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Genex: Disallow LINKER_LANGUAGE only when used on a static library. 

For shared libraries and executables, the linker_language is
indepenedent of the linked libraries.
This commit is contained in:
Stephen Kelly 2013-07-25 09:12:28 +02:00
parent c8a10ba9ad
commit b8dc7fad23
4 changed files with 12 additions and 8 deletions
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5
Source/cmGeneratorExpressionEvaluator.cxx
View File

@ -790,11 +790,12 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
if (propertyName == "LINKER_LANGUAGE")
{
if (dagCheckerParent && dagCheckerParent->EvaluatingLinkLibraries())
if (target->LinkLanguagePropagatesToDependents() &&
dagCheckerParent && dagCheckerParent->EvaluatingLinkLibraries())
{
reportError(context, content->GetOriginalExpression(),
"LINKER_LANGUAGE target property can not be used while evaluating "
"link libraries");
"link libraries for a static library");
return std::string();
}
const char *lang = target->GetLinkerLanguage(context->Config);

8
Source/cmTarget.cxx
View File

@ -6241,7 +6241,7 @@ void cmTarget::ComputeImportInfo(std::string const& desired_config,
}
// Get the link languages.
if(this->GetType() == cmTarget::STATIC_LIBRARY)
if(this->LinkLanguagePropagatesToDependents())
{
std::string linkProp = "IMPORTED_LINK_INTERFACE_LANGUAGES";
linkProp += suffix;
@ -6470,7 +6470,7 @@ bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
else
{
iface.Libraries = impl->Libraries;
if(this->GetType() == cmTarget::STATIC_LIBRARY)
if(this->LinkLanguagePropagatesToDependents())
{
// Targets using this archive need its language runtime libraries.
iface.Languages = impl->Languages;
@ -6539,7 +6539,7 @@ bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
}
}
}
if(this->GetType() == cmTarget::STATIC_LIBRARY)
if(this->LinkLanguagePropagatesToDependents())
{
// Targets using this archive need its language runtime libraries.
iface.Languages = impl->Languages;
@ -6558,7 +6558,7 @@ bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
iface.ImplementationIsInterface = true;
iface.Libraries = impl->Libraries;
iface.WrongConfigLibraries = impl->WrongConfigLibraries;
if(this->GetType() == cmTarget::STATIC_LIBRARY)
if(this->LinkLanguagePropagatesToDependents())
{
// Targets using this archive need its language runtime libraries.
iface.Languages = impl->Languages;

3
Source/cmTarget.h
View File

@ -549,6 +549,9 @@ public:
void FinalizeSystemIncludeDirectories();
bool LinkLanguagePropagatesToDependents() const
{ return this->TargetTypeValue == STATIC_LIBRARY; }
private:
// The set of include directories that are marked as system include
// directories.

4
Tests/RunCMake/Languages/LINK_LANGUAGE-genex.cmake
View File

@ -1,4 +1,4 @@
add_library(foo SHARED empty.cpp)
add_library(bar SHARED empty.cpp)
add_library(foo STATIC empty.cpp)
add_library(bar STATIC empty.cpp)
target_link_libraries(foo $<$<STREQUAL:$<TARGET_PROPERTY:LINKER_LANGUAGE>,anything>:bar>)