kc3-lang/kc3

diff --git a/config.subr b/config.subr
index 0974221..569b5d8 100644
--- a/config.subr
+++ b/config.subr
@@ -55,14 +55,7 @@ c2prog() {
 }
 
 config_asan() {
-    echo "int main (void) { return 0; }" > .config_asan.c
-    if $LIBTOOL --tag CC --mode link $CC $CFLAGS .config_asan.c $LDFLAGS -lasan -o /dev/null 2>/dev/null; then
-        HAVE_ASAN=true
-    else
-        HAVE_ASAN=false
-    fi
-    rm .config_asan.c
-    echo "HAVE_ASAN = $HAVE_ASAN" >> ${CONFIG_MK}
+    config_lib_have ASAN -lasan
 }
 
 config_define () {
@@ -104,7 +97,7 @@ config_include_have() {
     echo "/* generated by configure */" > "$OUT_C"
     echo "$@" >> "$OUT_C"
     echo "int main (void) { return 0; }" >> "$OUT_C"
-    if $LIBTOOL --tag CC --mode link ${CC} ${CPPFLAGS} ${CFLAGS} "$OUT_C" ${LIBS} $@ -o "$OUT"; then
+    if $LIBTOOL --tag CC --mode link ${CC} ${CPPFLAGS} ${CFLAGS} "$OUT_C" ${LIBS} -o "$OUT"; then
         eval "HAVE_$NAME=true"
         echo "HAVE_$NAME = true" >> ${CONFIG_MK}
     else
@@ -121,7 +114,7 @@ config_lib() {
     OUT=".config_$NAME"
     echo "/* generated by configure */" > "$OUT_C"
     echo "int main (void) { return 0; }" >> "$OUT_C"
-    if $LIBTOOL --tag CC --mode link ${CC} ${CPPFLAGS} ${CFLAGS} "$OUT_C" ${LDFLAGS} ${LIBS} $@ -o "$OUT"; then
+    if $LIBTOOL --tag CC --mode link ${CC} ${CPPFLAGS} ${CFLAGS} "$OUT_C" ${LDFLAGS} ${LIBS} $@ -o "$OUT" >/dev/null 2>&1; then
         LIBS="$LIBS $@"
     fi
     rm -f "$OUT" "$OUT_C"
@@ -134,7 +127,7 @@ config_lib_have() {
     OUT=".config_$NAME"
     echo "/* generated by configure */" > "$OUT_C"
     echo "int main (void) { return 0; }" >> "$OUT_C"
-    if $LIBTOOL --tag CC --mode link ${CC} ${CPPFLAGS} ${CFLAGS} "$OUT_C" ${LIBS} $@ -o "$OUT"; then
+    if $LIBTOOL --tag CC --mode link ${CC} ${CPPFLAGS} ${CFLAGS} "$OUT_C" ${LIBS} $@ -o "$OUT" >/dev/null 2>&1; then
         eval "HAVE_$NAME=true"
         echo "HAVE_$NAME = true" >> ${CONFIG_MK}
     else
@@ -155,6 +148,54 @@ config_no_undefined() {
     rm -f "$OUT" "$OUT_C"
 }
 
+config_objc_include_have() {
+    NAME="$1"
+    shift
+    OUT_M=".config_$NAME.m"
+    OUT=".config_$NAME"
+    echo "/* generated by configure */" > "$OUT_M"
+    echo "$@" >> "$OUT_M"
+    echo "int main (void) { return 0; }" >> "$OUT_M"
+    if $LIBTOOL --tag CC --mode link ${OBJCC} ${CPPFLAGS} ${OBJCFLAGS} "$OUT_M" ${LIBS} -o "$OUT" >/dev/null 2>&1; then
+        eval "HAVE_$NAME=true"
+        echo "HAVE_$NAME = true" >> ${CONFIG_MK}
+    else
+        eval "HAVE_$NAME=false"
+        echo "HAVE_$NAME = false" >> ${CONFIG_MK}
+    fi
+    rm -f "$OUT" "$OUT_M"
+}
+
+config_objc_lib() {
+    NAME="$1"
+    shift
+    OUT_M=".config_$NAME.m"
+    OUT=".config_$NAME"
+    echo "/* generated by configure */" > "$OUT_M"
+    echo "int main (void) { return 0; }" >> "$OUT_M"
+    if $LIBTOOL --tag CC --mode link ${OBJCC} ${CPPFLAGS} ${OBJCFLAGS} "$OUT_M" ${LDFLAGS} ${LIBS} $@ -o "$OUT" >/dev/null 2>&1; then
+        LIBS="$LIBS $@"
+    fi
+    rm -f "$OUT" "$OUT_M"
+}
+
+config_objc_lib_have() {
+    NAME="$1"
+    shift
+    OUT_M=".config_$NAME.m"
+    OUT=".config_$NAME"
+    echo "/* generated by configure */" > "$OUT_M"
+    echo "int main (void) { return 0; }" >> "$OUT_M"
+    if $LIBTOOL --tag CC --mode link ${OBJCC} ${CPPFLAGS} ${OBJCFLAGS} "$OUT_M" ${LIBS} $@ -o "$OUT" >/dev/null 2>&1; then
+        eval "HAVE_$NAME=true"
+        echo "HAVE_$NAME = true" >> ${CONFIG_MK}
+    else
+        eval "HAVE_$NAME=false"
+        echo "HAVE_$NAME = false" >> ${CONFIG_MK}
+    fi
+    rm -f "$OUT" "$OUT_M"
+}
+
 env_reset() {
     CPPFLAGS="$ENV_CPPFLAGS"
     CFLAGS="$ENV_CFLAGS"
diff --git a/libc3/window/cairo/configure b/libc3/window/cairo/configure
index 07e9b07..1d2d9a8 100755
--- a/libc3/window/cairo/configure
+++ b/libc3/window/cairo/configure
@@ -38,6 +38,7 @@ OBJECTS_DEBUG="$(c2ext .debug.lo "$SOURCES")"
 # Common config for all targets
 CPPFLAGS="-I../../../libffi/include -I../../.. $CPPFLAGS"
 CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
+OBJCFLAGS="$CFLAGS -W -Wall -Werror"
 LDFLAGS="--shared ${LDFLAGS}"
 LIBS="$LIBS -rpath ${PREFIX}/lib"
 config_asan
@@ -48,7 +49,7 @@ pkg_config freetype2
 pkg_config xkbcommon
 config_lib_have COCOA -framework Cocoa
 if $HAVE_COCOA; then
-    config_include_have COCOA '#import <Cocoa/Cocoa.h>'
+    config_objc_include_have COCOA '#import <Cocoa/Cocoa.h>'
 fi
 config_define PREFIX "\"${PREFIX}\""
 
diff --git a/libc3/window/cairo/quartz/configure b/libc3/window/cairo/quartz/configure
index 8fd6d69..b8341d0 100755
--- a/libc3/window/cairo/quartz/configure
+++ b/libc3/window/cairo/quartz/configure
@@ -50,6 +50,7 @@ echo "OBJECTS_DEBUG = $OBJECTS_DEBUG" >> ${CONFIG_MK}
 # Common config for all targets
 CPPFLAGS="$CPPFLAGS -I../../../../libffi/include -I../../../.."
 CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
+OBJCFLAGS="$CFLAGS -W -Wall -Werror"
 LDFLAGS="--shared $LDFLAGS"
 LIBS="$LIBS"
 config_asan
@@ -57,7 +58,6 @@ config_gnu
 pkg_config cairo
 config_lib COCOA -framework Cocoa
 pkg_config xkbcommon
-LIBS="$LIBS"
 
 # Asan config
 CFLAGS_ASAN="$CFLAGS -fsanitize=address -O1 -fno-omit-frame-pointer -g"
diff --git a/libc3/window/cairo/quartz/demo/configure b/libc3/window/cairo/quartz/demo/configure
index 744a9fb..d0ef185 100755
--- a/libc3/window/cairo/quartz/demo/configure
+++ b/libc3/window/cairo/quartz/demo/configure
@@ -74,6 +74,7 @@ echo "OBJECTS_DEBUG = $OBJECTS_DEBUG" >> ${CONFIG_MK}
 # Common config for all targets
 CPPFLAGS="$CPPFLAGS -I../../../../../libffi/include -I../../../../.."
 CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
+OBJCFLAGS="$CFLAGS -W -Wall -Werror"
 LDFLAGS="$LDFLAGS -framework Cocoa"
 LIBS="$LIBS"
 config_asan