[PATCH 0/3] MR4492: configure: Use --no-default-config option on clang when available.

[Jacek Caban (＠jacek)]

Some distros arbitrary flags into clang config files without guarding it for applicable targets, which breaks cross compilation.

[PATCH 1/3] configure: Fix action-if-no handling in WINE_TRY_PE_CFLAGS macro.

[Jacek Caban]

From: Jacek Caban

---
 aclocal.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 11d7e3a3bef..5f1e7bbdbf3 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -218,7 +218,7 @@ int __cdecl mainCRTStartup(void) { return 0; }]])],
                [AS_VAR_SET(ac_var,yes)], [AS_VAR_SET(ac_var,no)])
 CFLAGS=$ac_wine_try_cflags_saved
 ac_exeext=$ac_wine_try_cflags_saved_exeext])
-AS_VAR_IF([ac_var],[yes],[m4_default([$2], [AS_VAR_APPEND([${wine_arch}_EXTRACFLAGS],[" $1"])], [$3])])dnl
+AS_VAR_IF([ac_var],[yes],[m4_default([$2], [AS_VAR_APPEND([${wine_arch}_EXTRACFLAGS],[" $1"])])], [$3])dnl
 AS_VAR_POPDEF([ac_var]) }])

dnl **** Check whether the given MinGW header is available ****

[PATCH 2/3] configure: Use --no-default-config option on clang when available.

[Jacek Caban]

From: Jacek Caban

Some distros arbitrary flags into clang config files without guarding it for applicable targets, which breaks cross compilation.
---
 configure.ac | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 8d92e4c8ab2..074086c586b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -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])

[PATCH 3/3] winegcc: Support --no-default-config argument.

[Jacek Caban]

From: Jacek Caban

---
 tools/winegcc/winegcc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/winegcc/winegcc.c b/tools/winegcc/winegcc.c
index dc085a2ed0f..2ec6863fc25 100644
--- a/tools/winegcc/winegcc.c
+++ b/tools/winegcc/winegcc.c
@@ -1876,6 +1876,10 @@ int main(int argc, char **argv)
                         opts.lib_suffix = option_arg;
                         raw_compiler_arg = raw_linker_arg = 0;
                     }
+                    else if (is_option( &opts, i, "--no-default-config", &option_arg ))
+                    {
+                        raw_compiler_arg = raw_linker_arg = 1;
+                    }
                     break;
             }