Add m4_blank and friends.
commit723c9e5c0f2c3aa7ef46534ad084974fa2282435
authorEric Blake <ebb9@byu.net>
Thu, 9 Apr 2009 13:05:00 +0000 (9 07:05 -0600)
committerEric Blake <ebb9@byu.net>
Mon, 13 Apr 2009 19:15:32 +0000 (13 13:15 -0600)
tree43e7628c6f9b717e35e1a2268474e036a1b41b97
parent15163ab08a7fa5bf47eaec1a7793f97a0e261613
Add m4_blank and friends.

* lib/m4sugar/m4sugar.m4 (m4_blank, m4_nblank, m4_default_nblank)
(m4_default_nblank_quoted): New macros.
* NEWS: Document them.
* doc/autoconf.texi (Conditional constructs): Likewise.
* tests/m4sugar.at (m4sugar shorthand conditionals): New test.
Suggested by Mike Frysinger.

Signed-off-by: Eric Blake <ebb9@byu.net>
ChangeLog
NEWS
doc/autoconf.texi
lib/m4sugar/m4sugar.m4
tests/m4sugar.at