diff --git a/Makefile.libretro b/Makefile.libretro
index bbb1491..f160408 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -48,8 +48,9 @@ ifneq ($(arch),ppc)
    ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
 endif
    CFLAGS += -DHAVE_ASPRINTF
-OSXVER = `sw_vers -productVersion | cut -c 4`
-ifneq ($(OSXVER),9)
+   OSXVER = `sw_vers -productVersion | cut -d. -f 2`
+   OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
+ifeq ($(OSX_LT_MAVERICKS),"YES")
    fpic += -mmacosx-version-min=10.5
 endif
 else ifeq ($(platform), qnx)
@@ -67,10 +68,16 @@ else ifeq ($(platform), ios)
    SHARED := -dynamiclib
    ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
    CFLAGS += -DHAVE_ASPRINTF -DIOS
+
+ifeq ($(IOSSDK),)
+   IOSSDK := $(shell xcrun -sdk iphoneos -show-sdk-path)
+endif
+
    CC = clang -arch armv7 -isysroot $(IOSSDK)
    CFLAGS += -DIOS
-OSXVER = `sw_vers -productVersion | cut -c 4`
-ifneq ($(OSXVER),9)
+   OSXVER = `sw_vers -productVersion | cut -d. -f 2`
+   OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
+ifeq ($(OSX_LT_MAVERICKS),"YES")
    CC +=  -miphoneos-version-min=5.0
    CFLAGS += -miphoneos-version-min=5.0
 endif