Improved cmake build script for Android:
- Error out when Ant or android can't be found
- Attempt to find the NDK toolchain binaries on Windows and Linux instead of assuming Linux
- Use find_program instead of find_path to find some binaries
- ANDROID_SDK now refers to the Android SDK base directory
- Fixed detection of android.bat on Windows
- Output of the android tool is now shown so that success/failure is visible
FIND_PATH(GMP_INCLUDE_DIR gmp.h)
FIND_LIBRARY(GMP_LIBRARY NAMES GMP gmp)
IF (GMP_INCLUDE_DIR AND GMP_LIBRARY)
SET(GMP_FOUND TRUE)
ENDIF (GMP_INCLUDE_DIR AND GMP_LIBRARY)
IF (GMP_FOUND)
IF (NOT GMP_FIND_QUIETLY)
MESSAGE(STATUS "Found GMP: ${GMP_LIBRARY}")
ENDIF (NOT GMP_FIND_QUIETLY)
ELSE (GMP_FOUND)
IF (GMP_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Could not find GMP")
ENDIF (GMP_FIND_REQUIRED)
ENDIF (GMP_FOUND)