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build: Add soft-float handling for SuperH (sh4) 

While GRUB has no platform support for SuperH (sh4) yet, this change
adds the target-specific handling of soft-floats such that the GRUB
utilities can be built on this target.

Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
John Paul Adrian Glaubitz 2020-03-04 14:31:34 +01:00 committed by Daniel Kiper
parent 9b89b1dedb
commit 2bfd3654a6
1 changed files with 5 additions and 0 deletions
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5
configure.ac
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@ -854,6 +854,11 @@ if test x"$platform" != xemu ; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_target_cc_soft_float="-mno-inline-float-divide -mno-inline-sqrt"], [])
fi
if test "x$target_cpu" = xsh4; then
CFLAGS="$TARGET_CFLAGS -m4-nofpu -Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_target_cc_soft_float="-m4-nofpu"], [])
fi
for cand in "-msoft-float -Xclang -msoft-float -Xclang -no-implicit-float" \
"-Xclang -msoft-float -Xclang -no-implicit-float" \
"-Xclang -msoft-float" "-msoft-float"; do