[pkgsrc/trunk]: pkgsrc/mk/tools Test to see if a variable is defined before t...

[dmcmahill <dmcmahill%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/88b71938bd89
branches:  trunk
changeset: 529249:88b71938bd89
user:      dmcmahill <dmcmahill%pkgsrc.org@localhost>
date:      Tue May 29 03:00:44 2007 +0000

description:
Test to see if a variable is defined before testing for its value.  Keeps
make happy on my older (netbsd-2) NetBSD box.

diffstat:

 mk/tools/replace.mk |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (19 lines):

diff -r a883f4f7ff93 -r 88b71938bd89 mk/tools/replace.mk
--- a/mk/tools/replace.mk       Tue May 29 02:22:56 2007 +0000
+++ b/mk/tools/replace.mk       Tue May 29 03:00:44 2007 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: replace.mk,v 1.189 2007/05/27 02:11:13 jlam Exp $
+# $NetBSD: replace.mk,v 1.190 2007/05/29 03:00:44 dmcmahill Exp $
 #
 # Copyright (c) 2005 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -142,7 +142,8 @@
 .endfor
 
 .if !empty(_USE_TOOLS:Mbison-yacc)     # bison-yacc > yacc
-.  if (${_TOOLS_DEPMETHOD.bison-yacc} == "BUILD_DEPENDS") && \
+.  if defined(_TOOLS_DEPMETHOD.bison-yacc) && \
+      (${_TOOLS_DEPMETHOD.bison-yacc} == "BUILD_DEPENDS") && \
       defined(_TOOLS_DEPMETHOD.yacc)
 _TOOLS_DEPMETHOD.bison-yacc=   ${_TOOLS_DEPMETHOD.yacc}
 .  endif