[SCM] GNU Autoconf source repository branch, master, updated. v2.69-77-g845e703

[Paul Eggert]

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- Log -----------------------------------------------------------------
commit 845e703afd505f1f5ca7649fc1730258573e0f3a
Author: Paul Eggert <***@cs.ucla.edu>
Date: Fri Mar 8 09:22:48 2013 -0800

doc: explain why single-quoting is better

* doc/autoconf.texi (Build Directories): Explain single-quoting.
Reported by Markus Elfring in
<http://savannah.gnu.org/support/?108262>.

-----------------------------------------------------------------------

Summary of changes:
doc/autoconf.texi | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index bf4823d..c54c5b3 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -3148,7 +3148,10 @@ versions of @command{make} do not set @code{$<} in explicit rules; they
expand it to an empty value.

Instead, Make command lines should always refer to source
-files by prefixing them with @samp{$(srcdir)/}. For example:
+files by prefixing them with @samp{$(srcdir)/}. It's safer
+to quote the source directory name, in case it contains characters that
+are special to the shell. Because @samp{$(srcdir)} is expanded by Make,
+single-quoting works and is safer than double-quoting. For example:

@example
time.info: time.texinfo


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