1# 2# CMake Toolchain file for crosscompiling on ARM. 3# 4# This can be used when running cmake in the following way: 5# cd build/ 6# cmake .. -DCMAKE_TOOLCHAIN_FILE=../cross-arm-linux-gnueabihf.cmake 7# 8 9set(CROSS_PATH /opt/libwebsockets_android/android-toolchain-arm) 10 11# Target operating system name. 12set(CMAKE_SYSTEM_NAME Android) 13 14# Target build dynamic libs. 15set(BUILD_SHARED_LIBS ON) 16 17# Name of C compiler. 18set(CMAKE_C_COMPILER "${CROSS_PATH}/bin/arm-linux-androideabi-gcc") 19set(CMAKE_CXX_COMPILER "${CROSS_PATH}/bin/arm-linux-androideabi-g++") 20 21# 22# Different build system distros set release optimization level to different 23# things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3 24# here. Actually the build system's local policy is completely unrelated to 25# our desire for cross-build release optimization policy for code built to run 26# on a completely different target than the build system itself. 27# 28# Since this goes last on the compiler commandline we have to override it to a 29# sane value for cross-build here. Notice some gcc versions enable broken 30# optimizations with -O3. 31# 32if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release) 33 set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2") 34 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2") 35endif() 36 37# Where to look for the target environment. (More paths can be added here) 38set(CMAKE_FIND_ROOT_PATH "${CROSS_PATH}") 39 40# Adjust the default behavior of the FIND_XXX() commands: 41# search programs in the host environment only. 42set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 43 44# Search headers and libraries in the target environment only. 45set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 46set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 47