Treat OBJECT libraries as STATIC libraries. The Xcode project file
format provides no way to avoid running the libtool so hide the
resulting .a 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.
Necessary for the Xcode generator, in which the CMakeLists.txt
files are added as sources merely for convenient access, without
any associated custom command.
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.
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.
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.
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.
Rename cmGlobalGenerator::GetCMakeCFG{InitDirectory => IntDir} to
have a shorter name without a typo. Add a 'const' qualifier since
the method is only for lookup and never needs to modify anything.
Implement cmGlobalGenerator::ComputeTargetObjects in the VS generator
to pre-compute all the object file names. Use the results during
generation instead of re-computing it later.
Add a virtual cmGlobalGenerator::ComputeTargetObjects method invoked
during cmGeneratorTarget construction. Implement it in the Makefile
generator to pre-compute all object file names for each target. Use
the results during generation instead of re-computing it later.
Construct the instances after the final set of targets is known but
before computing inter-target dependencies. This order will allow
initialization of cmGeneratorTarget instances to adjust and finalize
declared inter-target dependencies.
Some per-target information and logic is common to all generators.
Some of that information is currently stored in cmTarget but that
should be reserved for the configure step. Create a class to hold
per-target information for generators. On construction classify
sources from the target and store them in separate members. This
classification is already implemented separately in each generator.
b28e7fa VS6: Avoid SBCS test on VS6 (#12189)
df19b9c VS6: Avoid _MBCS define when _SBCS is defined (#12189)
ba89e92 Visual Studio: Allow setting Single Byte Character Set (#12189)
d662dff Fix shadowed variable warning on dashboard results
f66e735 Fix compiler warning reported on older Borland dashboard.
d90eed4 Fix compiler error reported on older Borland dashboard.
8233636 Update the documentation regarding INCLUDE_DIRECTORIES.
d899eb7 Call ExpandVariablesInString for each target's INCLUDE_DIRECTORIES
c21db87 Make search paths ordered and unique
22021f0 Remove cmMakefile::GetIncludeDirectories
9106b56 Extract and use the INCLUDE_DIRECTORIES target properties.
840509b Keep the INCLUDE_DIRECTORIES target property up to date.
a4d5f7b Add API to get the ordered includes for a target.
8adaee2 CMake: Eliminate cmMakefile::IncludeDirectories
7620932 Remove include flags memoization.
97a5faa Make it safe to call this method without creating duplicates.
edd5303 Refactor GetIncludeFlags to take includes instead of fetching them
The function configure_package_config_file() may be used instead of
configure_file() for generating the Config.cmake files for installation,
they help to make those files relocatable.
Alex
The previous commit, df19b9ca, assumed that the corresponding
_UNICODE functionality in the VS6 generator actually worked.
That turns out not to be the case. Unicode definition does not
actually suppress _MBCS definition, so neither does this new
code...
Don't test it here, since the patch submitter for _SBCS does
not need VS6 support.
If somebody needs _UNICODE and _SBCS support to suppress the
definition of _MBCS in the VS6 generator, it is work yet to do.
Patches welcome.
Brad King
David Cole
KWSys Robot
Clinton Stimpson
Alex Neundorf