From 84923605cf89d24c1748256b271e0b79bf1f1e79 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 10 Feb 2006 14:41:31 -0500
Subject: [PATCH] ENH: Allow IF(DEFINED ENV{somevar}) to work.
---
Source/cmIfCommand.cxx | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/Source/cmIfCommand.cxx b/Source/cmIfCommand.cxx
index c99bb737c7..f92c647341 100644
--- a/Source/cmIfCommand.cxx
+++ b/Source/cmIfCommand.cxx
@@ -262,7 +262,17 @@ bool cmIfCommand::IsTrue(const std::vector<std::string> &args,
// is a variable defined
if (*arg == "DEFINED" && argP1 != newArgs.end())
{
- def = makefile->GetDefinition((argP1)->c_str());
+ unsigned int argP1len = argP1->size();
+ if(argP1len > 4 && argP1->substr(0, 4) == "ENV{" &&
+ argP1->operator[](argP1len-1) == '}')
+ {
+ std::string env = argP1->substr(4, argP1len-5);
+ def = cmSystemTools::GetEnv(env.c_str());
+ }
+ else
+ {
+ def = makefile->GetDefinition((argP1)->c_str());
+ }
if(def)
{
*arg = "1";
--
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