# HG changeset patch
# User Jim Meyering <jim@meyering.net>
# Date 1170010501 0
# Node ID d12a7f6db48181ec80d7c5221b582d2fd6cc5f5f
# Parent  8791d13c86ff421cbe4a4944ed5e4f74e09df358
* modules/sys_time (Makefile.am): Build sys/time.h only when it's the
value of $(SYS_TIME_H).
[MOSTLYCLEANFILES]: Now that sys/time.h is created only when needed,
remove it conditionally, too.
* m4/sys_time_h.m4 (gl_HEADER_SYS_TIME_H_BODY): Set SYS_TIME_H.
* m4/gettimeofday.m4 (gl_FUNC_GETTIMEOFDAY):
(gl_FUNC_GETTIMEOFDAY_CLOBBER): Set SYS_TIME_H when setting
GETTIMEOFDAY_REPLACEMENT to 1.

2007-01-28  Bruno Haible  <bruno@clisp.org>

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2007-01-28  Bruno Haible  <bruno@clisp.org>
+
+	* modules/sys_time (Makefile.am): Build sys/time.h only when it's the
+	value of $(SYS_TIME_H).
+	[MOSTLYCLEANFILES]: Now that sys/time.h is created only when needed,
+	remove it conditionally, too.
+	* m4/sys_time_h.m4 (gl_HEADER_SYS_TIME_H_BODY): Set SYS_TIME_H.
+	* m4/gettimeofday.m4 (gl_FUNC_GETTIMEOFDAY):
+	(gl_FUNC_GETTIMEOFDAY_CLOBBER): Set SYS_TIME_H when setting
+	GETTIMEOFDAY_REPLACEMENT to 1.
+
 2007-01-28  Bruno Haible  <bruno@clisp.org>
 
 	* m4/unistd_h.m4 (gl_HEADER_UNISTD_DEFAULTS): New macro.
diff --git a/m4/gettimeofday.m4 b/m4/gettimeofday.m4
--- a/m4/gettimeofday.m4
+++ b/m4/gettimeofday.m4
@@ -32,6 +32,7 @@
 
   if test $gl_cv_func_gettimeofday_posix_signature != yes; then
     GETTIMEOFDAY_REPLACEMENT=1
+    SYS_TIME_H=sys/time.h
     if test $gl_cv_func_gettimeofday_clobber != yes; then
       AC_LIBOBJ(gettimeofday)
       gl_PREREQ_GETTIMEOFDAY
@@ -77,6 +78,7 @@
 
  if test $gl_cv_func_gettimeofday_clobber = yes; then
    GETTIMEOFDAY_REPLACEMENT=1
+   SYS_TIME_H=sys/time.h
    gl_GETTIMEOFDAY_REPLACE_LOCALTIME
    AC_DEFINE([GETTIMEOFDAY_CLOBBERS_LOCALTIME], 1,
      [Define if gettimeofday clobbers the localtime buffer.])
diff --git a/m4/sys_time_h.m4 b/m4/sys_time_h.m4
--- a/m4/sys_time_h.m4
+++ b/m4/sys_time_h.m4
@@ -52,4 +52,10 @@
   dnl Assume POSIX behavior unless another module says otherwise.
   GETTIMEOFDAY_REPLACEMENT=0
   AC_SUBST([GETTIMEOFDAY_REPLACEMENT])
+  if test $HAVE_SYS_TIME_H = 0 || test $HAVE_STRUCT_TIMEVAL = 0; then
+    SYS_TIME_H=sys/time.h
+  else
+    SYS_TIME_H=
+  fi
+  AC_SUBST([SYS_TIME_H])
 ])
diff --git a/modules/sys_time b/modules/sys_time
--- a/modules/sys_time
+++ b/modules/sys_time
@@ -13,7 +13,7 @@
 AC_PROG_MKDIR_P
 
 Makefile.am:
-BUILT_SOURCES += sys/time.h
+BUILT_SOURCES += $(SYS_TIME_H)
 
 # We need the following in order to create <sys/time.h> when the system
 # doesn't have one that works with the given compiler.
@@ -28,7 +28,7 @@
 	      < $(srcdir)/sys_time_.h; \
 	} > $@-t
 	mv $@-t $@
-MOSTLYCLEANFILES += sys/time.h sys/time.h-t
+MOSTLYCLEANFILES += $(SYS_TIME_H) sys/time.h-t
 
 Include:
 #include <sys/time.h>