Optional, version of your target system, not used very much. If CMAKE_SYSTEM_NAME is preset, the CMake variable CMAKE_CROSSCOMPILING is automatically set to TRUE, so this can be used for testing in the CMake files. If your target is an embedded system without OS set CMAKE_SYSTEM_NAME to "Generic". This variable is used for constructing the file names of the platform files like Linux.cmake or Windows-gcc.cmake.
Typical examples are "Linux" and "Windows". the same as CMAKE_SYSTEM_NAME would have if CMake would run on the target system. This one is mandatory, it is the name of the target system, i.e. The following variables have to be preset:
When cross compiling, CMake cannot guess the target system, so you have to preset some CMake variables, e.g.
Pixhawk toolchain cmake command not found how to#
not the native onesĢ Searching and finding external softwareĥ Using executables in the build created during the buildħ Information how to set up various cross compiling toolchains The build process has to use a different set of include files and libraries for building, i.e. Usually the executables don't run on the build host This meansĬMake cannot autodetect the target system SET(QT_QMAKE_EXECUTABLE /opt/qt-embedded/qmake)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) # for libraries and headers in the target directories SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) # search for programs in the build host directories (not necessary) SET(CMAKE_FIND_ROOT_PATH /opt/arm/ppc_74xx /home/rickk/arm_inst) SET(CMAKE_CXX_COMPILER /opt/arm/usr/bin/ppc_74xx-g++) SET(CMAKE_C_COMPILER /opt/arm/usr/bin/ppc_74xx-gcc) Set(CMAKE_FIND_ROOT_PATH /opt/arm /opt/inst)
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