Features: Add COMPILE_FEATURES generator expression.

Allow setting build properties based on the features available
for a target.  The availability of features is determined at
generate-time by evaluating the link implementation.

Ensure that the <LANG>_STANDARD determined while evaluating
COMPILE_FEATURES in the link implementation is not lower than that
provided by the INTERFACE of the link implementation.  This is
similar to handling of transitive properties such as
POSITION_INDEPENDENT_CODE.

1 files changed, 1 insertions, 0 deletions

diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 86842a4..63db20f 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -1229,6 +1229,7 @@ void cmTarget::GetDirectLinkLibraries(const std::string& config,
         this->LinkImplicitNullProperties.insert(*it);
         }
       }
+    cge->GetMaxLanguageStandard(this, this->MaxLanguageStandards);
     }
 }