Change from jlunder:

Minor configuration changes to smooth the build process, make it work on mac.

Makefile.android

 # Makefile to build the SDL library
 
-include ./android/config.cfg #get ANDROID_NDK
+include ./android/config.cfg #get ANDROID_NDK, ANDROID_NDK_HOST
 
-TOOLS_PATH=$(ANDROID_NDK)/toolchains/arm-eabi-4.4.0/prebuilt/darwin-x86/bin
+TOOLS_PATH=$(ANDROID_NDK)/toolchains/arm-eabi-4.4.0/prebuilt/$(ANDROID_NDK_HOST)/bin
 ANDROID_INCLUDES = -I$(ANDROID_NDK)/platforms/android-4/arch-arm/usr/include 
 INCLUDE = -I./include
 CFLAGS  = -g -O2 -fno-short-enums $(INCLUDE) $(ANDROID_INCLUDES) -DANDROID -DANDROID_NDK -static

android/config.cfg

-ANDROID_NDK=/Users/hercules/tmp/android-ndk-r5

android/config.cfg.example

+# This file sets up paths needed to find the NDK build tools.
+# Edit it appropriately for your configuration and save it as "config.cfg".
+ANDROID_NDK := </absolute/path/to/android/ndk>
+ANDROID_NDK_HOST := <host-os> # "linux-x86" for linux, "darwin-x86" for mac