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-rw-r--r--Source/cmCacheManager.cxx3
1 files changed, 2 insertions, 1 deletions
diff --git a/Source/cmCacheManager.cxx b/Source/cmCacheManager.cxx
index 13407e5..c6a1cff 100644
--- a/Source/cmCacheManager.cxx
+++ b/Source/cmCacheManager.cxx
@@ -566,7 +566,8 @@ void cmCacheManager::AddCacheEntry(const std::string& key, const char* value,
cmSystemTools::ConvertToUnixSlashes(e.Value);
}
}
- e.SetProperty("HELPSTRING", helpString
+ e.SetProperty("HELPSTRING",
+ helpString
? helpString
: "(This variable does not exist and should not be used)");
}