From: Eric Blake <eblake@redhat.com>
Date: Wed, 25 Aug 2010 22:22:45 +0000 (-0600)
Subject: m4sh: reduce size of AS_VAR_TEST_SET
X-Git-Tag: v2.68~50
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ae1cc9f03fb60ee3ab686642ac7faa4279bbcfc4;p=thirdparty%2Fautoconf.git

m4sh: reduce size of AS_VAR_TEST_SET

* lib/m4sugar/m4sh.m4 (AS_VAR_TEST_SET): Make more compact.

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

diff --git a/ChangeLog b/ChangeLog
index fe403cda..dbb2fbfd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2010-08-25  Eric Blake  <eblake@redhat.com>
 
+	m4sh: reduce size of AS_VAR_TEST_SET
+	* lib/m4sugar/m4sh.m4 (AS_VAR_TEST_SET): Make more compact.
+
 	tests: improve some shell assumption testing
 	* tests/m4sh.at (Functions Support, Functions and return Support)
 	(Negated classes in globbing): Update comments.
diff --git a/lib/m4sugar/m4sh.m4 b/lib/m4sugar/m4sh.m4
index 6b1c1ead..facd70d9 100644
--- a/lib/m4sugar/m4sh.m4
+++ b/lib/m4sugar/m4sh.m4
@@ -2063,13 +2063,13 @@ m4_define([AS_VAR_SET_IF],
 
 # AS_VAR_TEST_SET(VARIABLE)
 # -------------------------
-# Expands into the `test' expression which is true if VARIABLE
+# Expands into an expression which is true if VARIABLE
 # is set.  Polymorphic.
 m4_define([AS_VAR_TEST_SET],
 [AS_LITERAL_WORD_IF([$1],
-	       [test "${$1+set}" = set],
-	       [{ as_var=$1; eval "test \"\${$as_var+set}\" = set"; }],
-	       [eval "test \"\${$1+set}\"" = set])])
+  [${$1+:} false],
+  [{ as_var=$1; eval \${$as_var+:} false; }],
+  [eval \${$1+:} false])])
 
 
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