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* configure.ac: Add -freg-struct-return on all platforms that

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support it.
This commit is contained in:
Vladimir Serbinenko 2013-11-07 03:33:20 +01:00
parent b35ec29927
commit cdc17f60dc
3 changed files with 20 additions and 4 deletions
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11
configure.ac
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@ -499,6 +499,17 @@ if test "x$target_cpu" = xi386; then
fi
fi
AC_CACHE_CHECK([whether -freg-struct-return works], [grub_cv_cc_freg_struct_return], [
CFLAGS="$TARGET_CFLAGS -freg-struct-return -Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_cc_freg_struct_return=yes],
[grub_cv_cc_freg_struct_return=no])
])
if test "x$grub_cv_cc_freg_struct_return" = xyes; then
TARGET_CFLAGS="$TARGET_CFLAGS -freg-struct-return"
fi
if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$platform" != xemu; then
# Some toolchains enable these features by default, but they need
# registers that aren't set up properly in GRUB.