tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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CheckConstExists.cmake (815B)

      1 include(CheckCSourceCompiles)
      2 
      3 macro(check_const_exists CONST FILES VARIABLE)
      4  if (NOT DEFINED ${VARIABLE})
      5    set(check_const_exists_source "")
      6    foreach(file ${FILES})
      7      set(check_const_exists_source
      8          "${check_const_exists_source}
      9          #include <${file}>")
     10    endforeach()
     11    set(check_const_exists_source
     12        "${check_const_exists_source}
     13        int main() { (void)${CONST}; return 0; }")
     14 
     15    check_c_source_compiles("${check_const_exists_source}" ${VARIABLE})
     16 
     17    if (${${VARIABLE}})
     18      set(${VARIABLE} 1 CACHE INTERNAL "Have const ${CONST}")
     19      message(STATUS "Looking for ${CONST} - found")
     20    else()
     21      set(${VARIABLE} 0 CACHE INTERNAL "Have const ${CONST}")
     22      message(STATUS "Looking for ${CONST} - not found")
     23    endif()
     24  endif()
     25 endmacro(check_const_exists)