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-rw-r--r--Source/cmMakefile.cxx12
1 files changed, 7 insertions, 5 deletions
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index ab139c0..dcdaa13 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -2425,16 +2425,18 @@ bool cmMakefile::CanIWriteThisFile(std::string const& fileName) const
cmSystemTools::SameFile(fileName, this->GetHomeOutputDirectory());
}
-std::string cmMakefile::GetRequiredDefinition(const std::string& name) const
+const std::string& cmMakefile::GetRequiredDefinition(
+ const std::string& name) const
{
- const char* ret = this->GetDefinition(name);
- if (!ret) {
+ static std::string const empty;
+ const std::string* def = GetDef(name);
+ if (!def) {
cmSystemTools::Error("Error required internal CMake variable not "
"set, cmake may not be built correctly.\n",
"Missing variable is:\n", name.c_str());
- return std::string();
+ return empty;
}
- return std::string(ret);
+ return *def;
}
bool cmMakefile::IsDefinitionSet(const std::string& name) const