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* Fix dependencies on targets linked through object librariesBrad King2020-03-041-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an object library is used via `target_link_libraries`, any targets listed in the object library's `INTERFACE_LINK_LIBRARIES` closure should become direct dependencies of the consuming target. However, these were accidentally left out by `cmComputeTargetDepends::CollectTargetDepends` because object libraries are encountered through external object sources first and then added to the `emitted` set which blocks them from being processed as link dependencies. This was not noticed by the test case in commit bab24e782c (target_link_libraries: Propagate dependencies of object libraries, 2018-12-10, v3.14.0-rc1~260^2) because the relevant dependency appears transitively through the object library target itself. Re-order the logic to process link dependencies first, and then external object sources. That way object libraries used via `target_link_libraries` will be treated as such by dependency analysis. This also adds missing backtrace information for object libraries used via `target_link_libraries`. The missing information was mentioned in a FIXME comment in the RunCMake.FileAPI test added by commit ea0a060168 (fileapi: Add test for codemodel v2, 2018-11-09, v3.14.0-rc1~257^2~7). That comment itself was dropped by commit a0de350e2f (FileAPI test: Break gen_check_targets() into JSON files, 2020-02-07), but we can now update the corresponding location in the `.json` files to have the now-expected backtrace information. Fixes: #20421
* Tests: Extend ObjectLibrary test with case for object lib dependenciesBrad King2020-03-045-0/+24
| | | | | | Add the test case from commit bab24e782c (target_link_libraries: Propagate dependencies of object libraries, 2018-12-10, v3.14.0-rc1~260^2) to the main ObjectLibrary test.
* Relax the usage of TARGET_OBJECTS generator expressionRobert Maynard2019-04-191-0/+10
| | | | | The geneator expression can now be used with static, shared, and module libraries and executables.
* Revise C++ coding style using clang-format-6.0Kitware Robot2018-06-014-12/+12
| | | | | | | | | | | | Run the `clang-format.bash` script to update all our C and C++ code to a new style defined by `.clang-format`. Use `clang-format` version 6.0. * If you reached this commit for a line in `git blame`, re-run the blame operation starting at the parent of this commit to see older history for the content. * See the parent commit for instructions to rebase a change across this style transition commit.
* Drop Visual Studio 7 .NET 2003 generatorBrad King2017-04-191-5/+1
| | | | This generator has been deprecated since CMake 3.6. Remove it.
* Fix COMPILE_PDB_NAME when used on an OBJECT libraryBrad King2017-02-241-0/+1
| | | | | | | | When `COMPILE_PDB_NAME` is used without `COMPILE_PDB_OUTPUT_DIRECTORY` we cannot fall back on the link `PDB_OUTPUT_DIRECTORY` for an object library because it has no link step. Fixes: #16674
* Revise C++ coding style using clang-formatKitware Robot2016-05-1611-34/+40
| | | | | | | | | | | | | Run the `Utilities/Scripts/clang-format.bash` script to update all our C++ code to a new style defined by `.clang-format`. Use `clang-format` version 3.8. * If you reached this commit for a line in `git blame`, re-run the blame operation starting at the parent of this commit to see older history for the content. * See the parent commit for instructions to rebase a change across this style transition commit.
* Drop Visual Studio 6 generatorBrad King2016-03-095-14/+5
| | | | | | This generator has been deprecated since CMake 3.3. Remove it. Update documentation, modules, and tests to drop content specific to this generator.
* add_library: Allow arbitrary non-linked sources in OBJECT librariesBrad King2014-07-092-1/+13
| | | | | | | | | | | Loosen this restriction on OBJECT libraries to allow source files of any name to be generated by custom commands or listed for reference in IDE projects so long as they would not affect linking of a normal library. Update the rejection message to be more specific about the looser restriction. Extend the ObjectLibrary test to cover a ".cmake" file generated by a custom command in an OBJECT library.
* Tests: Fix broken dependency in ObjectLibrary testBrad King2014-07-071-1/+1
| | | | The add_custom_command DEPENDS option needs a full path.
* Tests: Resolve TODO comment left in ObjectLibrary testBrad King2014-07-072-8/+2
| | | | | We now have a generic way to add -fPIC without explicitly modifying CMAKE_C_FLAGS, so use it.
* Ninja: Add order-only dependencies to link commands (#14728)Ben Boeckel2014-07-011-0/+6
| | | | | | | | | | | | | A library or executable target that consists only of a reference to an object library may have no sources to compile or custom commands to run. The command in the target is the link (or archive) command. Add missing order-only dependencies to link commands so that target ordering dependencies are satisfied for it without depending on an intermediate compilation rule. Extend the ObjectLibrary test to cover this case. Co-Author: Brad King <brad.king@kitware.com>
* Make ExportLanguages a subtest of the ObjectLibrary testStephen Kelly2013-10-245-0/+33
| | | | | | It was a subtest of the RunCMake.ObjectLibrary test. However, we need to test a build with ExternalProject after running CMake, which RunCMake tests do not do.
* Make sure INTERFACE properties work with OBJECT libraries.Stephen Kelly2013-02-084-6/+23
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* Whitelist target types in target_{include_directories,compile_definitions}Stephen Kelly2013-02-081-1/+1
| | | | | Setting include directories or compile definitions on a target created with add_custom_target does not make sense.
* Tests/ObjectLibrary: Do not enable CXX in subdirectoriesBrad King2012-08-202-2/+2
| | | | | | | | In commit b237dbd8 (Xcode: Fix object library references in multi-project trees, 2012-08-03) we accidentally enabled CXX in the subdiretories of this test by invoking project() with only one argument. The top-level directory of the test enables only C, so do this in the subdirectories too.
* Xcode: Fix object library references in multi-project trees (#13452)Brad King2012-08-032-0/+2
| | | | | | | | | | | | | | | | | In cmGlobalXCodeGenerator::Generate we generate a .xcodeproj for each directory in the tree containing a project() command. First we iteratively use SetGenerationRoot to add "ALL_BUILD" and other targets to each project. This leaves "CurrentProject" set to the last project when we invoke cmGlobalGenerator::Generate, which is not the same as the top-level project if any subdirectories invoke the project() command. When cmGlobalGenerator::Generate reaches CreateGeneratorTargets it constructs cmGeneratorTarget and calls ComputeTargetObjects exactly once per target. In this context the value of CurrentProject is undefined so we cannot pass it to GetObjectsNormalDirectory. Use "$(PROJECT_NAME)" instead so it will adapt automatically to each project. Also teach Tests/ObjectLibrary to cover this case.
* Fix ObjectLibrary test on WatcomBrad King2012-03-204-12/+12
| | | | | | | | | | | | | | The Watcom compiler interprets "-DB" as option -db generate browsing information so define "A_DEF" and "B_DEF" instead of just "A" and "B". Skip CMAKE_SHARED_LIBRARY_C_FLAGS for Watcom because it is set to -bd build Dynamic link library which adds a DLL entry point to each object.
* Test OBJECT library use without other sourcesBrad King2012-03-165-0/+64
| | | | | | | | | | | | Reference OBJECT libraries for inclusion in targets that have no other sources to verify that the linker language propagates correctly from the object libraries. Test with a STATIC library, a SHARED library, and an EXECUTABLE target. Use the static and shared libraries each in executables that end up using the object library symbols. In VS 6, 7, and 7.1 add a dummy object file to convince the IDE to build the targets without sources. In Xcode add a dummy source file to convince it to build targets without sources.
* Test OBJECT library success casesBrad King2012-03-1613-0/+110
Add "ObjectLibrary" test to build and use OBJECT libraries. Build multiple object libraries in separate directories with different flags. Use a custom command to generate a source file in one OBJECT library. Reference the OBJECT libraries for inclusion in a STATIC library, a SHARED library, and an EXECUTABLE target. Use the static and shared libraries each in executables that end up using the object library symbols. Verify that object library symbols are exported from the shared library.
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