36 lines
1.1 KiB
Text
36 lines
1.1 KiB
Text
# Version 2.96 of gcc (shipped with RedHat Linux 7.[01] and Mandrake) had
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# serious problems.
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AC_DEFUN(AC_GCC_CONFIG1, [
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AC_CACHE_CHECK([whether we are using gcc version 2.96],
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db_cv_gcc_2_96, [
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db_cv_gcc_2_96=no
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if test "$GCC" = "yes"; then
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GCC_VERSION=`${MAKEFILE_CC} --version`
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case ${GCC_VERSION} in
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2.96*)
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db_cv_gcc_2_96=yes;;
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esac
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fi])
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if test "$db_cv_gcc_2_96" = "yes"; then
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CFLAGS=`echo "$CFLAGS" | sed 's/-O2/-O/'`
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CXXFLAGS=`echo "$CXXFLAGS" | sed 's/-O2/-O/'`
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AC_MSG_WARN([INSTALLED GCC COMPILER HAS SERIOUS BUGS; PLEASE UPGRADE.])
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AC_MSG_WARN([GCC OPTIMIZATION LEVEL SET TO -O.])
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fi])
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# Versions of g++ up to 2.8.0 required -fhandle-exceptions, but it is
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# renamed as -fexceptions and is the default in versions 2.8.0 and after.
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AC_DEFUN(AC_GCC_CONFIG2, [
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AC_CACHE_CHECK([whether g++ requires -fhandle-exceptions],
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db_cv_gxx_except, [
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db_cv_gxx_except=no;
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if test "$GXX" = "yes"; then
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GXX_VERSION=`${MAKEFILE_CXX} --version`
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case ${GXX_VERSION} in
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1.*|2.[[01234567]].*|*-1.*|*-2.[[01234567]].*)
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db_cv_gxx_except=yes;;
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esac
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fi])
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if test "$db_cv_gxx_except" = "yes"; then
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CXXFLAGS="$CXXFLAGS -fhandle-exceptions"
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fi])
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