cause enum variables to be packed into 8 bytes.
>          flag=<sev1>
>                      Specify severity level of diagnostics to be reported
>                      in source listing and stderr; the severity level
>                      is one of <i,w,e,s,u>.
>          flag=<sev1>:<sev2>
>                      Specify severity level of diagnostics to be reported
>                      in source listing (<sev1>), and stderr (<sev2>);
>                      the severity levels are one of <i,w,e,s,u>.
>          float=<opt1>:<opt2>:...:<optN>
>                      The available options are:
>                      emulate  Function calls are emitted in place of
>                               PowerPC floating-point instructions.
>                               Use this option only in a single-threaded
>                               stand-alone environment, targeting the
>                               PowerPC 403 processor.
>                               Do not use this suboption with any of the
>                               following:
>                               o  -qarch=pwr, -qarch=pwr2, -qarch=pwrx
>                               o  -qlongdouble, -qldbl128
>                               o  xlC128, xlc128 invocation commands
>                      fltint   Specify whether range checking of floating
>                               point to integer conversions is done.
>                               Default at -O2: -qfloat=nofltint.
>                               Default at -O3: -qfloat=fltint.
>                      hsflt    Never round single-precision expressions,
>                               and don't perform range checking for
>                               floating-point to integer conversions.
>                      hssngl   Round single-precision expressions only
>                               when the results are stored into REAL*4 memory
>                               locations.
>                      nans     Detect conversion of single-precision NaNS to
>                               double precision call checking.
>                      nomaf    Suppress generation of multiply-add
>                               instructions.
>                      nofold   Suppress compile-time evaluation of constant
>                               floating-point expressions.
>                      rndsngl  Ensure strict adherence to IEEE standard.
>                               all operations on single-precision values
>                               produce results that remain in single
>                               precision.
>                      rrm      Specify run-time rounding mode. Compile with
>                               this option if the run-time rounding mode
>                               is round toward minus infinity, round toward
>                               positive infinity, or not known.
>                      rsqrt    Specify whether a division by the result of a
>                               square root can be replaced with a multiply
>                               by the reciprocal of the square root.
>                               Default at -O2: -qfloat=norsqrt.
>                               Default at -O3: -qfloat=rsqrt.
>                      spnans   Generate extra instructions to detect signalling
>                               NaN on conversion from single precision to
>                               double precision.  Obsolete; use the equivalent
>                               -qfloat=nans option.
>          flttrap=<opt1>:<opt2>:...:<optN>
>                      Generate instructions to detect and trap floating-point.
>                      The available options are:  overflow, underflow,
>                      zerodivide, invalid, inexact, enable, imprecise.
>          halt=<sev>  
>		      Stop compiler after first phase if severity of errors
>                      detected equals or exceeds <sev>; the severity
>                      level is one of i, w, e, s, u.
>          genpcomp[=dirname]
>                      Generate precompiled include files.  See IBM C and C++ 
>        	      Compilers User's Guide for details.
>          genproto=<parmnames>
>                      Produces ANSI prototypes from K&R function definitions.
>          ignprag=disjoint
>          ignprag=isolated
>          ignprag=all
>                      Ignore the aliasing pragmas disjoint and/or
>                      isolated_call.
>          info
>          info=all
>                      Produce additional lint-like messages. Turns on all 
>                      diagnostic messages for all groups.
>          info=<group>
>                      Produce additional lint-like messages based on <group>.
>                      cmp      Possible redundancies in unsigned comparisons
>                      cnd      Possible redundancies or problems in conditional
>                               expressions
>                      cns      Operations involving constants.
>                      cnv      Conversions
>                      dcl      Consistency of declarations
>                      eff      Statements with no effect
>                      enu      Consistency of enum variables
>                      ext      Unused external definitions
>                      gen      General diagnostic messages
>                      gnr      Generation of temporary variables
>                      got      Use of goto statements
>                      ini      Possible problems with initialization
>                      inl      Functions not inlined
>                      lan      Language level effects
>                      obs      Obsolete features
>                      ord      Unspecified order of evaluation
>                      par      Unused parameters
>                      por      Nonportable language constructs
>                      ppc      Possible problems with using the preprocessor
>                      ppt      Trace of preprocessor actions
>                      pro      Missing function prototypes
>                      rea      Code that cannot be reached
>                      ret      Consistency of return statements
>                      trd      Possible truncation or loss of data or precision
>                      tru      Variable names truncated by the compiler
>                      uni      Unitialized variables
>                      use      Unused auto and static variables
>                      vft      (C++) Generation of virtual function tables
>          initauto=<hh>
>                      Initialialize automatic storage to <hh>. <hh> is a
>                      hexadecimal value.  This generates extra code and
>                      should only be used for error determination.
>          inline[=<x>]
>		      This is functionally equivalent to the -Q option.
>          ipa[=<ipa_options>]
>                      (C) Turn on inter-procedural analysis.  See IBM C and C++ 
>		      Compilers User's Guide for details.
>          isolated_call=<name1>:<name2>: ...
>                      Specify that the calls to the functions listed have no
>                      side effects. <name1> and <name2> are function names.
>                      The user may specify as many function names as
>                      necessary.
>          langlvl=<langlvl>
>                      Specify language level to be used during compilation.
>                      <langlvl> can be ansi, saal2, saa, extended, or classic.
>          maxerr=<num>[:<sev>]
>		      Instructs the compiler to halt compilation when <num>
>                      errors of <sev> or greater severity is reached.  The
>		      default for <sev> is current value of the -qhalt option.
>          maxmem=<num>
>                      Limit the amount of memory used by space intensive
>                      optimizations to <num>.  <num> specified in kilobytes.
>                      prioriry=NNN
>          priority=<num>
>                      (C++) Specifies the priority level for the initialization
>                      of static constructors.
>          optimize
>                      Same as -O. Optimize generated code using the best
>                      best combination for speed and size.
>          optimize=<level>
>                      Enables different levels of optimization.
>                      2       Same as -O and -qoptimize.
>                      3       Same as -O3. Aggresive optimization.
>                      4       (C) Same as -O4. Internally generates -O3 -qipa 
>                              with with automatic architecture and tuning option
>                              generation.
>          proclocal=<name1>:<name2>: ...
>                      Specify which functions are local.
>                      If no filenames are specified, all invoked functions
>                      are assumed to be defined whithin the current file.
>                      The last explicit specification for a function takes
>                      precedence.
>          procimported=<name1>:<name2>: ...
>                      Specify which functions are imported.  If no filenames
>                      are specified, all invoked functions are assumed to be
>                      defined outside the current file.  The last explicit
>                      specification for a function takes precedence.
>          procunknown=<name1>:<name2>: ...
>                      Specify which functions are unknown to be local or
>                      imported.  If no filenames are specified, all functions
>                      called are assumed to be unknown. This is the default
>                      when no user options are specified. The last explicit
>                      specification for a function takes precedence.
>          rtti=<option>
>                      (C++) Use this option to generate run-time type 
>                      identification (RTTI) information for the typeid 
>                      operator and the dynamic_cast operator. 
>                      all             The compiler generates the  
>                                      information needed for the RTTI typeid 
>                                      and dynamic_cast operators.
>                      type | typeinfo The compiler generates the information 
>                                      needed for the RTTI typeid operator, 
>                                      but the information needed for
>                                      dynamic_cast operator is not generated. 
>                      dyna | dynamiccast
>                                      The compiler generates the information 
>                                      needed for the RTTI dynamic_cast 
>                                      operator, but the information needed for
>                                      typeid operator is not generated. 
>          spill=<size>
>                      Specify the size of the register allocation spill
>                      area.
>          tabsize=<size>
>                      Changes the length of tabs in your source file.
>          tbtable=<option>
>                      Generate a traceback table for each function and
>                      place it in the text segment at the end of the
>                      function code.
>                      The available options are:
>                      none    No traceback table is generated.
>                      full    A full traceback table is generated.
>                              This is the default with -g specified.
>                      small   A traceback table is generated with no name or
>                              parameter information.
>                              This is the default when -g is NOT specified.
>          tune=<option>
>                      Specifies the architecture system for which the
>                      executable program is optimized.
>                      The available options are:
>                      403    Produce an object optimized for all the
>                             PowerPC 403 processors.
>                             Use -qfloat=emulate to emulate the floating-point
>                             instructions omitted by the 403 processor.
>                      601    Produce an object optimized for all the
>                             PowerPC 601 processors.
>                      602    Produce an object optimized for all the
>                             PowerPC 602 processors.
>                      603    Produce an object optimized for all the
>                             PowerPC 603 processors.
>                      604    Produce an object optimized for all the
>                             PowerPC 604 processors.
>                      p2sc   Produce an object optimized for all the
>                             p2sc processors.
>                      pwr    Produce an object optimized for the POWER
>                             hardware platform.
>                      pwr2   Produce an object optimized for the
>                             POWER2 hardware platform.
>                      pwr2s  Produce an object optimized for the
>                             POWER2 hardware platform, avoiding certain
>                             quadruple-precision instructions that would
>                             slow program performance.
>                      pwrx   Same as pwr2.
>                      rs64a  Produce an object optimized for all the
>                             rs64a processors.
>          tempinc[=<directory>]
>                      (C++) Automatically generate template functions in the
>                      specified directory. Use the "notempinc" option
>                      to suppress this behaviour.
>          tempmax=<number>
>                      (C++) Specify the maximum number of files to be created 
>		      in the tempinc directory for each template file.  The
>                      default is 1.
>          unroll[=n]  
>		      Allow the optimizer to unroll loops.
>          usepcomp[=dirname]
>                      Use precompiled include files.  See IBM C and C++ 
>		      Compilers User's Guide for details.
>          wait[=<seconds>]
>                      Specify the number of seconds to wait for a LUM
>                      license to become available.  The default is to wait
>                      forever.
>          xref=full   
>		      Produce a cross-reference listing containing
>                      all names, whether referenced or not; output goes
>                      to .lst file.
>
>  Environment Variables
>     1.OBJECT_MODE changes the compilation-mode behavior, unless overridden by
>                   configuration file or command-line options
>
>        Setting
>
>         not set   32-bit compiler mode.
>          32       32-bit compiler mode.
>          64       64-bit compiler mode.
>         32_64     Fatal error and stop, unless an explicit configuration 
>                   file or command-line compiler-mode setting exists.
>        any other  Fatal error and stop, unless an explicit configuration 
>                   file or command-line compiler-mode setting exists.
>
>  For a detailed description of each option, please refer to the
>  IBM C and C++ Compilers User's Guide.
>
>configure:1638: $? = 249
>configure:1640: cc -v </dev/null >&5
>  IBM C and C++ Compilers
>
>  Usage:
>     xlC [ option | inputfile ]...
>     xlc [ option | inputfile ]...
>     cc [ option | inputfile ]...
>     c89 [ option | inputfile ]...
>     xlC128 [ option | inputfile ]...
>     xlc128 [ option | inputfile ]...
>     cc128 [ option | inputfile ]...
>     xlC_r [ option | inputfile ]...
>     xlc_r [ option | inputfile ]...
>     cc_r [ option | inputfile ]...
>     xlC_r4 [ option | inputfile ]...
>     xlc_r4 [ option | inputfile ]...
>     cc_r4 [ option | inputfile ]...
>     CC_r4 [ option | inputfile ]...
>     xlC_r7 [ option | inputfile ]...
>     xlc_r7 [ option | inputfile ]...
>     cc_r7 [ option | inputfile ]...
>
>  Description:
>     The xlC and related commands compile C and C++ source files.
>     They also processes assembler source files and object files. Unless the
>     -c option is specified, xlC calls the linkage editor to produce a
>     single object file. Input files may be any of the following:
>       1. file name with .C suffix: C++ source file
>       2. file name with .i suffix: preprocessed C or C++ source file
>       3. file name with .c suffix: C source file
>       4. file name with .o suffix: object file for ld command
>       5. file name with .s suffix: assembler source file
>       6. file name with .so suffix: shared object file
>
>  Options:
>     Options can be flag options or keyword options:
>
>       1. Flag options:
>
>        -#        Display language processing commands but do
>                  not invoke them; output goes to stdout.
>        -+        Treat .c files as C++ source code.
>        -bdynamic, -bstatic
>                  Determines which types of library files are searched by
>                  the linkage editor.
>        -brtl     Tells the linkage editor to accept both .so and .a
>                  library file types.
>        -B<prefix>
>                  Construct alternate compiler/assembler/linkage editor
>                  program names. <prefix> is added to the beginning of
>                  the standard program names.
>        -c        Do not send object files to the linkage editor.
>        -C        Write comments to output when doing preprocessing,
>                  used with -E and -P.
>        -D<name>[=<def>]
>                  Define <name> as in #define directive. If <def> is
>                  not specified, 1 is assumed.
>        -E        Preprocess but do not compile; output goes to stdout
>        -F<x>[:<stanza>]
>                  Use alternate configuration file <x> with optional
>                  <stanza>. If <stanza> is not specified, xlC is
>                  assumed.
>        -g        Produce information for the debugger.
>        -I<dir>   Search in directory <dir> for include files that
>                  do not start with an absolute path.
>        -l<key>   Search the specified library file,
>                  where <key> selects the file lib<key>.a.
>        -L<dir>   Search in directory <dir> for files specified by -l<key>.
>        -ma       Generate inline calls to the "alloca" function as if
>                  "#pragma alloca" directives were in the source file.
>        -M        Generate information to be included in a "make"
>                  description file; output goes to .u file.
>        -o<name>  Name the executable file <name> instead of a.out.
>                  When used with the -c option and one source file,
>                  name the object file <name> instead of filename.o.
>                  If <name> is the name of a directory, files generated by
>                  the compiler will be placed into that directory.
>        -O        Optimize generated code.
>        -O2       Equivalent level of optimization as -O in the
>                  previous release.
>        -O3       Perform some memory and compile time intensive
>                  optimizations in addition to those executed with -O2.
>                  The -O3 specific optimizations have the potential to
>                  alter the semantics of a user's program.
>                  The compiler guards against these optimizations at -O2
>                  and the option -qstrict is provided at -O3 to turn off
>                  these aggressive optimizations.
>        -O4       (C) Equivalent to -O3 -qipa with automatic generation of 
>                  architecture and tuning option ideal for that platform.
>        -p        Generate profiling support code.
>        -pg       Generate profiling support code including BSD
>                  profiling support.
>        -P        Preprocess but do not compile; output goes to .i file.
>        -Q        (C++) Turns on inlining. 
>        -Q!       (C++) Turns off inlining.
>        -Q<x>, -qinline<x>     
>                  (C) Inline all appropriate functions where x can be
>                  one of the following:
>                    !       Not inline any function
>                    =<lc>   Inline if number of source statement in
>                            function is less than the number specified
>                            in <lc>.
>                    -<nm>   Not inline function listed by names in <nm>
>                    +<nm>   Attempt to inline function listed by names
>                            in <nm>.
>        -r        Permits the output file to be produced even if it
>                  contains unresolved symbols.
>        -S        Produce a .s file for any source file processed by the
>                  compiler.
>        -t<x>     Apply prefix from the -B option to the specified program <x>,
>                  where x can be one or more of the following:
>                    p = preprocessor
>                    c = compiler frontend
>                    b = compiler backend
>                    i = compiler inliner
>                    a = assembler
>                    l = linkage editor.
>                    m = 'munch' utility
>                    f = C++ name demangler utility
>                    I = inter procedural analysis compile phase
>                    L = inter procedural analysis link phase
>        -U<name>  Undefine name as in #undef directive.
>        -v        Displays language processing commands as they
>                  are invoked by xlC; output goes to stdout.
>        -w        Suppress informational, language-level, and
>                  warning messages.
>        -W<x,y>   Give the options <y> to the compiler program <x>
>                  where x can be one or more of the following:
>                    <p,c,b,i,a,l,I,m,f>
>        -y<x>     Specify compile-time rounding of constant floating-point
>                  expressions, where <x> can be one of the following:
>                    n = round to nearest
>                    m = round toward minus infinity
>                    p = round toward positive infinity
>                    z = round toward zero.
>
>       2. Keyword options:
>
>          Keyword options are specified in one of the following ways:
>
>          -q<option>
>          -q<option>=<parameter>
>          -q<option>=<parameter>:<parameter>
>
>          where <option> is an option name and <parameter> is a
>          parameter value.
>          Keyword options with no parameters represent switches
>          that may be either on or off. The keyword by itself turns
>          the switch on, and the keyword preceded by the letters NO
>          turns the switch off. For example, -qLIST tells the
>          compiler to produce a listing and -qNOLIST tells the
>          compiler not to produce a listing. If an option that
>          represents a switch is set more than once, the compiler
>          uses the last setting.
>
>          Keyword option and parameter names may appear in either
>          UPPER CASE or lower case letters in the xlC command.
>
>
>          Options without parameters:
>
>          32          Selects 32-bit compiler mode.
>          64          Selects 64-bit compiler mode.
>          ansialias   Use type-based aliasing during optimization.
>          attr        Produce an attribute listing containing only
>                      referenced names; output goes to .lst file.
>          compact     Reduce code size where possible, at the expense
>                      of execution speed.  Code size is reduced by
>                      inhibiting optimizations that replicate or expand
>                      code inline.
>          cpluscmt    (C) Permit "//" to introduce a comment that lasts
>                      until the end of the current source line, as in C++.
>          dbcs        String literals and comments can contain DBCS
>                      characters (same as mbcs option).
>          dbxextra    Generate symbol table information for unreferenced
>                      variables. By default such information is not generated
>                      thus reducing the size of the executable compiled with
>                      the "-g" option.
>          digraph     Allow special digraph
>          dollar      Allow '$' as an identifier character
>          extchk      Perform external name type-checking and function
>                      call checking.
>          fdpr        Collect information about programs for use with
>                      the AIX fdpr (Feedback Directed Program Restructuring)
>                      performance-tuning utility.
>          funcsect    Place instructions for each function in a separate csect.
>          flttrap     Generate instructions to trap floating-point
>                      exceptions.
>          fold        Specifies that constant floating-point expressions
>                      are to be evaluated at compile time.
>          fullpath    Specifies the path information stored for files when
>                      you use "-g" and the symbolic debugger (dbx).
>          heapdebug   Enables debug versions of memory management functions.
>          idirfirst   Specify the search order for files included with
>                      the #include "file_name" directive.  Use -qidirfist
>                      with the -Idirectory option.  If -qidirfirst option
>                      is specified, the directories specified by the
>                      -Idirectory option are searched before the directory
>                      where the current file resides.
>          ignerrno    Tell the optimizer that the program will never
>                      refer to or set errno.  This allows additional
>                      optimizations.
>          inlglue     Generate fast external linkage by inlining the
>                      code (pointer glue code) necessary at calls
>                      via a function pointer and calls to external
>                      procedures.
>          ldbl128     Increase long double size from 64 to 128 bits.
>          libansi     Assumes that all functions with the names of an
>                      ANSI C library functions are in fact the system functions.
>          linedebug   Generates abbreviated line number and source file name
>                      information for the debugger. 
>          list        Produce an object listing; output goes to .lst file.
>          listopt     Display the settings of all options; output goes
>                      to .lst file.
>          longdouble  Increase long double size from 64 to 128 bits.
>          longlong    Allow long long integers.
>          macpstr     Allow '\p' as the first character of a string constant
>                      which will be replaced by the length in bytes.
>          makedep     Creates an output file that contains targets suitable for
>                      inclusion in a description file for the AIX make command.
>          mbcs        String literals and comments can contain DBCS
>                      characters (same as dbcs option).
>          noprint     Direct listing to /dev/null.
>          nostdinc    Specify which files are included with the #include
>                      "file_name" and #include <file_name> directives.
>                      If -qnostdinc is specified, the /usr/include (C) or
>                      /usr/ibmcxx/include & /usr/include (C++) directories 
>		      are not searched.
>          once        Only process each include file one time.
>                      The default is -qnoonce.
>          optimize    Same as O, and O2. Perform optimization that is the
>                      mix between speed and size.
>          pascal      Accept and ignore the keyword 'pascal' as a
>                      type modifier.
>          pdf1, pdf2  Perform aggressive optimizations with profile
>                      directed feedback.
>          phsinfo     Produce compiler phase information; output goes to
>                      stdout.
>          proto       (C) Assert that procedure call points agree
>                      with their declarations even if the procedure has
>                      not been prototyped. This allows the caller to
>                      pass floating point arguments in floating point
>                      registers instead of general purpose registers.
>          ro          Put string literals in read only area.
>          roconst     Put constant values in read only area.
>          rwvftable   (C++) Place virtual function tables into
>                      read/write memory.
>          showinc     Include the source of all included files in the
>                      source listing, if the SOURCE option is in effect.
>          source      Produce a source listing; output goes to .lst file.
>          srcmsg      Reconstruct source lines in error along with the
>                      diagnostic messages in the stderr file.
>          statsym     Adds user-defined, nonexternal names that have a
>                      persistent storage class, such as initialized and
>                      uninitialized static variables, to the name list
>                      (the symbol table of xcoff objects).
>          strict      Valid only at -O3.  This option turns off aggresive
>                      optimizations which have the potential to alter the
>                      semantics of a user's program. This option also sets
>                      -qfloat=nofltint:norsqrt.
>          strict_induc This option turns off induction variable optimizations 
>                      that have the potential to alter the semantics of a
>                      user's program. The default is "nostrict_induc" at
>                      -O3 and higher and "strict_induc" otherwise. "nostrict_induc" 
>                      is recomended if your program does not have overflows or
>                      wrap arounds of loop induction variables.
>          tempinc     Automatically generate template functions in the
>                     "tempinc" subdirectory. Use the "notempinc" option to
>                      suppress this behaviour.
>          twolink     (C++) Link twice in order to minimize the number
>                      of static constructors included from libraries (default
>                      with langlvl=compat).
>          unique      (C++) Generates unique names for static 
>                      constructor/destructor file compilation units.
>          syntaxonly  Causes the compiler to perform syntax checking without
>                      generating an object file.
>          upconv      (C) Preserves the unsigned specification when performing
>                      integral promotions.
>          vftable     (C++) Force virtual function tables to be generated
>                      in this compilation unit.  The default is to define the
>                      virtual function table for a class where the first
>                      non-inline virtual member function is declared.  If
>                      -qnovftable is specified, then no virtual function tables
>                      are produced.
>          warn64      Enables checking for possible long-to-integer or
>		      pointer-to-int truncation.
>          xcall       Generate code to static routines within a compilation
>                      unit as if they were external routines.
>          xref        Produce a cross-reference listing containing
>                      only referenced names.
>
>
>          Options with parameters:
>
>          alias=<option>
>                      Specifies the aliasing assertion to be applied to
>                      your compilation unit.
>                      The available options are:
>                      typ     Pointers to different types are never aliased.
>                      allp    Pointers are never aliased.
>                      addr    Variables are disjoint from pointers
>                              unless their address is taken.
>                      ansi    Pointers can only point to an object of the
>                              same type. Require -O option.
>          align=<algnopt>
>                      power   The compiler uses the RISC System/6000 
>                              alignment rules.
>                      full    The compiler uses the RISC System/6000 
>                              alignment rules. This is the same as power.
>                      mac68k  The compiler uses the Macintosh**
>                              alignment rules.
>                      twobyte The compiler uses the Macintosh alignment rules. 
>                              The mac68k option is the same as twobyte.
>                      packed  The compiler uses the packed alignment rules.
>                      natural The compiler maps structure members to
>                              their natural boundaries. 
>          arch=<option>
>                      Specifies the architecture on which the executable
>                      program will be run.
>                      The available options are:
>                      com     Produce an object that contains instructions
>                              that will run on all the POWER and PowerPC
>                              hardware platforms.
>                      pwr     Produce an object that contains instructions
>                              that will run on the POWER hardware
>                              platform.
>                      pwr2    Produce an object that contains instructions
>                              that will run on the POWER2 hardware
>                              platform.
>                      pwrx    Same as pwr2.
>                      ppc     Produce an object that contains instructions
>                              that will run on any of the 32-bit PowerPC
>                              hardware platforms.
>                      ppcgr   Produce an object that contains optional
>                              graphics instructions for PowerPC processors.
>                      pwr2s   Produce an object that contains instructions
>                              that will run on a pwr2s chip.
>                      p2sc    Produce an object that contains instructions
>                              that will run on a p2sc chip.
>                      601     Produce an object that contains instructions
>                              that will run on a 601 chip.
>                      602     Produce an object that contains instructions
>                              that will run on a 602 chip.
>                      603     Produce an object that contains instructions
>                              that will run on a 603 chip.
>                      604     Produce an object that contains instructions
>                              that will run on a 604 chip.
>                      403     Produce an object that contains instructions
>                              that will run on a 403 chip.
>                      rs64a   Produce an object that contains instructions
>                              that will run on a rs64a chip.
>                      The default is -qarch=com.  If the -qarch option is
>                      specified without the -qtune=<option>, the compiler
>                      uses -qtune=pwr.
>          assert=<option>
>                      Specifies the aliasing assertion to be applied to
>                      your compilation unit.
>                      The available options are:
>                      typ     Pointers to different types are never aliased.
>                      allp    Pointers are never aliased.
>                      addr    Variables are disjoint from pointers
>                              unless their address is taken.
>          attr=full   
>		      Produce an attribute listing containing all names,
>                      whether referenced or not; output goes to .lst file.
>          bitfields=signed
>          bitfields=unsigned
>                      Specify whether bitfields will be signed or unsigned.
>          chars=signed
>          chars=unsigned
>                      Specify whether the data type char will be signed
>                      or unsigned.
>          check=<option>       
>                      Generate code to check for run-time checks.
>                      nullptr  Runtime checking of addresses
>                               contained in pointer variables used to
>                               reference storage.
>                      bounds   Runtime checking of addresses when
>                               subscripting within an object of known size.
>                      divzero  Runtime checking of integer division.
>                               A trap will occur if an attempt is made to
>                               divide by zero.
>                      all      Switches on all the above suboptions.
>          cinc=<prefix>
>                      (C++) Include files from directories starting with
>		      <prefix> have the tokens 'extern "C" {' inserted 
>		      before the file and '}' after it.
>          datalocal=<name1>:<name2>: ...
>                      Specify which data items are local.  If no names are
>                      specified, all data items are assumed to be local.
>          dataimported=<name1>:<name2>: ...
>                      Specify which data items are imported.  If no names are
>                      specified, all data items are assumed to be imported.
>                      This is the default.
>          enum=<enumopt>
>                      Specify whether minimum-sized enumerated types will be
>                      produced or not. <enumopt> can be either small, int,
>                      (C++)intlong, 1, 2, 4 or 8. 
>                      small denotes that either one, two or four bytes of
>                            storage will be allocated for enum variables 
>                            based on the range of the enum constants.
>                      int is the default, and causes enum variables to be
>                            treated as though they were of type signed int
>                            depending on the range of the enum constants. 
>                            depending on the range of the enum constants. 
>                      intlong (C++) specifies that enumerations occupy 8 
>                            bytes of storage and are represented by long,
>                            if -q64 is specified and the range of the
>                            enum constants exceed the limit for int. 
>                      1 will cause enum variables to be packed into 1 byte.
>                      2 will cause enum variables to be packed into 2 bytes.
>                      4 will cause enum variables to be packed into 4 bytes.
>                      8 will cause enum variables to be packed into 8 bytes.
>          flag=<sev1>
>                      Specify severity level of diagnostics to be reported
>                      in source listing and stderr; the severity level
>                      is one of <i,w,e,s,u>.
>          flag=<sev1>:<sev2>
>                      Specify severity level of diagnostics to be reported
>                      in source listing (<sev1>), and stderr (<sev2>);
>                      the severity levels are one of <i,w,e,s,u>.
>          float=<opt1>:<opt2>:...:<optN>
>                      The available options are:
>                      emulate  Function calls are emitted in place of
>                               PowerPC floating-point instructions.
>                               Use this option only in a single-threaded
>                               stand-alone environment, targeting the
>                               PowerPC 403 processor.
>                               Do not use this suboption with any of the
>                               following:
>                               o  -qarch=pwr, -qarch=pwr2, -qarch=pwrx
>                               o  -qlongdouble, -qldbl128
>                               o  xlC128, xlc128 invocation commands
>                      fltint   Specify whether range checking of floating
>                               point to integer conversions is done.
>                               Default at -O2: -qfloat=nofltint.
>                               Default at -O3: -qfloat=fltint.
>                      hsflt    Never round single-precision expressions,
>                               and don't perform range checking for
>                               floating-point to integer conversions.
>                      hssngl   Round single-precision expressions only
>                               when the results are stored into REAL*4 memory
>                               locations.
>                      nans     Detect conversion of single-precision NaNS to
>                               double precision call checking.
>                      nomaf    Suppress generation of multiply-add
>                               instructions.
>                      nofold   Suppress compile-time evaluation of constant
>                               floating-point expressions.
>                      rndsngl  Ensure strict adherence to IEEE standard.
>                               all operations on single-precision values
>                               produce results that remain in single
>                               precision.
>                      rrm      Specify run-time rounding mode. Compile with
>                               this option if the run-time rounding mode
>                               is round toward minus infinity, round toward
>                               positive infinity, or not known.
>                      rsqrt    Specify whether a division by the result of a
>                               square root can be replaced with a multiply
>                               by the reciprocal of the square root.
>                               Default at -O2: -qfloat=norsqrt.
>                               Default at -O3: -qfloat=rsqrt.
>                      spnans   Generate extra instructions to detect signalling
>                               NaN on conversion from single precision to
>                               double precision.  Obsolete; use the equivalent
>                               -qfloat=nans option.
>          flttrap=<opt1>:<opt2>:...:<optN>
>                      Generate instructions to detect and trap floating-point.
>                      The available options are:  overflow, underflow,
>                      zerodivide, invalid, inexact, enable, imprecise.
>          halt=<sev>  
>		      Stop compiler after first phase if severity of errors
>                      detected equals or exceeds <sev>; the severity
>                      level is one of i, w, e, s, u.
>          genpcomp[=dirname]
>                      Generate precompiled include files.  See IBM C and C++ 
>        	      Compilers User's Guide for details.
>          genproto=<parmnames>
>                      Produces ANSI prototypes from K&R function definitions.
>          ignprag=disjoint
>          ignprag=isolated
>          ignprag=all
>                      Ignore the aliasing pragmas disjoint and/or
>                      isolated_call.
>          info
>          info=all
>                      Produce additional lint-like messages. Turns on all 
>                      diagnostic messages for all groups.
>          info=<group>
>                      Produce additional lint-like messages based on <group>.
>                      cmp      Possible redundancies in unsigned comparisons
>                      cnd      Possible redundancies or problems in conditional
>                               expressions
>                      cns      Operations involving constants.
>                      cnv      Conversions
>                      dcl      Consistency of declarations
>                      eff      Statements with no effect
>                      enu      Consistency of enum variables
>                      ext      Unused external definitions
>                      gen      General diagnostic messages
>                      gnr      Generation of temporary variables
>                      got      Use of goto statements
>                      ini      Possible problems with initialization
>                      inl      Functions not inlined
>                      lan      Language level effects
>                      obs      Obsolete features
>                      ord      Unspecified order of evaluation
>                      par      Unused parameters
>                      por      Nonportable language constructs
>                      ppc      Possible problems with using the preprocessor
>                      ppt      Trace of preprocessor actions
>                      pro      Missing function prototypes
>                      rea      Code that cannot be reached
>                      ret      Consistency of return statements
>                      trd      Possible truncation or loss of data or precision
>                      tru      Variable names truncated by the compiler
>                      uni      Unitialized variables
>                      use      Unused auto and static variables
>                      vft      (C++) Generation of virtual function tables
>          initauto=<hh>
>                      Initialialize automatic storage to <hh>. <hh> is a
>                      hexadecimal value.  This generates extra code and
>                      should only be used for error determination.
>          inline[=<x>]
>		      This is functionally equivalent to the -Q option.
>          ipa[=<ipa_options>]
>                      (C) Turn on inter-procedural analysis.  See IBM C and C++ 
>		      Compilers User's Guide for details.
>          isolated_call=<name1>:<name2>: ...
>                      Specify that the calls to the functions listed have no
>                      side effects. <name1> and <name2> are function names.
>                      The user may specify as many function names as
>                      necessary.
>          langlvl=<langlvl>
>                      Specify language level to be used during compilation.
>                      <langlvl> can be ansi, saal2, saa, extended, or classic.
>          maxerr=<num>[:<sev>]
>		      Instructs the compiler to halt compilation when <num>
>                      errors of <sev> or greater severity is reached.  The
>		      default for <sev> is current value of the -qhalt option.
>          maxmem=<num>
>                      Limit the amount of memory used by space intensive
>                      optimizations to <num>.  <num> specified in kilobytes.
>                      prioriry=NNN
>          priority=<num>
>                      (C++) Specifies the priority level for the initialization
>                      of static constructors.
>          optimize
>                      Same as -O. Optimize generated code using the best
>                      best combination for speed and size.
>          optimize=<level>
>                      Enables different levels of optimization.
>                      2       Same as -O and -qoptimize.
>                      3       Same as -O3. Aggresive optimization.
>                      4       (C) Same as -O4. Internally generates -O3 -qipa 
>                              with with automatic architecture and tuning option
>                              generation.
>          proclocal=<name1>:<name2>: ...
>                      Specify which functions are local.
>                      If no filenames are specified, all invoked functions
>                      are assumed to be defined whithin the current file.
>                      The last explicit specification for a function takes
>                      precedence.
>          procimported=<name1>:<name2>: ...
>                      Specify which functions are imported.  If no filenames
>                      are specified, all invoked functions are assumed to be
>                      defined outside the current file.  The last explicit
>                      specification for a function takes precedence.
>          procunknown=<name1>:<name2>: ...
>                      Specify which functions are unknown to be local or
>                      imported.  If no filenames are specified, all functions
>                      called are assumed to be unknown. This is the default
>                      when no user options are specified. The last explicit
>                      specification for a function takes precedence.
>          rtti=<option>
>                      (C++) Use this option to generate run-time type 
>                      identification (RTTI) information for the typeid 
>                      operator and the dynamic_cast operator. 
>                      all             The compiler generates the  
>                                      information needed for the RTTI typeid 
>                                      and dynamic_cast operators.
>                      type | typeinfo The compiler generates the information 
>                                      needed for the RTTI typeid operator, 
>                                      but the information needed for
>                                      dynamic_cast operator is not generated. 
>                      dyna | dynamiccast
>                                      The compiler generates the information 
>                                      needed for the RTTI dynamic_cast 
>                                      operator, but the information needed for
>                                      typeid operator is not generated. 
>          spill=<size>
>                      Specify the size of the register allocation spill
>                      area.
>          tabsize=<size>
>                      Changes the length of tabs in your source file.
>          tbtable=<option>
>                      Generate a traceback table for each function and
>                      place it in the text segment at the end of the
>                      function code.
>                      The available options are:
>                      none    No traceback table is generated.
>                      full    A full traceback table is generated.
>                              This is the default with -g specified.
>                      small   A traceback table is generated with no name or
>                              parameter information.
>                              This is the default when -g is NOT specified.
>          tune=<option>
>                      Specifies the architecture system for which the
>                      executable program is optimized.
>                      The available options are:
>                      403    Produce an object optimized for all the
>                             PowerPC 403 processors.
>                             Use -qfloat=emulate to emulate the floating-point
>                             instructions omitted by the 403 processor.
>                      601    Produce an object optimized for all the
>                             PowerPC 601 processors.
>                      602    Produce an object optimized for all the
>                             PowerPC 602 processors.
>                      603    Produce an object optimized for all the
>                             PowerPC 603 processors.
>                      604    Produce an object optimized for all the
>                             PowerPC 604 processors.
>                      p2sc   Produce an object optimized for all the
>                             p2sc processors.
>                      pwr    Produce an object optimized for the POWER
>                             hardware platform.
>                      pwr2   Produce an object optimized for the
>                             POWER2 hardware platform.
>                      pwr2s  Produce an object optimized for the
>                             POWER2 hardware platform, avoiding certain
>                             quadruple-precision instructions that would
>                             slow program performance.
>                      pwrx   Same as pwr2.
>                      rs64a  Produce an object optimized for all the
>                             rs64a processors.
>          tempinc[=<directory>]
>                      (C++) Automatically generate template functions in the
>                      specified directory. Use the "notempinc" option
>                      to suppress this behaviour.
>          tempmax=<number>
>                      (C++) Specify the maximum number of files to be created 
>		      in the tempinc directory for each template file.  The
>                      default is 1.
>          unroll[=n]  
>		      Allow the optimizer to unroll loops.
>          usepcomp[=dirname]
>                      Use precompiled include files.  See IBM C and C++ 
>		      Compilers User's Guide for details.
>          wait[=<seconds>]
>                      Specify the number of seconds to wait for a LUM
>                      license to become available.  The default is to wait
>                      forever.
>          xref=full   
>		      Produce a cross-reference listing containing
>                      all names, whether referenced or not; output goes
>                      to .lst file.
>
>  Environment Variables
>     1.OBJECT_MODE changes the compilation-mode behavior, unless overridden by
>                   configuration file or command-line options
>
>        Setting
>
>         not set   32-bit compiler mode.
>          32       32-bit compiler mode.
>          64       64-bit compiler mode.
>         32_64     Fatal error and stop, unless an explicit configuration 
>                   file or command-line compiler-mode setting exists.
>        any other  Fatal error and stop, unless an explicit configuration 
>                   file or command-line compiler-mode setting exists.
>
>  For a detailed description of each option, please refer to the
>  IBM C and C++ Compilers User's Guide.
>
>exec: /usr/bin/pg(/usr/bin/pg,/usr/ibmcxx/exe/default_msg/ibmcxx.help,NULL)
>unlink: /tmp/xlcW0oc0Uaa
>unlink: /tmp/xlcW1oc0Uab
>unlink: /tmp/xlcW2oc0Uac
>configure:1643: $? = 249
>configure:1645: cc -V </dev/null >&5
>cc: 1501-208 command option V is missing a subargument
>configure:1648: $? = 40
>configure:1672: checking for C compiler default output
>configure:1675: cc    conftest.c  >&5
>configure:1678: $? = 0
>configure:1724: result: a.out
>configure:1729: checking whether the C compiler works
>configure:1735: ./a.out
>Could not load program ./a.out:
>	Dependent module libc.a(shr.o) could not be loaded.
>Could not load module libc.a(shr.o).
>Error was: No such file or directory
>configure:1738: $? = 255
>configure:1745: error: cannot run C compiled programs.
>If you meant to cross compile, use `--host'.
>See `config.log' for more details.
>
>## ---------------- ##
>## Cache variables. ##
>## ---------------- ##
>
>ac_cv_env_CC_set=''
>ac_cv_env_CC_value=''
>ac_cv_env_CFLAGS_set=''
>ac_cv_env_CFLAGS_value=''
>ac_cv_env_CPPFLAGS_set=''
>ac_cv_env_CPPFLAGS_value=''
>ac_cv_env_CPP_set=''
>ac_cv_env_CPP_value=''
>ac_cv_env_LDFLAGS_set=''
>ac_cv_env_LDFLAGS_value=''
>ac_cv_env_build_alias_set=''
>ac_cv_env_build_alias_value=''
>ac_cv_env_host_alias_set=''
>ac_cv_env_host_alias_value=''
>ac_cv_env_target_alias_set=''
>ac_cv_env_target_alias_value=''
>ac_cv_exeext=''
>ac_cv_prog_ac_ct_CC=cc
>
>## ----------------- ##
>## Output variables. ##
>## ----------------- ##
>
>AR=''
>CC='cc'
>CFLAGS=''
>CPP=''
>CPPFLAGS=''
>DEFS=''
>ECHO_C='ECHO_N=''
>ECHO_T=''
>EGREP=''
>ENT=''
>EXEEXT=''
>INSTALL_DATA=''
>INSTALL_PROGRAM=''
>INSTALL_SCRIPT=''
>INSTALL_SSH_PRNG_CMDS=''
>INSTALL_SSH_RAND_HELPER=''
>LD=''
>LDFLAGS=''
>LIBOBJS=''
>LIBPAM=''
>LIBS=''
>LIBWRAP=''
>LOGIN_PROGRAM_FALLBACK=''
>LTLIBOBJS=''
>MANTYPE=''
>NROFF=''
>OBJEXT=''
>OPENSC_CONFIG=''
>PACKAGE_BUGREPORT=''
>PACKAGE_NAME=''
>PACKAGE_STRING=''
>PACKAGE_TARNAME=''
>PACKAGE_VERSION=''
>PATH_SEPARATOR=':'
>PERL=''
>PRIVSEP_PATH=''
>PROG_ARP=''
>PROG_DF=''
>PROG_IFCONFIG=''
>PROG_IPCS=''
>PROG_JSTAT=''
>PROG_LAST=''
>PROG_LASTLOG=''
>PROG_LS=''
>PROG_NETSTAT=''
>PROG_PS=''
>PROG_SAR=''
>PROG_TAIL=''
>PROG_UPTIME=''
>PROG_VMSTAT=''
>PROG_W=''
>PROG_WHO=''
>RANLIB=''
>SED=''
>SH=''
>SHELL='/bin/sh'
>SSH_PRIVSEP_USER=''
>STRIP_OPT=''
>TEST_MINUS_S_SH=''
>XAUTH_PATH=''
>ac_ct_CC='cc'
>ac_ct_RANLIB=''
>bindir='${exec_prefix}/bin'
>build=''
>build_alias=''
>build_cpu=''
>build_os=''
>build_vendor=''
>datadir='${prefix}/share'
>exec_prefix='NONE'
>host=''
>host_alias=''
>host_cpu=''
>host_os=''
>host_vendor=''
>includedir='${prefix}/include'
>infodir='${prefix}/info'
>libdir='${exec_prefix}/lib'
>libexecdir='${exec_prefix}/libexec'
>localstatedir='${prefix}/var'
>mandir='${prefix}/man'
>mansubdir=''
>oldincludedir='/usr/include'
>piddir=''
>prefix='NONE'
>program_transform_name='s,x,x,'
>sbindir='${exec_prefix}/sbin'
>sharedstatedir='${prefix}/com'
>sysconfdir='/etc/ssh'
>target_alias=''
>user_path=''
>xauth_path=''
>
>## ----------- ##
>## confdefs.h. ##
>## ----------- ##
>
>#define PACKAGE_BUGREPORT ""
>#define PACKAGE_NAME ""
>#define PACKAGE_STRING ""
>#define PACKAGE_TARNAME ""
>#define PACKAGE_VERSION ""
>
>configure: exit 1

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Attachments on bug 622: 364