m4/progname.m4

   1 #
   2 # lldp_CHECK___PROGNAME
   3 #
   4 AC_DEFUN([lldp_CHECK___PROGNAME],[
   5   AC_CACHE_CHECK([whether libc defines __progname], lldp_cv_check___progname, [
   6     AC_LINK_IFELSE([AC_LANG_PROGRAM(
   7                      [[#include<stdio.h>]],
   8                      [[ extern char *__progname; printf("%s", __progname); ]])],
   9                      [ lldp_cv_check___progname="yes" ],
  10                      [ lldp_cv_check___progname="no" ])
  11   ])
  12   if test x"$lldp_cv_check___progname" = x"yes"; then
  13      AC_DEFINE([HAVE___PROGNAME], [1], [Define if libc defines __progname])
  14   fi
  15 ])