configure: Try using explicit target option for cross compiling.

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2020-03-04 17:15:58 +01:00 committed by Alexandre Julliard
parent 4ec4988c2e
commit 0eea1b09d3
2 changed files with 58 additions and 0 deletions

44
configure vendored
View File

@ -9812,6 +9812,50 @@ $as_echo "$wine_cv_crosscc" >&6; }
esac esac
shift shift
done done
llvm_target=$CROSSTARGET
if test -z "$llvm_target"
then
case $host_cpu in
*i[3456789]86*) llvm_target=i686-windows-gnu ;;
*) llvm_target=$host_cpu-windows-gnu ;;
esac
fi
as_ac_var=`$as_echo "ac_cv_crosscflags_-target $llvm_target -fuse-ld=lld" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the cross-compiler supports -target $llvm_target -fuse-ld=lld" >&5
$as_echo_n "checking whether the cross-compiler supports -target $llvm_target -fuse-ld=lld... " >&6; }
if eval \${$as_ac_var+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_wine_try_cflags_saved=$CFLAGS
ac_wine_try_cflags_saved_cc=$CC
ac_wine_try_cflags_saved_exeext=$ac_exeext
CFLAGS="$CFLAGS $EXTRACROSSCFLAGS -nostartfiles -nodefaultlibs -target $llvm_target -fuse-ld=lld"
CC="$CROSSCC"
ac_exeext=".exe"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
void __stdcall __delayLoadHelper2(void *descr, void *addr) {} int __cdecl mainCRTStartup(void) { return 0; }
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
eval "$as_ac_var=yes"
else
eval "$as_ac_var=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
CFLAGS=$ac_wine_try_cflags_saved
CC=$ac_wine_try_cflags_saved_cc
ac_exeext=$ac_wine_try_cflags_saved_exeext
fi
eval ac_res=\$$as_ac_var
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
CROSSTARGET=$llvm_target
EXTRACROSSCFLAGS="$EXTRACROSSCFLAGS -target $CROSSTARGET"
CFLAGS="$CFLAGS -fuse-ld=lld"
fi
fi fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the cross-compiler supports -fno-strict-aliasing" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the cross-compiler supports -fno-strict-aliasing" >&5
$as_echo_n "checking whether the cross-compiler supports -fno-strict-aliasing... " >&6; } $as_echo_n "checking whether the cross-compiler supports -fno-strict-aliasing... " >&6; }

View File

@ -1041,6 +1041,20 @@ then
esac esac
shift shift
done done
dnl Check if cross compiler supports -target argument
llvm_target=$CROSSTARGET
if test -z "$llvm_target"
then
case $host_cpu in
*i[[3456789]]86*) llvm_target=i686-windows-gnu ;;
*) llvm_target=$host_cpu-windows-gnu ;;
esac
fi
WINE_TRY_CROSSCFLAGS([-target $llvm_target -fuse-ld=lld],
[CROSSTARGET=$llvm_target
EXTRACROSSCFLAGS="$EXTRACROSSCFLAGS -target $CROSSTARGET"
CFLAGS="$CFLAGS -fuse-ld=lld"])
fi fi
WINE_TRY_CROSSCFLAGS([-fno-strict-aliasing]) WINE_TRY_CROSSCFLAGS([-fno-strict-aliasing])
dnl clang needs to be told to fail on unknown options dnl clang needs to be told to fail on unknown options