From cbaa4ffe9b72904a7dad8ba23fa13cf2783b26c9 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@nicira.com>
Date: Mon, 25 Jul 2011 16:15:18 -0700
Subject: [PATCH] rhel: Fix use of $< in ordinary Make rules.

POSIX only allows $< in inference rules, so avoid it for these target
rules.

Also, add a header to the generated spec files to remind developers that
they are generated.
---
 Makefile.am      |  1 +
 rhel/automake.mk | 10 ++++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 5e449d6d3..91218e14a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -82,6 +82,7 @@ EXTRA_DIST += \
 	soexpand.pl
 
 ro_c = echo '/* -*- mode: c; buffer-read-only: t -*- */'
+ro_shell = printf '\043 Generated automatically -- do not modify!    -*- buffer-read-only: t -*-\n'
 
 SUFFIXES += .in
 .in:
diff --git a/rhel/automake.mk b/rhel/automake.mk
index d4d59613e..34abe5b9d 100644
--- a/rhel/automake.mk
+++ b/rhel/automake.mk
@@ -20,11 +20,13 @@ EXTRA_DIST += \
 
 
 $(srcdir)/rhel/openvswitch-kmod-rhel5.spec: rhel/openvswitch-kmod-rhel5.spec.in $(top_builddir)/config.status
-	sed -e 's,[@]VERSION[@],$(VERSION),g' < $< > $@
+	($(ro_shell) && sed -e 's,[@]VERSION[@],$(VERSION),g') \
+		< $(srcdir)/rhel/openvswitch-kmod-rhel5.spec.in > $@
 
 $(srcdir)/rhel/openvswitch-kmod-rhel6.spec: rhel/openvswitch-kmod-rhel6.spec.in $(top_builddir)/config.status
-
-	sed -e 's,[@]VERSION[@],$(VERSION),g' < $< > $@
+	($(ro_shell) && sed -e 's,[@]VERSION[@],$(VERSION),g') \
+		< $(srcdir)/rhel/openvswitch-kmod-rhel6.spec.in > $@
 
 $(srcdir)/rhel/openvswitch.spec: rhel/openvswitch.spec.in $(top_builddir)/config.status
-	sed -e 's,[@]VERSION[@],$(VERSION),g' < $< > $@
+	($(ro_shell) && sed -e 's,[@]VERSION[@],$(VERSION),g') \
+		< $(srcdir)/rhel/openvswitch.spec.in > $@
-- 
2.43.0