don't redo dsym for make with no changes and run it in the background

Author: goblinhack

build/build.sh

@@ -495,7 +495,10 @@ case "$MY_OS_NAME" in
         LDLIBS+=" -funwind-tables"
         LDLIBS+=" -rdynamic"
         LDLIBS+=" -Wl,-framework,Opengl"
-        DSYM="dsymutil \${TARGET_GAME}"
+        #
+        # Run in the background as it is slow and is only needed for debugging
+        #
+        DSYM="dsymutil \${TARGET_GAME} &"
 
         if [[ $OPT_DEV2 != "" ]]; then
             C_FLAGS+=" -fsanitize=address -fno-omit-frame-pointer"

src/Makefile.base

@@ -18,7 +18,6 @@ SRC_DIR=.
 .PHONY: all clean clobber
 
 all: $(TARGET_GAME)
-	$(DSYM)
 
 # function to make object names from source files
 # (changes suffix to .o, encodes directory names so subdirectories in build dir aren't necessary)
@@ -82,7 +81,7 @@ $(eval $(BUILD_DIR)/$(call obj_name,$x): $x ;\
 # use file list instead of wildcard for link command so we don't accidentally
 # link with old object files for removed source files
 $(TARGET_GAME): $(OBJ_FILES)
-	cd $(BUILD_DIR); $(CC) $(LDFLAGS) $(OBJECTS) $(LDLIBS) -o $(TARGET_GAME)
+	cd $(BUILD_DIR); $(CC) $(LDFLAGS) $(OBJECTS) $(LDLIBS) -o $(TARGET_GAME); $(DSYM)
 
 tidy:
 	for src in $(CPP_3RD_PARTY_SOURCES) ; do \