Commit b04f3b9a authored by Stephen Kelly's avatar Stephen Kelly Committed by Brad King

Create make rules for INTERFACE_LIBRARY targets.

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.
parent dba4962b
......@@ -208,7 +208,15 @@ void cmComputeTargetDepends::CollectTargetDepends(int depender_index)
std::set<cmStdString> emitted;
{
std::vector<std::string> tlibs;
depender->GetDirectLinkLibraries(0, tlibs, depender);
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();
......
......@@ -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;
......@@ -715,53 +722,64 @@ cmGlobalUnixMakefileGenerator3
<< localName << "\n\n";
commands.clear();
makeTargetName = localName;
makeTargetName += "/depend";
commands.push_back(lg->GetRecursiveMakeCall
(makefileName.c_str(),makeTargetName.c_str()));
// add requires if we need it for this generator
if (needRequiresStep)
if(t->second.GetType() != cmTarget::INTERFACE_LIBRARY)
{
makeTargetName = localName;
makeTargetName += "/requires";
makeTargetName += "/depend";
commands.push_back(lg->GetRecursiveMakeCall
(makefileName.c_str(),makeTargetName.c_str()));
}
makeTargetName = localName;
makeTargetName += "/build";
commands.push_back(lg->GetRecursiveMakeCall
(makefileName.c_str(),makeTargetName.c_str()));
// Write the rule.
localName += "/all";
depends.clear();
// add requires if we need it for this generator
if (needRequiresStep)
{
makeTargetName = localName;
makeTargetName += "/requires";
commands.push_back(lg->GetRecursiveMakeCall
(makefileName.c_str(),makeTargetName.c_str()));
}
makeTargetName = localName;
makeTargetName += "/build";
commands.push_back(lg->GetRecursiveMakeCall
(makefileName.c_str(),makeTargetName.c_str()));
std::string progressDir =
lg->GetMakefile()->GetHomeOutputDirectory();
progressDir += cmake::GetCMakeFilesDirectory();
{
cmOStringStream progCmd;
progCmd << "$(CMAKE_COMMAND) -E cmake_progress_report ";
// all target counts
progCmd << lg->Convert(progressDir.c_str(),
cmLocalGenerator::FULL,
cmLocalGenerator::SHELL);
progCmd << " ";
std::vector<unsigned long>& progFiles =
this->ProgressMap[&t->second].Marks;
for (std::vector<unsigned long>::iterator i = progFiles.begin();
i != progFiles.end(); ++i)
// Write the rule.
localName += "/all";
depends.clear();
std::string progressDir =
lg->GetMakefile()->GetHomeOutputDirectory();
progressDir += cmake::GetCMakeFilesDirectory();
{
progCmd << " " << *i;
cmOStringStream progCmd;
progCmd << "$(CMAKE_COMMAND) -E cmake_progress_report ";
// all target counts
progCmd << lg->Convert(progressDir.c_str(),
cmLocalGenerator::FULL,
cmLocalGenerator::SHELL);
progCmd << " ";
std::vector<unsigned long>& progFiles =
this->ProgressMap[&t->second].Marks;
for (std::vector<unsigned long>::iterator i = progFiles.begin();
i != progFiles.end(); ++i)
{
progCmd << " " << *i;
}
commands.push_back(progCmd.str());
}
commands.push_back(progCmd.str());
progressDir = "Built target ";
progressDir += t->first;
lg->AppendEcho(commands,progressDir.c_str());
}
else
{
depends.clear();
}
progressDir = "Built target ";
progressDir += t->first;
lg->AppendEcho(commands,progressDir.c_str());
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();
{
......
......@@ -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());
......
......@@ -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");
......
......@@ -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:
......
......@@ -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)
......
......@@ -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);
......
......@@ -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)
......
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)
int main(int, char**)
{
return 0;
}
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