2017-01-27 16:43:49 -05:00
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# Cross-compiling requires CMake 2.6 or newer. Example:
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# cmake .. -DCMAKE_TOOLCHAIN_FILE=../XCompile-Android.txt -DHOST=arm-linux-androideabi
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# Where 'arm-linux-androideabi' is the host prefix for the cross-compiler. If
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# you already have a toolchain file setup, you may use that instead of this
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# file. Make sure to set CMAKE_FIND_ROOT_PATH to where the NDK toolchain was
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# installed (e.g. "$ENV{HOME}/toolchains/arm-linux-androideabi-r10c-21").
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# the name of the target operating system
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SET(CMAKE_SYSTEM_NAME Linux)
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# which compilers to use for C and C++
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2021-09-25 02:38:11 -04:00
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SET(CMAKE_C_COMPILER "${HOST}-clang")
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SET(CMAKE_CXX_COMPILER "${HOST}-clang++")
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2017-01-27 16:43:49 -05:00
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2020-05-13 22:13:57 -04:00
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set(CMAKE_SYSTEM_PROCESSOR ${ARCH})
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2021-10-04 06:15:21 -04:00
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# Starting NDK21 it enables NEON by default on 32-bit ARM target
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# Disable it to support more devices
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if("${ARCH}" STREQUAL "arm")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=vfpv3-d16")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=vfpv3-d16")
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endif()
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2017-01-27 16:43:49 -05:00
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# here is the target environment located
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SET(CMAKE_FIND_ROOT_PATH $ENV{NDK_TOOLCHAIN_PATH})
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# here is where stuff gets installed to
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SET(CMAKE_INSTALL_PREFIX "${CMAKE_FIND_ROOT_PATH}" CACHE STRING "Install path prefix, prepended onto install directories." FORCE)
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# adjust the default behaviour of the FIND_XXX() commands:
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# search headers and libraries in the target environment, search
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# programs in the host environment
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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# set env vars so that pkg-config will look in the appropriate directory for
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# .pc files (as there seems to be no way to force using ${HOST}-pkg-config)
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set(ENV{PKG_CONFIG_LIBDIR} "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig")
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set(ENV{PKG_CONFIG_PATH} "")
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