summaryrefslogtreecommitdiff
path: root/m4/getdate.m4
blob: 2981f139d7e5d33ba4f0742681c45b2f9813f73a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
# 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])
  AC_LIBOBJ([getdate])

  dnl Prerequisites of lib/getdate.h.
  AC_REQUIRE([AM_STDBOOL_H])
  AC_REQUIRE([gl_TIMESPEC])

  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
  AC_REQUIRE([gl_CLOCK_TIME])
  AC_REQUIRE([gl_TM_GMTOFF])
])