Merge commit '9f57f134c19773d54269b6cb9ee455ff87c2e9e1'

* commit '9f57f134c19773d54269b6cb9ee455ff87c2e9e1':
  configure: ObjC support

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

1 files changed, 45 insertions, 9 deletions

diff --git a/configure b/configure
index aa21b39261..d61c2aa4c2 100755
--- a/configure
+++ b/configure
@@ -316,6 +316,7 @@ Toolchain options:
   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
   --cc=CC                  use C compiler CC [$cc_default]
   --cxx=CXX                use C compiler CXX [$cxx_default]
+  --objcc=OCC              use ObjC compiler OCC [$cc_default]
   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
   --ld=LD                  use linker LD [$ld_default]
   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
@@ -331,6 +332,7 @@ Toolchain options:
   --host-os=OS             compiler host OS [$target_os]
   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
+  --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
@@ -805,6 +807,10 @@ add_asflags(){
     append ASFLAGS $($asflags_filter "$@")
 }
 
+add_objcflags(){
+    append OBJCFLAGS $($objcflags_filter "$@")
+}
+
 add_ldflags(){
     append LDFLAGS $($ldflags_filter "$@")
 }
@@ -875,11 +881,11 @@ check_cxx(){
     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 }
 
-check_oc(){
-    log check_oc "$@"
+check_objcc(){
+    log check_objcc "$@"
     cat > $TMPM
     log_file $TMPM
-    check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
+    check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 }
 
 check_cpp(){
@@ -990,6 +996,19 @@ int x;
 EOF
 }
 
+test_objcflags(){
+    log test_cflags "$@"
+    set -- $($cflags_filter "$@")
+    check_objcc "$@" <<EOF
+int x;
+EOF
+}
+
+check_objcflags(){
+    log check_cflags "$@"
+    test_objcflags "$@" && add_objcflags "$@"
+}
+
 test_ldflags(){
     log test_ldflags "$@"
     check_ld "cc" "$@" <<EOF
@@ -1027,8 +1046,8 @@ int x;
 EOF
 }
 
-check_header_oc(){
-    log check_header_oc "$@"
+check_header_objcc(){
+    log check_header_objcc "$@"
     rm -f -- "$TMPO"
     header=$1
     shift
@@ -1036,7 +1055,7 @@ check_header_oc(){
     {
        echo "#include <$header>"
        echo "int main(void) { return 0; }"
-    } | check_oc && check_stat "$TMPO" && enable_safe $headers
+    } | check_objcc && check_stat "$TMPO" && enable_safe $headers
 }
 
 check_func(){
@@ -2061,6 +2080,7 @@ CMDLINE_SET="
     assert_level
     build_suffix
     cc
+    objcc
     cpu
     cross_prefix
     custom_allocator
@@ -2105,6 +2125,7 @@ CMDLINE_SET="
 CMDLINE_APPEND="
     extra_cflags
     extra_cxxflags
+    extra_objcflags
     host_cppflags
 "
 
@@ -3026,6 +3047,9 @@ CC_E='-E -o $@'
 CC_O='-o $@'
 CXX_C='-c'
 CXX_O='-o $@'
+OBJCC_C='-c'
+OBJCC_E='-E -o $@'
+OBJCC_O='-o $@'
 LD_O='-o $@'
 LD_LIB='-l%'
 LD_PATH='-L'
@@ -3850,16 +3874,22 @@ test -n "$cc_type" && enable $cc_type ||
     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
 
 : ${as_default:=$cc}
+: ${objcc_default:=$cc}
 : ${dep_cc_default:=$cc}
 : ${ld_default:=$cc}
 : ${host_ld_default:=$host_cc}
-set_default ar as dep_cc ld host_ld windres
+set_default ar as objcc dep_cc ld host_ld windres
 
 probe_cc as "$as"
 asflags_filter=$_flags_filter
 add_asflags $_flags $_cflags
 set_ccvars AS
 
+probe_cc objcc "$objcc"
+objcflags_filter=$_flags_filter
+add_objcflags $_flags $_cflags
+set_ccvars OBJC
+
 probe_cc ld "$ld"
 ldflags_filter=$_flags_filter
 add_ldflags $_flags $_ldflags
@@ -3899,6 +3929,7 @@ fi
 
 add_cflags $extra_cflags
 add_cxxflags $extra_cxxflags
+add_objcflags $extra_objcflags
 add_asflags $extra_cflags
 
 if test -n "$sysroot"; then
@@ -5335,7 +5366,7 @@ for func in $COMPLEX_FUNCS; do
 done
 
 # these are off by default, so fail if requested and not available
-enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
+enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
@@ -5491,7 +5522,7 @@ enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -l
                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
                                die "ERROR: openssl not found"; }
-enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
+enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
 
 # libdc1394 check
 if enabled libdc1394; then
@@ -6154,6 +6185,7 @@ INTRINSICS=$intrinsics
 CC=$cc
 CXX=$cxx
 AS=$as
+OBJCC=$objcc
 LD=$ld
 DEPCC=$dep_cc
 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
@@ -6171,9 +6203,13 @@ LN_S=$ln_s
 CPPFLAGS=$CPPFLAGS
 CFLAGS=$CFLAGS
 CXXFLAGS=$CXXFLAGS
+OBJCFLAGS=$OBJCFLAGS
 ASFLAGS=$ASFLAGS
 AS_C=$AS_C
 AS_O=$AS_O
+OBJCC_C=$OBJCC_C
+OBJCC_E=$OBJCC_E
+OBJCC_O=$OBJCC_O
 CC_C=$CC_C
 CC_E=$CC_E
 CC_O=$CC_O