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Handle reading empty properties defined by the link interface. 

This was segfaulting before.
This commit is contained in:
Stephen Kelly 2013-01-31 11:18:49 +01:00
parent da2b0245a3
commit 30268b46f8
2 changed files with 16 additions and 2 deletions
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4
Source/cmGeneratorExpressionEvaluator.cxx
View File

@ -465,9 +465,11 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
if (target->IsLinkInterfaceDependentStringProperty(propertyName,
context->Config))
{
return target->GetLinkInterfaceDependentStringProperty(
const char *propContent =
target->GetLinkInterfaceDependentStringProperty(
propertyName,
context->Config);
return propContent ? propContent : "";
}
return std::string();

14
Tests/CompatibleInterface/CMakeLists.txt
View File

@ -48,10 +48,22 @@ target_compile_definitions(CompatibleInterface
add_library(iface2 SHARED iface2.cpp)
generate_export_header(iface2)
set_property(TARGET iface2 APPEND PROPERTY
COMPATIBLE_INTERFACE_STRING
Iface2_PROP
)
# For the LINK_LIBRARIES and related properties, we should not evaluate
# properties defined only in the interface - they should be implicitly zero
set_property(TARGET iface2
APPEND PROPERTY
LINK_INTERFACE_LIBRARIES $<$<BOOL:$<TARGET_PROPERTY:BOOL_PROP4>>:nonexistant>
)
target_link_libraries(CompatibleInterface iface2)
target_link_libraries(CompatibleInterface iface2
$<$<BOOL:$<TARGET_PROPERTY:Iface2_PROP>>:nonexistant>
)
# Test that this does not segfault:
target_compile_definitions(CompatibleInterface
PRIVATE
$<$<BOOL:$<TARGET_PROPERTY:Iface2_PROP>>:SOME_DEFINE>
)