Mercurial > gnulib
view m4/parse-datetime.m4 @ 40196:e63f5d3edab5
relocatable-prog: Update documentation.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 24 Feb 2019 01:49:15 +0100 |
parents | b06060465f09 |
children |
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# parse-datetime.m4 serial 22 dnl Copyright (C) 2002-2006, 2008-2019 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. dnl Define HAVE_COMPOUND_LITERALS if the C compiler supports compound literals dnl as in ISO C99. dnl Note that compound literals such as (struct s) { 3, 4 } can be used for dnl initialization of stack-allocated variables, but are not constant dnl expressions and therefore cannot be used as initializer for global or dnl static variables (even though gcc supports this in pre-C99 mode). AC_DEFUN([gl_C_COMPOUND_LITERALS], [ AC_CACHE_CHECK([for compound literals], [gl_cv_compound_literals], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[struct s { int i, j; };]], [[struct s t = (struct s) { 3, 4 }; if (t.i != 0) return 0;]])], 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_PARSE_DATETIME], [ dnl Prerequisites of lib/parse-datetime.h. AC_REQUIRE([AM_STDBOOL_H]) AC_REQUIRE([gl_TIMESPEC]) dnl Prerequisites of lib/parse-datetime.y. AC_REQUIRE([gl_BISON]) AC_REQUIRE([gl_C_COMPOUND_LITERALS]) AC_STRUCT_TIMEZONE AC_REQUIRE([gl_CLOCK_TIME]) AC_REQUIRE([gl_TM_GMTOFF]) ])