contrib/libevent/cmake/CheckFunctionKeywords.cmake

   1 include(CheckCSourceCompiles)
   2
   3 macro(check_function_keywords _wordlist)
   4   set(${_result} "")
   5   foreach(flag ${_wordlist})
   6     string(REGEX REPLACE "[-+/ ()]" "_" flagname "${flag}")
   7     string(TOUPPER "${flagname}" flagname)
   8     set(have_flag "HAVE_${flagname}")
   9     check_c_source_compiles("${flag} void func(); void func() { } int main() { func(); return 0; }" ${have_flag})
  10     if(${have_flag} AND NOT ${_result})
  11       set(${_result} "${flag}")
  12     endif(${have_flag} AND NOT ${_result})
  13   endforeach(flag)
  14 endmacro(check_function_keywords)