set -ffunction-sections option on libretro and libConsole, and use gc-sections in Samples/HelloWorld.

Console/CMakeLists.txt

@@ -26,6 +26,9 @@ add_library(RetroConsole
 	MacUtils.h
 	InitConsole.cc
 	)
+set_target_properties(retrocrt
+	PROPERTIES
+	    COMPILE_OPTIONS -ffunction-sections)
 
 install(TARGETS RetroConsole  DESTINATION lib)
 

Samples/HelloWorld/CMakeLists.txt

@@ -10,3 +10,13 @@ add_application(HelloWorld
 	hello.c
 	CONSOLE
    )
+
+    # make the result as small as possible
+	# by removing unused code (gc-sections)
+	# and by removing macsbug function names
+	# (don't do this when debugging...)
+set_target_properties(HelloWorld
+	PROPERTIES
+	    COMPILE_OPTIONS -ffunction-sections
+		LINK_FLAGS "-Wl,-gc-sections -Wl,--mac-strip-macsbug"
+	)

libretro/CMakeLists.txt

@@ -71,5 +71,8 @@ add_library(retrocrt
 	consolehooks.c
 	${ARCH_FILES}
 )
+set_target_properties(retrocrt
+	PROPERTIES
+	    COMPILE_OPTIONS -ffunction-sections)
 
 install(TARGETS retrocrt  DESTINATION lib)