X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=m4%2Fsearch_h.m4;h=f656fda77488e6c392b5a903cd679d6f584c7409;hb=ff4fa73a6d84abfdd1b3c463e381ee47e512f418;hp=0dd0d4bc5a5ee81d8065121e490d0ccd794f4040;hpb=e7100ae48702b41167615d0dba263125114216ef;p=gnulib.git

diff --git a/m4/search_h.m4 b/m4/search_h.m4
index 0dd0d4bc5..f656fda77 100644
--- a/m4/search_h.m4
+++ b/m4/search_h.m4
@@ -1,5 +1,5 @@
-# search_h.m4 serial 4
-dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
+# search_h.m4 serial 8
+dnl Copyright (C) 2007-2011 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.
@@ -7,7 +7,6 @@ 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
@@ -15,13 +14,20 @@ AC_DEFUN([gl_SEARCH_H],
     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],
 [
   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
   AC_REQUIRE([gl_SEARCH_H_DEFAULTS])
-  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+  dnl Define it also as a C macro, for the benefit of the unit tests.
+  gl_MODULE_INDICATOR_FOR_TESTS([$1])
 ])
 
 AC_DEFUN([gl_SEARCH_H_DEFAULTS],