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Diffstat (limited to 'storage/bdb/dist/aclocal/gcc.ac')
| -rw-r--r-- | storage/bdb/dist/aclocal/gcc.ac | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/storage/bdb/dist/aclocal/gcc.ac b/storage/bdb/dist/aclocal/gcc.ac new file mode 100644 index 00000000000..0949d982f17 --- /dev/null +++ b/storage/bdb/dist/aclocal/gcc.ac @@ -0,0 +1,36 @@ +# Version 2.96 of gcc (shipped with RedHat Linux 7.[01] and Mandrake) had +# serious problems. +AC_DEFUN(AC_GCC_CONFIG1, [ +AC_CACHE_CHECK([whether we are using gcc version 2.96], +db_cv_gcc_2_96, [ +db_cv_gcc_2_96=no +if test "$GCC" = "yes"; then + GCC_VERSION=`${MAKEFILE_CC} --version` + case ${GCC_VERSION} in + 2.96*) + db_cv_gcc_2_96=yes;; + esac +fi]) +if test "$db_cv_gcc_2_96" = "yes"; then + CFLAGS=`echo "$CFLAGS" | sed 's/-O2/-O/'` + CXXFLAGS=`echo "$CXXFLAGS" | sed 's/-O2/-O/'` + AC_MSG_WARN([INSTALLED GCC COMPILER HAS SERIOUS BUGS; PLEASE UPGRADE.]) + AC_MSG_WARN([GCC OPTIMIZATION LEVEL SET TO -O.]) +fi]) + +# Versions of g++ up to 2.8.0 required -fhandle-exceptions, but it is +# renamed as -fexceptions and is the default in versions 2.8.0 and after. +AC_DEFUN(AC_GCC_CONFIG2, [ +AC_CACHE_CHECK([whether g++ requires -fhandle-exceptions], +db_cv_gxx_except, [ +db_cv_gxx_except=no; +if test "$GXX" = "yes"; then + GXX_VERSION=`${MAKEFILE_CXX} --version` + case ${GXX_VERSION} in + 1.*|2.[[01234567]].*|*-1.*|*-2.[[01234567]].*) + db_cv_gxx_except=yes;; + esac +fi]) +if test "$db_cv_gxx_except" = "yes"; then + CXXFLAGS="$CXXFLAGS -fhandle-exceptions" +fi]) |