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-rw-r--r--m4/getdate.m416
1 files changed, 15 insertions, 1 deletions
diff --git a/m4/getdate.m4 b/m4/getdate.m4
index 5b2f77f23..2981f139d 100644
--- a/m4/getdate.m4
+++ b/m4/getdate.m4
@@ -1,9 +1,22 @@
-# getdate.m4 serial 7
+# getdate.m4 serial 8
dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
+AC_DEFUN([gl_C_COMPOUND_LITERALS],
+[
+ AC_CACHE_CHECK([for compound literals], gl_cv_compound_literals,
+ [AC_TRY_COMPILE([struct s { int i, j; }; struct s s = (struct s) { 1, 2 };],
+ [struct s t = (struct s) { 3, 4 };],
+ gl_cv_compound_literals=yes,
+ gl_cv_compound_literals=no)])
+ if test $gl_cv_compound_literals = yes; then
+ AC_DEFINE(HAVE_COMPOUND_LITERALS, 1,
+ [Define if you have compound literals.])
+ fi
+])
+
AC_DEFUN([gl_GETDATE],
[
AC_LIBSOURCES([getdate.h, getdate.y])
@@ -15,6 +28,7 @@ AC_DEFUN([gl_GETDATE],
dnl Prerequisites of lib/getdate.y.
AC_REQUIRE([gl_BISON])
+ AC_REQUIRE([gl_C_COMPOUND_LITERALS])
AC_REQUIRE([AC_HEADER_STDC])
AC_CHECK_FUNCS_ONCE(isascii)
AC_STRUCT_TIMEZONE