From: Ben Pfaff <blp@nicira.com>
Date: Mon, 25 Jul 2011 23:15:18 +0000 (-0700)
Subject: rhel: Fix use of $< in ordinary Make rules.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cbaa4ffe9b72904a7dad8ba23fa13cf2783b26c9;p=openvswitch

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.
---

diff --git a/Makefile.am b/Makefile.am
index 5e449d6d..91218e14 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 d4d59613..34abe5b9 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 > $@