-# search_h.m4 serial 2
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# search_h.m4 serial 5
+dnl Copyright (C) 2007-2010 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_SEARCH_H],
[
AC_REQUIRE([gl_SEARCH_H_DEFAULTS])
+ AC_CHECK_HEADERS_ONCE([search.h])
gl_CHECK_NEXT_HEADERS([search.h])
if test $ac_cv_header_search_h = yes; then
HAVE_SEARCH_H=1
HAVE_SEARCH_H=0
fi
AC_SUBST([HAVE_SEARCH_H])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[#include <search.h>
+ ]], [tdelete tfind tsearch twalk])
])
AC_DEFUN([gl_SEARCH_MODULE_INDICATOR],
[
GNULIB_TSEARCH=0; AC_SUBST([GNULIB_TSEARCH])
dnl Assume proper GNU behavior unless another module says otherwise.
- HAVE_TSEARCH=1; AC_SUBST([HAVE_TSEARCH])
+ HAVE_TSEARCH=1; AC_SUBST([HAVE_TSEARCH])
+ REPLACE_TSEARCH=0; AC_SUBST([REPLACE_TSEARCH])
])