From 3b86f54fc739510277f434c68e17a93ab6448ed4 Mon Sep 17 00:00:00 2001
From: Michael Lutz <michi@icosahedron.de>
Date: Mon, 1 Apr 2019 00:55:37 +0200
Subject: [PATCH] Fix: [OSX] .mm files are C++ files, not C files.

---
 Makefile.src.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile.src.in b/Makefile.src.in
index a64a5d5dff..3a4db6c171 100644
--- a/Makefile.src.in
+++ b/Makefile.src.in
@@ -139,7 +139,7 @@ $(OBJS_CPP:%.o=%.d): %.d: $(SRC_DIR)/%.cpp $(FILE_DEP)
 
 $(OBJS_MM:%.o=%.d): %.d: $(SRC_DIR)/%.mm $(FILE_DEP)
 	$(E) '$(STAGE) DEP $(<:$(SRC_DIR)/%.mm=%.mm)'
-	$(Q)$(CC_HOST) $(CFLAGS) -MM $< | sed 's@^$(@F:%.d=%.o):@$@ $(@:%.d=%.o):@' > $@
+	$(Q)$(CXX_HOST) $(CFLAGS) $(CXXFLAGS) -MM $< | sed 's@^$(@F:%.d=%.o):@$@ $(@:%.d=%.o):@' > $@
 
 $(OBJS_RC:%.o=%.d): %.d: $(SRC_DIR)/%.rc $(FILE_DEP)
 	$(E) '$(STAGE) DEP $(<:$(SRC_DIR)/%.rc=%.rc)'
@@ -249,7 +249,7 @@ $(filter %sse4.o, $(OBJS_CPP)): %.o: $(SRC_DIR)/%.cpp $(DEP_MASK) $(FILE_DEP)
 
 $(OBJS_MM): %.o: $(SRC_DIR)/%.mm $(DEP_MASK) $(FILE_DEP)
 	$(E) '$(STAGE) Compiling $(<:$(SRC_DIR)/%.mm=%.mm)'
-	$(Q)$(CC_HOST) $(CFLAGS) -c -o $@ $<
+	$(Q)$(CXX_HOST) $(CFLAGS) $(CXXFLAGS) -c -o $@ $<
 
 $(OBJS_RC): %.o: $(SRC_DIR)/%.rc $(FILE_DEP)
 	$(E) '$(STAGE) Compiling resource $(<:$(SRC_DIR)/%.rc=%.rc)'