cf/c-function.m4

   1 dnl
   2 dnl $Id$
   3 dnl
   4
   5 dnl
   6 dnl Test for __FUNCTION__
   7 dnl
   8
   9 AC_DEFUN([AC_C___FUNCTION__], [
  10 AC_MSG_CHECKING(for __FUNCTION__)
  11 AC_CACHE_VAL(ac_cv___function__, [
  12 AC_RUN_IFELSE([AC_LANG_SOURCE([[
  13 #include <string.h>
  14
  15 static char *foo(void)
  16 {
  17   return __FUNCTION__;
  18 }
  19
  20 int main(int argc, char **argc)
  21 {
  22   return strcmp(foo(), "foo") != 0;
  23 }
  24 ]])],
  25 [ac_cv___function__=yes],
  26 [ac_cv___function__=no],
  27 [ac_cv___function__=no])])
  28 if test "$ac_cv___function__" = "yes"; then
  29   AC_DEFINE(HAVE___FUNCTION__, 1, [define if your compiler has __FUNCTION__])
  30 fi
  31 AC_MSG_RESULT($ac_cv___function__)
  32 ])
  33