# 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=noif test "$GCC" = "yes"; then	GCC_VERSION=`${MAKEFILE_CC} --version`	case ${GCC_VERSION} in	2.96*)		db_cv_gcc_2_96=yes;;	esacfi])if test "$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 ${GXX_VERSION} in	1.*|2.[[01234567]].*|*-1.*|*-2.[[01234567]].*)		db_cv_gxx_except=yes;;	esacfi])if test "$db_cv_gxx_except" = "yes"; then	CXXFLAGS="$CXXFLAGS -fhandle-exceptions"fi])