From: Stefano Lattarini <stefano.lattarini@gmail.com>
Date: Sat, 2 Jun 2012 19:11:38 +0000 (+0200)
Subject: [ng] refactor: a first use of "ifndef VAR"
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87fd28feafa58a98fa2fdc139de803aa191abb30;p=thirdparty%2Fautomake.git

[ng] refactor: a first use of "ifndef VAR"

* lib/am/header-vars.am: Use "ifndef .FEATURES" instead of
"$(if $(.FEATURES))" to determine whether the used GNU make
version is recent enough.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
---

diff --git a/lib/am/header-vars.am b/lib/am/header-vars.am
index 4ff47dba3..9903af91a 100644
--- a/lib/am/header-vars.am
+++ b/lib/am/header-vars.am
@@ -38,8 +38,9 @@ endef
 ## The .FEATURES special variable has been introduced in that make
 ## version, so use it as a witness to determine whether the current
 ## make is good enough.
-$(if $(.FEATURES),, \
-  $(error Automake-NG based builds require GNU make 3.81 or later))
+ifndef .FEATURES
+  $(error Automake-NG based builds require GNU make 3.81 or later)
+endif
 
 am__mkdir = test -d $1 || $(MKDIR_P) $1