diff --git a/Makefile b/Makefile
index 855ee6f..bd080e5 100644
--- a/Makefile
+++ b/Makefile
@@ -33,7 +33,7 @@ endif
 
 # Refuse all other platforms as a firewall against PEBKAC
 # (You'll need some #ifdef for your unsupported  plattform!)
-ifeq ($(findstring $(ARCH), i386 x86_64 sparc64),)
+ifeq ($(findstring $(ARCH), i386 x86_64 sparc64 ia64),)
 $(error arch $(ARCH) is currently not supported)
 endif
 
diff --git a/src/savegame/savegame.c b/src/savegame/savegame.c
index 873022a..1860030 100644
--- a/src/savegame/savegame.c
+++ b/src/savegame/savegame.c
@@ -66,6 +66,10 @@
  */
 #if defined(__FreeBSD__)
  #define OS "FreeBSD"
+#elif defined(__APPLE__)
+ #define OS "MacOS X"
+#elif defined(__OpenBSD__)
+ #define OS "OpenBSD"
 #elif defined(__linux__)
  #define OS "Linux"
 #elif defined(_WIN32)
@@ -78,6 +82,10 @@
  #define ARCH "i386"
 #elif defined(__x86_64__)
  #define ARCH "amd64"
+#elif defined(__ia64__)
+ #define ARCH "ia64"
+#elif defined(__sparc__)
+ #define ARCH "sparc64"
 #else
  #define ARCH "unknown"
 #endif