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configure: Use --no-default-config option on clang when available.

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Some distros arbitrary flags into clang config files without guarding it for applicable targets, which breaks cross compilation.
This commit is contained in:
Jacek Caban 2023-11-24 19:59:38 +01:00 committed by Alexandre Julliard
parent cf29f40ce4
commit 471d7178ae
Notes: Alexandre Julliard 2023-11-28 00:20:20 +01:00 
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/wine/-/merge_requests/4492
2 changed files with 63 additions and 10 deletions
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54
configure vendored
View file

@ -10654,10 +10654,46 @@ then :
esac
fi
llvm_extra_cflags="-target $llvm_target -fuse-ld=lld"
llvm_extra_ldflags=""
case $llvm_target in
*windows) llvm_cflags="-Wl,-subsystem:console -Wl,-WX" ;;
esac
{ as_ac_var=`printf "%s\n" "ac_cv_${wine_arch}_cflags_$llvm_extra_cflags $llvm_cflags" | $as_tr_sh`
{ as_ac_var=`printf "%s\n" "ac_cv_${wine_arch}_cflags_$llvm_extra_cflags $llvm_cflags --no-default-config" | $as_tr_sh`
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $llvm_extra_cflags $llvm_cflags --no-default-config" >&5
printf %s "checking whether $CC supports $llvm_extra_cflags $llvm_cflags --no-default-config... " >&6; }
if eval test \${$as_ac_var+y}
then :
printf %s "(cached) " >&6
else $as_nop
ac_wine_try_cflags_saved=$CFLAGS
ac_wine_try_cflags_saved_exeext=$ac_exeext
CFLAGS="$CFLAGS -nostdlib -nodefaultlibs $llvm_extra_cflags $llvm_cflags --no-default-config"
ac_exeext=".exe"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
void *__os_arm64x_dispatch_ret = 0;
int __cdecl mainCRTStartup(void) { return 0; }
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
eval "$as_ac_var=yes"
else $as_nop
eval "$as_ac_var=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
conftest$ac_exeext conftest.$ac_ext
CFLAGS=$ac_wine_try_cflags_saved
ac_exeext=$ac_wine_try_cflags_saved_exeext
fi
eval ac_res=\$$as_ac_var
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
if eval test \"x\$"$as_ac_var"\" = x"yes"
then :
llvm_extra_cflags="$llvm_extra_cflags --no-default-config"
llvm_extra_ldflags="--no-default-config"
else $as_nop
{ as_ac_var=`printf "%s\n" "ac_cv_${wine_arch}_cflags_$llvm_extra_cflags $llvm_cflags" | $as_tr_sh`
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $llvm_extra_cflags $llvm_cflags" >&5
printf %s "checking whether $CC supports $llvm_extra_cflags $llvm_cflags... " >&6; }
if eval test \${$as_ac_var+y}
@ -10689,11 +10725,19 @@ eval ac_res=\$$as_ac_var
printf "%s\n" "$ac_res" >&6; }
if eval test \"x\$"$as_ac_var"\" = x"yes"
then :
target=$llvm_target
eval "${wine_arch}_DELAYLOADFLAG=\"-Wl,-delayload,\""
as_fn_append ${wine_arch}_EXTRACFLAGS " $llvm_extra_cflags"
CFLAGS="$llvm_extra_cflags $llvm_cflags"
as_fn_append ${wine_arch}_EXTRACFLAGS " $llvm_extra_cflags $llvm_cflags"
else $as_nop
llvm_extra_cflags=""
fi }
fi }
if test -n "$llvm_extra_cflags"
then
target=$llvm_target
eval "${wine_arch}_DELAYLOADFLAG=\"-Wl,-delayload,\""
as_fn_append ${wine_arch}_EXTRACFLAGS " $llvm_extra_cflags"
as_fn_append ${wine_arch}_LDFLAGS " $llvm_extra_ldflags"
CFLAGS="$llvm_extra_cflags $llvm_cflags"
fi
eval "${wine_arch}_TARGET=\$target"
fi

19
configure.ac
View file

@ -893,14 +893,23 @@ do
esac
fi
llvm_extra_cflags="-target $llvm_target -fuse-ld=lld"
llvm_extra_ldflags=""
case $llvm_target in
*windows) llvm_cflags="-Wl,-subsystem:console -Wl,-WX" ;;
esac
WINE_TRY_PE_CFLAGS([$llvm_extra_cflags $llvm_cflags],
[target=$llvm_target
AS_VAR_SET([${wine_arch}_DELAYLOADFLAG],["-Wl,-delayload,"])
AS_VAR_APPEND([${wine_arch}_EXTRACFLAGS],[" $llvm_extra_cflags"])
CFLAGS="$llvm_extra_cflags $llvm_cflags"])
WINE_TRY_PE_CFLAGS([$llvm_extra_cflags $llvm_cflags --no-default-config],
[llvm_extra_cflags="$llvm_extra_cflags --no-default-config"
llvm_extra_ldflags="--no-default-config"],
[WINE_TRY_PE_CFLAGS([$llvm_extra_cflags $llvm_cflags],[],
[llvm_extra_cflags=""])])
if test -n "$llvm_extra_cflags"
then
target=$llvm_target
AS_VAR_SET([${wine_arch}_DELAYLOADFLAG],["-Wl,-delayload,"])
AS_VAR_APPEND([${wine_arch}_EXTRACFLAGS],[" $llvm_extra_cflags"])
AS_VAR_APPEND([${wine_arch}_LDFLAGS],[" $llvm_extra_ldflags"])
CFLAGS="$llvm_extra_cflags $llvm_cflags"
fi
AS_VAR_SET([${wine_arch}_TARGET],[$target])])
AS_VAR_POPDEF([wine_cv_crosscc])