* configure.ac: Prevent cflags leaking to subsequent tests by always
resetting cflags to target_cflags in target tests.
This commit is contained in:
Vladimir Serbinenko
parent
ac319fbc90
commit
24f4e57c46
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@ -1,3 +1,8 @@
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2013-11-07 Vladimir Serbinenko <phcoder@gmail.com>
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* configure.ac: Prevent cflags leaking to subsequent tests by always
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resetting cflags to target_cflags in target tests.
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2013-11-07 Vladimir Serbinenko <phcoder@gmail.com>
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* grub-core/kern/parser.c (grub_parser_split_cmdline): Remove nested
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37
configure.ac
37
configure.ac
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@ -479,7 +479,7 @@ TARGET_CCASFLAGS="$TARGET_CCASFLAGS -g"
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# Force no alignment to save space on i386.
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if test "x$target_cpu" = xi386; then
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AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
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CFLAGS="$CFLAGS -falign-loops=1"
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CFLAGS="$TARGET_CFLAGS -falign-loops=1"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_falign_loop=yes],
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[grub_cv_cc_falign_loop=no])
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@ -498,21 +498,15 @@ if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$p
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TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-3dnow"
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fi
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if test "x$target_cpu" = xi386 && test "x$platform" != xemu; then
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TARGET_CFLAGS="$TARGET_CFLAGS -march=i386"
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fi
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# By default, GCC 4.4 generates .eh_frame sections containing unwind
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# information in some cases where it previously did not. GRUB doesn't need
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# these and they just use up vital space. Restore the old compiler
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# behaviour.
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AC_CACHE_CHECK([whether -fno-dwarf2-cfi-asm works], [grub_cv_cc_fno_dwarf2_cfi_asm], [
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SAVE_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -fno-dwarf2-cfi-asm"
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CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_fno_dwarf2_cfi_asm=yes],
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[grub_cv_cc_fno_dwarf2_cfi_asm=no])
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CFLAGS="$SAVE_CFLAGS"
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])
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if test "x$grub_cv_cc_fno_dwarf2_cfi_asm" = xyes; then
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@ -521,7 +515,7 @@ fi
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if test x"$target_os" = xcygwin; then
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AC_CACHE_CHECK([whether option -fno-reorder-functions works], grub_cv_cc_no_reorder_functions, [
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CFLAGS="$CFLAGS -fno-reorder-functions"
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CFLAGS="$TARGET_CFLAGS -fno-reorder-functions"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_no_reorder_functions=yes],
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[grub_cv_cc_no_reorder_functions=no])
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@ -537,12 +531,10 @@ fi
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# these and they just use up vital space. Restore the old compiler
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# behaviour.
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AC_CACHE_CHECK([whether -fno-asynchronous-unwind-tables works], [grub_cv_cc_fno_asynchronous_unwind_tables], [
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SAVE_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -fno-dwarf2-cfi-asm"
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CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_fno_asynchronous_unwind_tables=yes],
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[grub_cv_cc_fno_asynchronous_unwind_tables=no])
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CFLAGS="$SAVE_CFLAGS"
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])
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if test "x$grub_cv_cc_fno_asynchronous_unwind_tables" = xyes; then
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@ -617,12 +609,10 @@ if test x"$platform" = xefi ; then
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fi
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if test x"$efiemu_excuse" = x ; then
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AC_CACHE_CHECK([whether options required for efiemu work], grub_cv_cc_efiemu, [
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SAVED_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -m64 -mcmodel=large -mno-red-zone -nostdlib"
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CFLAGS="$TARGET_CFLAGS -m64 -mcmodel=large -mno-red-zone -nostdlib"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_efiemu=yes],
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[grub_cv_cc_efiemu=no])
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CFLAGS="$SAVED_CFLAGS"
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])
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if test x$grub_cv_cc_efiemu = xno; then
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efiemu_excuse="cannot compile with -m64 -mcmodel=large -mno-red-zone -nostdlib"
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@ -638,6 +628,10 @@ enable_efiemu=no
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fi
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AC_SUBST([enable_efiemu])
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if test "x$target_cpu" = xi386 && test "x$platform" != xemu; then
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TARGET_CFLAGS="$TARGET_CFLAGS -march=i386"
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fi
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if test "x$target_m32" = x1; then
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# Force 32-bit mode.
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TARGET_CFLAGS="$TARGET_CFLAGS -m32"
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@ -696,8 +690,7 @@ esac
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if test "$target_cpu" = x86_64; then
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# Use large model to support 4G memory
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AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
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SAVED_CFLAGS=$CFLAGS
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CFLAGS="$CFLAGS -m64 -mcmodel=large"
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CFLAGS="$TARGET_CFLAGS -m64 -mcmodel=large"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_mcmodel=yes],
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[grub_cv_cc_mcmodel=no])
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@ -712,7 +705,7 @@ fi
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if test "$target_cpu"-"$platform" = x86_64-efi; then
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# EFI writes to stack below %rsp, we must not use the red zone
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AC_CACHE_CHECK([whether option -mno-red-zone works], grub_cv_cc_no_red_zone, [
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CFLAGS="$CFLAGS -m64 -mno-red-zone"
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CFLAGS="$TARGET_CFLAGS -m64 -mno-red-zone"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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[grub_cv_cc_no_red_zone=yes],
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[grub_cv_cc_no_red_zone=no])
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@ -823,9 +816,9 @@ fi
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grub_ASM_USCORE
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if test x$grub_cv_asm_uscore = xyes; then
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CFLAGS="$CFLAGS -Wl,--defsym,_abort=_main"
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CFLAGS="$TARGET_CFLAGS -Wl,--defsym,_abort=_main"
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else
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CFLAGS="$CFLAGS -Wl,--defsym,abort=main"
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CFLAGS="$TARGET_CFLAGS -Wl,--defsym,abort=main"
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fi
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# Check for libgcc symbols
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@ -876,13 +869,11 @@ fi
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fi
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AC_CACHE_CHECK([whether -Wtrampolines work], [grub_cv_cc_wtrampolines], [
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SAVED_CFLAGS="$CFLAGS"
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CFLAGS="$TARGET_CFLAGS -Wtrampolines"
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CFLAGS="$TARGET_CFLAGS -Wtrampolines -Werror"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
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int va_arg_func (int fixed, va_list args);]], [[]])],
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[grub_cv_cc_wtrampolines=yes],
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[grub_cv_cc_wtrampolines=no])
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CFLAGS="$SAVED_CFLAGS"
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])
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if test x"$grub_cv_cc_wtrampolines" = xyes ; then
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