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Create make rules for INTERFACE_LIBRARY targets.

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The result is that the depends of the target are created.

So,

 add_library(somelib foo.cpp)
 add_library(anotherlib EXCLUDE_FROM_ALL foo.cpp)
 add_library(extra EXCLUDE_FROM_ALL foo.cpp)
 target_link_libraries(anotherlib extra)

 add_library(iface INTERFACE)
 target_link_libraries(iface INTERFACE anotherlib)

Executing 'make iface' will result in the anotherlib and extra targets
being made.

Adding a regular executable to the INTERFACE of an INTERFACE_LIBRARY
will not result in the executable being built with 'make iface' because
of the logic in cmComputeTargetDepends::AddTargetDepend.

So far, this is implemented only for the Makefile generator. Other
generators will follow if this feature is possible for them.

Make INTERFACE_LIBRARY targets part of the all target by default.
Test this by building the all target and making the expected library
EXCLUDE_FROM_ALL.
This commit is contained in:
Stephen Kelly 2013-08-21 22:00:48 +02:00 committed by Brad King
parent dba4962b86
commit b04f3b9a2a
11 changed files with 136 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Source/cmComputeTargetDepends.cxx
View File

@ -208,7 +208,15 @@ void cmComputeTargetDepends::CollectTargetDepends(int depender_index)
std::set<cmStdString> emitted;
{
std::vector<std::string> tlibs;
if (depender->GetType() == cmTarget::INTERFACE_LIBRARY)
{
// For INTERFACE_LIBRARY depend on the interface instead.
depender->GetInterfaceLinkLibraries(0, tlibs, depender);
}
else
{
depender->GetDirectLinkLibraries(0, tlibs, depender);
}
// A target should not depend on itself.
emitted.insert(depender->GetName());
for(std::vector<std::string>::const_iterator lib = tlibs.begin();

22
Source/cmGlobalUnixMakefileGenerator3.cxx
View File

@ -435,6 +435,7 @@ cmGlobalUnixMakefileGenerator3
(l->second.GetType() == cmTarget::SHARED_LIBRARY) ||
(l->second.GetType() == cmTarget::MODULE_LIBRARY) ||
(l->second.GetType() == cmTarget::OBJECT_LIBRARY) ||
(l->second.GetType() == cmTarget::INTERFACE_LIBRARY) ||
(l->second.GetType() == cmTarget::UTILITY))
{
// Add this to the list of depends rules in this directory.
@ -612,6 +613,7 @@ cmGlobalUnixMakefileGenerator3
(t->second.GetType() == cmTarget::SHARED_LIBRARY) ||
(t->second.GetType() == cmTarget::MODULE_LIBRARY) ||
(t->second.GetType() == cmTarget::OBJECT_LIBRARY) ||
(t->second.GetType() == cmTarget::INTERFACE_LIBRARY) ||
(t->second.GetType() == cmTarget::UTILITY)))
{
// Add a rule to build the target by name.
@ -633,6 +635,10 @@ cmGlobalUnixMakefileGenerator3
t->second.GetName(), depends, commands,
true);
if (t->second.GetType() == cmTarget::INTERFACE_LIBRARY)
{
continue;
}
// Add a fast rule to build the target
std::string localName = lg->GetRelativeTargetDirectory(t->second);
std::string makefileName;
@ -699,6 +705,7 @@ cmGlobalUnixMakefileGenerator3
|| (t->second.GetType() == cmTarget::SHARED_LIBRARY)
|| (t->second.GetType() == cmTarget::MODULE_LIBRARY)
|| (t->second.GetType() == cmTarget::OBJECT_LIBRARY)
|| (t->second.GetType() == cmTarget::INTERFACE_LIBRARY)
|| (t->second.GetType() == cmTarget::UTILITY)))
{
std::string makefileName;
@ -715,6 +722,9 @@ cmGlobalUnixMakefileGenerator3
<< localName << "\n\n";
commands.clear();
if(t->second.GetType() != cmTarget::INTERFACE_LIBRARY)
{
makeTargetName = localName;
makeTargetName += "/depend";
commands.push_back(lg->GetRecursiveMakeCall
@ -760,8 +770,16 @@ cmGlobalUnixMakefileGenerator3
progressDir = "Built target ";
progressDir += t->first;
lg->AppendEcho(commands,progressDir.c_str());
}
else
{
depends.clear();
}
this->AppendGlobalTargetDepends(depends,t->second);
if(depends.empty() && this->EmptyRuleHackDepends != "")
{
depends.push_back(this->EmptyRuleHackDepends);
}
lg->WriteMakeRule(ruleFileStream, "All Build rule for target.",
localName.c_str(), depends, commands, true);
@ -777,7 +795,7 @@ cmGlobalUnixMakefileGenerator3
// Write the rule.
commands.clear();
progressDir = lg->GetMakefile()->GetHomeOutputDirectory();
std::string progressDir = lg->GetMakefile()->GetHomeOutputDirectory();
progressDir += cmake::GetCMakeFilesDirectory();
{

1
Source/cmLocalUnixMakefileGenerator3.cxx
View File

@ -381,6 +381,7 @@ void cmLocalUnixMakefileGenerator3
(t->second.GetType() == cmTarget::SHARED_LIBRARY) ||
(t->second.GetType() == cmTarget::MODULE_LIBRARY) ||
(t->second.GetType() == cmTarget::OBJECT_LIBRARY) ||
(t->second.GetType() == cmTarget::INTERFACE_LIBRARY) ||
(t->second.GetType() == cmTarget::UTILITY))
{
emitted.insert(t->second.GetName());

3
Source/cmMakefileLibraryTargetGenerator.cxx
View File

@ -82,6 +82,9 @@ void cmMakefileLibraryTargetGenerator::WriteRuleFiles()
case cmTarget::OBJECT_LIBRARY:
this->WriteObjectLibraryRules();
break;
case cmTarget::INTERFACE_LIBRARY:
// Nothing to do.
break;
default:
// If language is not known, this is an error.
cmSystemTools::Error("Unknown Library Type");

1
Source/cmMakefileTargetGenerator.cxx
View File

@ -75,6 +75,7 @@ cmMakefileTargetGenerator::New(cmTarget *tgt)
case cmTarget::SHARED_LIBRARY:
case cmTarget::MODULE_LIBRARY:
case cmTarget::OBJECT_LIBRARY:
case cmTarget::INTERFACE_LIBRARY:
result = new cmMakefileLibraryTargetGenerator(tgt);
break;
case cmTarget::UTILITY:

23
Source/cmTarget.cxx
View File

@ -1111,6 +1111,29 @@ void cmTarget::GetDirectLinkLibraries(const char *config,
}
}
//----------------------------------------------------------------------------
void cmTarget::GetInterfaceLinkLibraries(const char *config,
std::vector<std::string> &libs, cmTarget *head)
{
const char *prop = this->GetProperty("INTERFACE_LINK_LIBRARIES");
if (prop)
{
cmListFileBacktrace lfbt;
cmGeneratorExpression ge(lfbt);
const cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(prop);
cmGeneratorExpressionDAGChecker dagChecker(lfbt,
this->GetName(),
"INTERFACE_LINK_LIBRARIES", 0, 0);
cmSystemTools::ExpandListArgument(cge->Evaluate(this->Makefile,
config,
false,
head,
&dagChecker),
libs);
}
}
//----------------------------------------------------------------------------
std::string cmTarget::GetDebugGeneratorExpressions(const std::string &value,
cmTarget::LinkLibraryType llt)

3
Source/cmTarget.h
View File

@ -177,6 +177,9 @@ public:
void GetDirectLinkLibraries(const char *config,
std::vector<std::string> &,
cmTarget *head);
void GetInterfaceLinkLibraries(const char *config,
std::vector<std::string> &,
cmTarget *head);
/** Compute the link type to use for the given configuration. */
LinkLibraryType ComputeLinkType(const char* config);

17
Tests/CMakeLists.txt
View File

@ -261,6 +261,23 @@ if(BUILD_TESTING)
PASS_REGULAR_EXPRESSION "(file is not of required architecture|does not match cputype|not the architecture being linked)")
endif()
if(CMAKE_TEST_GENERATOR MATCHES Make)
set(InterfaceBuildTargets_libname testlib)
if (CMAKE_TEST_GENERATOR MATCHES "Borland|Watcom")
set(InterfaceBuildTargets_libname testlib.lib)
endif()
add_test(InterfaceBuildTargets ${CMAKE_CTEST_COMMAND}
--build-and-test
"${CMake_SOURCE_DIR}/Tests/InterfaceBuildTargets"
"${CMake_BINARY_DIR}/Tests/InterfaceBuildTargets"
--build-two-config
${build_generator_args}
--build-project InterfaceBuildTargets
--test-command ${CMAKE_CMAKE_COMMAND} -E touch_nocreate ${InterfaceBuildTargets_libname}
)
list(APPEND TEST_BUILD_DIRS "${CMake_BINARY_DIR}/Tests/InterfaceBuildTargets")
endif()
list(APPEND TEST_BUILD_DIRS ${CMake_TEST_INSTALL_PREFIX})
if(NOT QT4_FOUND)

13
Tests/InterfaceBuildTargets/CMakeLists.txt Normal file
View File

@ -0,0 +1,13 @@
project(InterfaceBuildTargets)
add_library(testlib EXCLUDE_FROM_ALL testlib.cxx)
set_property(TARGET testlib PROPERTY PREFIX "")
if(CMAKE_GENERATOR MATCHES "Borland|Watcom")
# These librarians add the .lib suffix anyway.
set_property(TARGET testlib PROPERTY SUFFIX ".lib")
else()
set_property(TARGET testlib PROPERTY SUFFIX "")
endif()
add_library(iface INTERFACE)
target_link_libraries(iface INTERFACE testlib)

5
Tests/InterfaceBuildTargets/main.cxx Normal file
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@ -0,0 +1,5 @@
int main(int, char**)
{
return 0;
}

5
Tests/InterfaceBuildTargets/testlib.cxx Normal file
View File

@ -0,0 +1,5 @@
void testlib(void)
{
}