Fix DAG checker finding cycling dependencies.

Before this patch, the following is reported falsely as a self-reference:

 target_link_libraries(empty2 LINK_PUBLIC empty3)
 target_link_libraries(empty3 LINK_PUBLIC empty2)

 add_custom_target(...
    -DINCLUDES=$<TARGET_PROPERTY:empty2,INTERFACE_INCLUDE_DIRECTORIES>
 )

The reason is that the existing code assumed that all reading of
include directories would be done through cmTarget::GetIncludeDirectories()
and would therefore be initialized with a DagChecker. That is not the case
if reading the property with an 'external' generator expression.
This commit is contained in:
Stephen Kelly 2013-02-18 11:08:24 +01:00
parent e72eaadc42
commit d1a2729b1a
1 changed files with 1 additions and 1 deletions

View File

@ -126,7 +126,7 @@ cmGeneratorExpressionDAGChecker::checkGraph() const
{ {
if (this->Target == parent->Target && this->Property == parent->Property) if (this->Target == parent->Target && this->Property == parent->Property)
{ {
return parent->Parent ? CYCLIC_REFERENCE : SELF_REFERENCE; return (parent == this->Parent) ? SELF_REFERENCE : CYCLIC_REFERENCE;
} }
parent = parent->Parent; parent = parent->Parent;
} }