rocklinux/architecture/x86/gcc-options

#!/bin/bash

if [ "$ROCKCFG_X86_BITS" = 32 ]
then

	case "$ROCKCFG_X86_OPT" in
	    generic)
		# Append options so the gcc -V option always comes first.
		var_append GCC_WRAPPER_APPEND " " "-march=i486"
		;;
	    via-c3)
		var_append GCC2_WRAPPER_APPEND " " "-march=k6"
		var_append GCC3_WRAPPER_APPEND " " "-march=k62"
		var_append GCC4_WRAPPER_APPEND " " "-march=k62"
		;;
	    via-c3-improved)
		var_append GCC_WRAPPER_APPEND " " "-march=i686"
		;;
	    via-c3-2)
		var_append GCC2_WRAPPER_APPEND " " "-march=pentiumpro"
		var_append GCC3_WRAPPER_APPEND " " "-march=pentium-mmx"
		var_append GCC4_WRAPPER_APPEND " " "-march=pentium-mmx"
		;;
	    k6*)
		var_append GCC2_WRAPPER_APPEND " " "-march=k6"

		var_append GCC3_WRAPPER_APPEND " " "-march=$ROCKCFG_X86_OPT"
		# workaround and should be removed when gcc 3.x got fixed ...
		var_append GCC3_WRAPPER_APPEND " " "-fno-branch-count-reg"

		var_append GCC4_WRAPPER_APPEND " " "-march=$ROCKCFG_X86_OPT"
		;;
	    *)
		var_append GCC3_WRAPPER_APPEND " " "-march=$ROCKCFG_X86_OPT"
		var_append GCC4_WRAPPER_APPEND " " "-march=$ROCKCFG_X86_OPT"
		;;
	esac

	case "$ROCKCFG_X86_OPT" in
	    i486)
		var_append GCC2_WRAPPER_APPEND " " "-march=$ROCKCFG_X86_OPT" ;;
	    pentium|pentium-mmx)
		var_append GCC2_WRAPPER_APPEND " " "-march=pentium" ;;
	    pentium*)
		var_append GCC2_WRAPPER_APPEND " " "-march=pentiumpro" ;;
	    athlon*)
		var_append GCC2_WRAPPER_APPEND " " "-march=k6" ;;
	esac

else
	case "$ROCKCFG_X86_OPT" in
	    generic)
		# Other values like i686 or pentiumpro cause a build error in e.g.
		# glibc 2.6.1 when building with gcc 4.2.1.
		if [[ "$xpkg" = *-32bit ]] ; then
			var_append GCC_WRAPPER_APPEND " " "-march=pentium4"
		fi
		;;
	    intel)
		var_append GCC2_WRAPPER_APPEND " " "-march=x86_64"
		var_append GCC3_WRAPPER_APPEND " " "-march=nocona"
		var_append GCC4_WRAPPER_APPEND " " "-march=nocona"
		;;
	    athlon)
		var_append GCC2_WRAPPER_APPEND " " "-march=x86_64"
		var_append GCC3_WRAPPER_APPEND " " "-march=k8"
		var_append GCC4_WRAPPER_APPEND " " "-march=k8"
		;;
	esac
fi

# remove other -march and -mtune options from the argument list
var_insert GCC_WRAPPER_REMOVE " " "-march=* -mtune=*"
# Remove deprecated options:
var_insert GCC_WRAPPER_REMOVE " " "-mcpu=* -m386 -m486 -mpentium -mpentiumpro"