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-rw-r--r--Source/cmSystemTools.cxx3
1 files changed, 1 insertions, 2 deletions
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 55b0df8..3de45bc 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -1501,8 +1501,7 @@ std::string cmSystemTools::RelativeIfUnder(std::string const& top,
bool cmSystemTools::UnsetEnv(const char* value)
{
# if !defined(HAVE_UNSETENV)
- std::string var = cmStrCat(value, '=');
- return cmSystemTools::PutEnv(var);
+ return cmSystemTools::UnPutEnv(value);
# else
unsetenv(value);
return true;