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changeset 7903:42e2f1ada185

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Enforce that GETTIMEOFDAY_REPLACEMENT=0 is only expanded once.
author Bruno Haible <bruno@clisp.org>
date Fri, 19 Jan 2007 02:04:14 +0000
parents 5fa14d8c0b45
children 77836a2a55f0
files ChangeLog m4/sys_time_h.m4
diffstat 2 files changed, 12 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2007-01-18  Bruno Haible  <bruno@clisp.org>
 
+	* m4/sys_time_h.m4 (gl_HEADER_SYS_TIME_H_BODY): Renamed from
+	gl_HEADER_SYS_TIME_H.
+	(gl_HEADER_SYS_TIME_H): New macro.
+
 	* lib/sys_time_.h: Test GETTIMEOFDAY_REPLACEMENT instead of
 	HAVE_GETTIMEOFDAY_POSIX_SIGNATURE and GETTIMEOFDAY_CLOBBERS_LOCALTIME.
 	* m4/gettimeofday.m4 (gl_FUNC_GETTIMEOFDAY,
--- a/m4/sys_time_h.m4
+++ b/m4/sys_time_h.m4
@@ -9,6 +9,14 @@
 
 AC_DEFUN([gl_HEADER_SYS_TIME_H],
 [
+  dnl Use AC_REQUIRE here, so that the GETTIMEOFDAY_REPLACEMENT=0 statement
+  dnl below is expanded once only, before all GETTIMEOFDAY_REPLACEMENT=1
+  dnl statements that occur in other macros.
+  AC_REQUIRE([gl_HEADER_SYS_TIME_H_BODY])
+])
+
+AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY],
+[
   AC_REQUIRE([AC_C_RESTRICT])
   AC_CHECK_HEADERS_ONCE([sys/time.h])