From: Bruno Haible <bruno@clisp.org>
Date: Fri, 18 Jun 2010 22:06:37 +0000 (+0200)
Subject: Document how to write comments in makefile rules.
X-Git-Tag: v2.66~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85b2b2056e4f77313bad613d7bf18ab63f942606;p=thirdparty%2Fautoconf.git

Document how to write comments in makefile rules.

* doc/autoconf.texi (Comments in Make Rules): Mention a workaround
syntax.

Signed-off-by: Eric Blake <eblake@redhat.com>
---

diff --git a/ChangeLog b/ChangeLog
index c74488de..855324bb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2010-06-22  Bruno Haible  <bruno@clisp.org>
+
+	Document how to write comments in makefile rules.
+	* doc/autoconf.texi (Comments in Make Rules): Mention a workaround
+	syntax.
+
 2010-06-22  Ben Pfaff  <blp@cs.stanford.edu>
 
 	Document how to propogate variables to submakes.
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 5e0d754d..a7ccb689 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -18965,6 +18965,14 @@ all:
         # foo
 @end example
 
+As a workaround, you can use the @command{:} no-op command with a string
+argument that gets ignored:
+
+@example
+all:
+        : "foo"
+@end example
+
 @node obj/ and Make
 @section The @file{obj/} Subdirectory and Make
 @cindex @file{obj/}, subdirectory