Make simulator compile on MacOS

Tested on MacOS Sequoia (Apple Silicon) with the
latest Xcode command line tools, gcc 14
(Homebrew GCC 14.2.0_1) and sdl2 (Homebrew 2.30.9)

Make sure 'gcc' (and 'gcc-ar') is in your PATH
ahead of the Xcode-provided "gcc"(clang). E.g.
by setting up symlinks in /usr/local/bin that
point to gcc-14 and gcc-ar-14.

Notes:
- The appropriate bmp from uisimulator/bitmaps
  has to be manually copied to your build folder
  and renamed to UI256.bmp, if you want the sim
  background to be displayed

Change-Id: I559f33d2165065f913f30c016b85906af380fb81

lib/rbcodec/codecs/codecs.make

@@ -26,7 +26,11 @@ CODECFLAGS := $(CFLAGS) $(RBCODEC_CFLAGS) -fstrict-aliasing \
 			 -I$(RBCODECLIB_DIR)/codecs -I$(RBCODECLIB_DIR)/codecs/lib -DCODEC
 
 ifdef APP_TYPE
- CODECLDFLAGS = $(SHARED_LDFLAGS) -Wl,--gc-sections -Wl,-Map,$(CODECDIR)/$*.map
+ ifeq ($(UNAME), Darwin)
+  CODECLDFLAGS = $(SHARED_LDFLAGS) -Wl,-map,$(CODECDIR)/$*.map
+ else
+  CODECLDFLAGS = $(SHARED_LDFLAGS) -Wl,--gc-sections -Wl,-Map,$(CODECDIR)/$*.map
+ endif
  CODECFLAGS += $(SHARED_CFLAGS) # <-- from Makefile
 else
  CODECLDFLAGS = -T$(CODECLINK_LDS) -Wl,--gc-sections -Wl,-Map,$(CODECDIR)/$*.map

lib/rbcodec/codecs/lib/codeclib.h

@@ -47,6 +47,13 @@ void* codec_calloc(size_t nmemb, size_t size);
 void* codec_realloc(void* ptr, size_t size);
 void codec_free(void* ptr);
 
+#ifdef __APPLE__
+#undef memcpy
+#undef strcat
+#undef memset
+#undef memmove
+#undef strcpy
+#endif
 void *memcpy(void *dest, const void *src, size_t n);
 void *memset(void *s, int c, size_t n);
 int memcmp(const void *s1, const void *s2, size_t n);