diff --git a/Help/command/add_dependencies.rst b/Help/command/add_dependencies.rst index 10997ec20..c3583cf95 100644 --- a/Help/command/add_dependencies.rst +++ b/Help/command/add_dependencies.rst @@ -7,13 +7,16 @@ Add a dependency between top-level targets. add_dependencies( []...) -Make a top-level depend on other top-level targets to ensure -that they build before does. A top-level target is one -created by ADD_EXECUTABLE, ADD_LIBRARY, or ADD_CUSTOM_TARGET. -Dependencies added to an IMPORTED target are followed transitively in -its place since the target itself does not build. +Make a top-level ```` depend on other top-level targets to +ensure that they build before ```` does. A top-level target +is one created by one of the :command:`add_executable`, +:command:`add_library`, or :command:`add_custom_target` commands. -See the DEPENDS option of ADD_CUSTOM_TARGET and ADD_CUSTOM_COMMAND for -adding file-level dependencies in custom rules. See the -OBJECT_DEPENDS option in SET_SOURCE_FILES_PROPERTIES to add file-level -dependencies to object files. +Dependencies added to an :ref:`imported target ` +or an :ref:`interface library ` are followed +transitively in its place since the target itself does not build. + +See the ``DEPENDS`` option of :command:`add_custom_target` and +:command:`add_custom_command` commands for adding file-level +dependencies in custom rules. See the :prop_sf:`OBJECT_DEPENDS` +source file property to add file-level dependencies to object files. diff --git a/Help/release/dev/add_dependencies-INTERFACE-libraries.rst b/Help/release/dev/add_dependencies-INTERFACE-libraries.rst new file mode 100644 index 000000000..dfac2aff7 --- /dev/null +++ b/Help/release/dev/add_dependencies-INTERFACE-libraries.rst @@ -0,0 +1,7 @@ +add_dependencies-INTERFACE-libraries +------------------------------------ + +* The :command:`add_dependencies` command learned to allow dependencies + to be added to :ref:`interface libraries `. + Dependencies added to an interface library are followed transitively + in its place since the target itself does not build. diff --git a/Source/cmAddDependenciesCommand.cxx b/Source/cmAddDependenciesCommand.cxx index b560452c4..3a7494650 100644 --- a/Source/cmAddDependenciesCommand.cxx +++ b/Source/cmAddDependenciesCommand.cxx @@ -33,15 +33,6 @@ bool cmAddDependenciesCommand } if(cmTarget* target = this->Makefile->FindTargetToUse(target_name)) { - if (target->GetType() == cmTarget::INTERFACE_LIBRARY) - { - std::ostringstream e; - e << "Cannot add target-level dependencies to INTERFACE library " - "target \"" << target_name << "\".\n"; - this->SetError(e.str()); - return false; - } - std::vector::const_iterator s = args.begin(); ++s; // skip over target_name for (; s != args.end(); ++s) diff --git a/Source/cmComputeTargetDepends.cxx b/Source/cmComputeTargetDepends.cxx index cf2b88e4a..bbffd5da0 100644 --- a/Source/cmComputeTargetDepends.cxx +++ b/Source/cmComputeTargetDepends.cxx @@ -418,9 +418,11 @@ void cmComputeTargetDepends::AddTargetDepend(int depender_index, cmTarget const* dependee, bool linking) { - if(dependee->IsImported()) + if(dependee->IsImported() || + dependee->GetType() == cmTarget::INTERFACE_LIBRARY) { - // Skip imported targets but follow their utility dependencies. + // Skip IMPORTED and INTERFACE targets but follow their utility + // dependencies. std::set const& utils = dependee->GetUtilityItems(); for(std::set::const_iterator i = utils.begin(); i != utils.end(); ++i) diff --git a/Tests/InterfaceLibrary/headerdir/CMakeLists.txt b/Tests/InterfaceLibrary/headerdir/CMakeLists.txt index 98f521e8c..826a9ed9c 100644 --- a/Tests/InterfaceLibrary/headerdir/CMakeLists.txt +++ b/Tests/InterfaceLibrary/headerdir/CMakeLists.txt @@ -3,6 +3,11 @@ set(CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE ON) add_library(headeriface INTERFACE) -file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/iface_header_builddir.h" - "#define IFACE_HEADER_BUILDDIR\n" -) +add_custom_target(headeriface_gen + COMMENT "Generating iface_header_builddir.h" + COMMAND ${CMAKE_COMMAND} -E copy_if_different + ${CMAKE_CURRENT_SOURCE_DIR}/iface_header_builddir.h.in + ${CMAKE_CURRENT_BINARY_DIR}/iface_header_builddir.h + VERBATIM + ) +add_dependencies(headeriface headeriface_gen) diff --git a/Tests/InterfaceLibrary/headerdir/iface_header_builddir.h.in b/Tests/InterfaceLibrary/headerdir/iface_header_builddir.h.in new file mode 100644 index 000000000..42dd6dfd9 --- /dev/null +++ b/Tests/InterfaceLibrary/headerdir/iface_header_builddir.h.in @@ -0,0 +1 @@ +#define IFACE_HEADER_BUILDDIR diff --git a/Tests/RunCMake/interface_library/RunCMakeTest.cmake b/Tests/RunCMake/interface_library/RunCMakeTest.cmake index 08e81c6c8..201daa7c7 100644 --- a/Tests/RunCMake/interface_library/RunCMakeTest.cmake +++ b/Tests/RunCMake/interface_library/RunCMakeTest.cmake @@ -7,5 +7,4 @@ run_cmake(whitelist) run_cmake(invalid_signature) run_cmake(global-interface) run_cmake(genex_link) -run_cmake(add_dependencies) run_cmake(add_custom_command-TARGET) diff --git a/Tests/RunCMake/interface_library/add_dependencies-result.txt b/Tests/RunCMake/interface_library/add_dependencies-result.txt deleted file mode 100644 index d00491fd7..000000000 --- a/Tests/RunCMake/interface_library/add_dependencies-result.txt +++ /dev/null @@ -1 +0,0 @@ -1 diff --git a/Tests/RunCMake/interface_library/add_dependencies-stderr.txt b/Tests/RunCMake/interface_library/add_dependencies-stderr.txt deleted file mode 100644 index c550b6869..000000000 --- a/Tests/RunCMake/interface_library/add_dependencies-stderr.txt +++ /dev/null @@ -1,6 +0,0 @@ -CMake Error at add_dependencies.cmake:4 \(add_dependencies\): - add_dependencies Cannot add target-level dependencies to INTERFACE library - target "iface". - -Call Stack \(most recent call first\): - CMakeLists.txt:3 \(include\) diff --git a/Tests/RunCMake/interface_library/add_dependencies.cmake b/Tests/RunCMake/interface_library/add_dependencies.cmake deleted file mode 100644 index 12cdfb4ff..000000000 --- a/Tests/RunCMake/interface_library/add_dependencies.cmake +++ /dev/null @@ -1,4 +0,0 @@ - -add_library(foo empty.cpp) -add_library(iface INTERFACE) -add_dependencies(iface foo)