| # - Determines the target architecture of the compilation |
| # |
| # This function checks the architecture that will be built by the compiler |
| # and sets a variable to the architecture |
| # |
| # determine_target_architecture(<OUTPUT_VAR>) |
| # |
| # - Example |
| # |
| # include(DetermineTargetArchitecture) |
| # determine_target_architecture(PROJECT_NAME_ARCHITECTURE) |
| |
| if(__determine_target_architecture) |
| return() |
| endif() |
| set(__determine_target_architecture INCLUDED) |
| |
| function(determine_target_architecture FLAG) |
| if (MSVC) |
| if("${MSVC_C_ARCHITECTURE_ID}" STREQUAL "X86") |
| set(ARCH "i686") |
| elseif("${MSVC_C_ARCHITECTURE_ID}" STREQUAL "x64") |
| set(ARCH "x86_64") |
| elseif("${MSVC_C_ARCHITECTURE_ID}" STREQUAL "ARM") |
| set(ARCH "arm") |
| else() |
| message(FATAL_ERROR "Failed to determine the MSVC target architecture: ${MSVC_C_ARCHITECTURE_ID}") |
| endif() |
| else() |
| execute_process( |
| COMMAND ${CMAKE_C_COMPILER} -dumpmachine |
| RESULT_VARIABLE RESULT |
| OUTPUT_VARIABLE ARCH |
| ERROR_QUIET |
| ) |
| if (RESULT) |
| message(FATAL_ERROR "Failed to determine target architecture triplet: ${RESULT}") |
| endif() |
| string(REGEX MATCH "([^-]+).*" ARCH_MATCH ${ARCH}) |
| if (NOT CMAKE_MATCH_1 OR NOT ARCH_MATCH) |
| message(FATAL_ERROR "Failed to match the target architecture triplet: ${ARCH}") |
| endif() |
| set(ARCH ${CMAKE_MATCH_1}) |
| endif() |
| message(STATUS "Target architecture - ${ARCH}") |
| set(FLAG ${ARCH} PARENT_SCOPE) |
| endfunction() |
