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Don't add invalid content to static lib INTERFACE_LINK_LIBRARIES. 

Only valid target names or generator expressions may appear in
the target field of a LINK_ONLY expression.

Other content like link flags should still be added to that property
(wrapped in config-specific generator expressions), but not wrapped
in LINK_ONLY. Otherwise undue warnings would be issued for the
policy CMP0022.

The LINK_ONLY expression only has an effect for actual target
names anyway, so there is no logical deficit.
This commit is contained in:
Stephen Kelly 2013-10-20 20:39:16 +02:00 committed by Brad King
parent c515dc5748
commit 239b0c6b0e
4 changed files with 26 additions and 9 deletions
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15
Source/cmTarget.cxx
View File

@ -2331,15 +2331,20 @@ void cmTarget::MergeLinkLibraries( cmMakefile& mf,
i += this->PrevLinkedLibraries.size();
for( ; i != libs.end(); ++i )
{
const char *lib = i->first.c_str();
// We call this so that the dependencies get written to the cache
this->AddLinkLibrary( mf, selfname, i->first.c_str(), i->second );
this->AddLinkLibrary( mf, selfname, lib, i->second );
if (this->GetType() == cmTarget::STATIC_LIBRARY)
{
this->AppendProperty("INTERFACE_LINK_LIBRARIES",
("$<LINK_ONLY:" +
this->GetDebugGeneratorExpressions(i->first.c_str(), i->second) +
">").c_str());
std::string configLib = this->GetDebugGeneratorExpressions(lib,
i->second);
if (cmGeneratorExpression::IsValidTargetName(lib)
|| cmGeneratorExpression::Find(lib) != std::string::npos)
{
configLib = "$<LINK_ONLY:" + configLib + ">";
}
this->AppendProperty("INTERFACE_LINK_LIBRARIES", configLib.c_str());
}
}
this->PrevLinkedLibraries = libs;

11
Source/cmTargetLinkLibrariesCommand.cxx
View File

@ -384,10 +384,15 @@ cmTargetLinkLibrariesCommand::HandleLibrary(const char* lib,
{
if (this->Target->GetType() == cmTarget::STATIC_LIBRARY)
{
std::string configLib = this->Target
->GetDebugGeneratorExpressions(lib, llt);
if (cmGeneratorExpression::IsValidTargetName(lib)
|| cmGeneratorExpression::Find(lib) != std::string::npos)
{
configLib = "$<LINK_ONLY:" + configLib + ">";
}
this->Target->AppendProperty("INTERFACE_LINK_LIBRARIES",
("$<LINK_ONLY:" +
this->Target->GetDebugGeneratorExpressions(lib, llt) +
">").c_str());
configLib.c_str());
}
// Not a 'public' or 'interface' library. Do not add to interface
// property.

3
Tests/CMakeCommands/target_link_libraries/cmp0022/CMakeLists.txt
View File

@ -22,6 +22,9 @@ generate_export_header(staticlib1)
add_library(staticlib2 STATIC staticlib2.cpp)
generate_export_header(staticlib2)
target_link_libraries(staticlib1 LINK_PUBLIC staticlib2)
if (CMAKE_CXX_COMPILER_ID MATCHES GNU OR CMAKE_CXX_COMPILER_ID MATCHES Clang)
target_link_libraries(staticlib1 LINK_PRIVATE "-Wl,-v")
endif()
add_executable(staticlib_exe staticlib_exe.cpp)
target_link_libraries(staticlib_exe staticlib1)

6
Tests/RunCMake/CMP0022/CMP0022-NOWARN-static.cmake
View File

@ -5,4 +5,8 @@ add_library(foo STATIC empty_vs6_1.cpp)
add_library(bar STATIC empty_vs6_2.cpp)
add_library(bat STATIC empty_vs6_3.cpp)
target_link_libraries(foo bar)
target_link_libraries(bar bat)
# The last element here needs to contain a space so that it is a single
# element which is not a valid target name. As bar is a STATIC library,
# this tests that the LINK_ONLY generator expression is not used for
# that element, creating an error.
target_link_libraries(bar bat "-lz -lm")