AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([gl_GETOPT_SUBSTITUTE])
AC_CHECK_DECLS([program_invocation_name, program_invocation_short_name],,,
[#include <errno.h>])
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([gl_GETOPT_SUBSTITUTE])
AC_CHECK_DECLS([program_invocation_name, program_invocation_short_name],,,
[#include <errno.h>])