Necessary for the Xcode generator, in which the CMakeLists.txt
files are added as sources merely for convenient access, without
any associated custom command.
Implement cmGlobalGenerator::ComputeTargetObjects in the Ninja generator
to pre-compute all the object file names. Use the results during
generation instead of re-computing it later.
Describe the OBJECT library signature of add_library and the
$<TARGET_OBJECTS:...> expressions needed to use object libraries.
Also document the what is not allowed for object library targets.
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.
Teach the RunCMake.ObjectLibrary test to verify that languages used in
an OBJECT library are propagated to targets that use it so that the
languages can be included in link analysis.
Add "RunCMake.ObjectLibrary" test to verify that unsupported use cases
are rejected with errors:
* An OBJECT library may not reference another object library
* An OBJECT library may not be referenced in target_link_libraries
* An OBJECT library may not contain non-compiling sources
* An OBJECT library may not have pre/post build/link commands
* An OBJECT library may not be installed, exported, or imported
Also verify that invalid $<TARGET_OBJECTS:...> expressions are
diagnosed.
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.
For now do not allow an OBJECT library to reference other object
libraries. Teach cmTarget::ComputeLinkImplementation to include the
languages of object libraries used by a target.
The write code introduced by commit 0b0d1b1d (add CMakeCache.txt
support, 2001-02-22) uses a temporary file but does not replace the
original atomically. Use cmGeneratedFileStream to do both
copy-if-different and atomic replacement.
Before, find_package in Config mode always set Foo_FOUND to true if the
Config file has been found and could be executed.
If the Config file itself detected some problem, like a missing dependency,
it did not have a way to signal to the outside that the package is not working.
With this patch, if a Config file sets Foo_FOUND to FALSE, this is taken into
account and not overridden.
Alex
Treat OBJECT libraries as STATIC libraries. The VS project file format
provides no way to avoid running the librarian so hide the resulting
.lib away next to the object files as it should never be referenced.
The object files will be left behind for reference by other targets
later.
This library type can compile sources to object files but does not link
or archive them. It will be useful to reference from executable and
normal library targets for direct inclusion of object files in them.
Diagnose and reject the following as errors:
* An OBJECT library may not be referenced in target_link_libraries.
* An OBJECT library may contain only compiling sources and supporting
headers and custom commands. Other source types that are not normally
ignored are not allowed.
* An OBJECT library may not have PRE_BUILD, PRE_LINK, or POST_BUILD
commands.
* An OBJECT library may not be installed, exported, or imported.
Some of these cases may be supported in the future but are not for now.
Teach the VS generator that OBJECT_LIBRARY targets are "linkable" just
like STATIC_LIBRARY targets for the LinkLibraryDependencies behavior.
On machines where a usr/bin/packagemaker symlink is found, we were
unable to find the version.plist file relative to the symlink.
Resolve the symlink first, so we can find it relative to the
real PackageMaker.
55b2aa8 Use generalized RunCMake test infrastrucure for build_command test
eb33000 Use generalized RunCMake test infrastrucure for find_package test
42a81e7 Add stronger infrastructure for CMake-only tests
Add cmGeneratorTarget::ObjectDirectory member to hold the value. In
ComputeTargetObjects set the value to the full path to the target object
directory including any necessary placeholder for the configuration
name.
CMake does not automatically pass the Fortran module output directory
location to the module search path. Add a note to the documentation
that the location must also be specified by INCLUDE_DIRECTORIES.
The CMakeCommands.build_command test performs output/error checking
so move it over to RunCMake to re-use the generalized infrastrucure.
This is the only test left using Tests/CMakeCommands/CMakeLists.txt
so remove it.
The CMakeOnly directory added by commit 9a20abf0 (Add infrastructure for
CMake-only tests, 2012-01-11) was sufficient only for tests that always
run CMake to successfully configure a project. Later commit eeaaffcb
(find_package: Test error and warning messages in failure cases,
2012-02-28) added a sample test that covers failure cases.
Generalize the above to create new "RunCMake" test infrastructure that
can run CMake multiple times for a single project with different
variations and check for expected result/stdout/stderr. Allow for both
successful and failing CMake project configuration cases. This will be
useful to test error messages and failure behavior.
David Cole
Brad King
Bill Hoffman
KWSys Robot
Alex Neundorf
Peter Kuemmel