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Viewing changes to m4/pandora_warnings.m4

Merge Monty - Updates to pandora-build to support features of gcc 4.5.

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m4/pandora_warnings.m4
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          [ac_cv_warnings_as_errors=yes],
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          [ac_cv_warnings_as_errors=no]))
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  AC_ARG_ENABLE([gcc-profile-mode],
 
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      [AS_HELP_STRING([--enable-gcc-profile-mode],
 
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         [Toggle gcc profile mode @<:@default=off@:>@])],
 
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      [ac_gcc_profile_mode="$enableval"],
 
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      [ac_gcc_profile_mode="no"])
 
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  AC_ARG_ENABLE([profiling],
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      [AS_HELP_STRING([--enable-profiling],
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         [Toggle profiling @<:@default=off@:>@])],
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            F_DIAGNOSTICS_SHOW_OPTION="-fdiagnostics-show-option"
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          ])
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    AC_CACHE_CHECK([whether it is safe to use -floop-parallelize-all],
 
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      [ac_cv_safe_to_use_floop_parallelize_all_],
 
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      [save_CFLAGS="$CFLAGS"
 
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       CFLAGS="-floop-parallelize-all ${AM_CFLAGS} ${CFLAGS}"
 
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       AC_COMPILE_IFELSE(
 
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         [AC_LANG_PROGRAM([],[])],
 
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         [ac_cv_safe_to_use_floop_parallelize_all_=yes],
 
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         [ac_cv_safe_to_use_floop_parallelize_all_=no])
 
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       CFLAGS="$save_CFLAGS"])
 
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    AS_IF([test "$ac_cv_safe_to_use_floop_parallelize_all_" = "yes"],
 
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          [
 
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            F_LOOP_PARALLELIZE_ALL="-floop-parallelize-all"
 
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          ])
 
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    NO_STRICT_ALIASING="-fno-strict-aliasing -Wno-strict-aliasing"
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    NO_SHADOW="-Wno-shadow"
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        [ac_cv_safe_to_use_Wextra_=no])
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      CFLAGS="$save_CFLAGS"])
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      BASE_WARNINGS="${W_FAIL} -pedantic -Wall -Wundef -Wshadow ${NO_UNUSED} ${F_DIAGNOSTICS_SHOW_OPTION} ${BASE_WARNINGS_FULL}"
 
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      BASE_WARNINGS="${W_FAIL} -pedantic -Wall -Wundef -Wshadow ${NO_UNUSED} ${F_DIAGNOSTICS_SHOW_OPTION} ${F_LOOP_PARALLELIZE_ALL} ${BASE_WARNINGS_FULL}"
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      AS_IF([test "$ac_cv_safe_to_use_Wextra_" = "yes"],
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            [BASE_WARNINGS="${BASE_WARNINGS} -Wextra"],
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            [BASE_WARNINGS="${BASE_WARNINGS} -W"])