In GNU.cmake, -isystem is not used if APPLE is set. However, Clang has
pretty much always supported -isystem, so we should always use it.
In the future, GNU.cmake should do a version check to see if -isystem is
supported.
8dfdf1c Fix the tests for evaluating includes and defines.
98a6725 Fix constness of accessors.
7e70744 Expand includes and defines transitively in 'external' genexes.
d1a2729 Fix DAG checker finding cycling dependencies.
e72eaad Workaround broken code where a target has itself in its link iface.
ec2c67b Strip stray semicolons when evaluating generator expressions.
236133e Handle targets in the LINK_LIBRARIES of try_compile.
1c0597c Add a new Export generator for IMPORTED targets.
f2ab17d Keep track of all targets seen while evaluating a genex.
55f0148 ExternalData: Test content link with a space in its name
d45eb35 Tests: Generalize decision for 'make' tool supporting spaces
ef8b2fd Tests: Replace exec_program with execute_process
This is similar in spirit to commit e48d8420 (Cache context-independent
includes on evaluation., 2013-02-03), but it is needed since commit
a1c4905f (Use the link information as a source of compile definitions
and includes., 2013-02-12), which changed how includes and defines
are determined. As they are now determined through the link interface,
we need to cache the result of evaluating them through that.
In the case of the includes, the result was already being cached
and then immediately disposed. Store the result as a member variable
instead to make use of the caching.
We should also check whether the INTERFACE_ variant of a property
is being read, and in the case of the compile definitions, we should
test the _<CONFIG> suffixed variants. That is already available
through the use of the methods.
This way, we use the ALREADY_SEEN optimization when evaluating
the includes of a target in 'external' generator expressions, ie, those
used in a add_custom_command invokation, as opposed to evaluating the
INCLUDE_DIRECTORIES of a target itself via GetIncludeDirectories.
This means that we can use expressions of the form
$<TARGET_PROPERTY:foo,INTERFACE_INCLUDE_DIRECTORIES>
to get a list of the interface include directories of foo, including
those coming from dependencies.
We can't have a test of a target which has a single include directory in
its INCLUDE_DIRECTORIES because the shell on the MSYS platforms transforms
a single include directory to include a prefix, which is not what the test
expects. We test a target with two directories instead as a means to
test a target with no link dependencies.
Before this patch, the following is reported falsely as a self-reference:
target_link_libraries(empty2 LINK_PUBLIC empty3)
target_link_libraries(empty3 LINK_PUBLIC empty2)
add_custom_target(...
-DINCLUDES=$<TARGET_PROPERTY:empty2,INTERFACE_INCLUDE_DIRECTORIES>
)
The reason is that the existing code assumed that all reading of
include directories would be done through cmTarget::GetIncludeDirectories()
and would therefore be initialized with a DagChecker. That is not the case
if reading the property with an 'external' generator expression.
There is a test for this since commit 8e756d2b (Tolerate cycles in
shared library link interfaces (#12647), 2012-01-12), so make sure
it continues to pass, even as we require no self-references in new
INTERFACE_ property generator expressions.
In commit bed6c388 (VS,Xcode: Remove unused CMAKE_GENERATOR_* variables,
2013-02-19) we removed this variable among others from the VS generator
claiming they were all not used. In fact the Fortran compiler detection
module CMakeDetermineFortranCompiler.cmake uses CMAKE_GENERATOR_FC even
for the Visual Studio IDE generators because it does not use the full
IDE compiler id detection like the C and C++ language files do.
Move the Tests/FPHSA_InvalidFOUND_VAR test case over to a new
RunCMake.FPHSA test with a BadFoundVar case. The RunCMake tests are
built to cover failure cases easily and robustly.
Imported targets are re-exported so that they can be used by the
try_compile generated code with target_link_libraries.
This makes the use of the cmake_expand_imported_targets macro
obsolete. The macro is not able to expand the generator expressions
which may appear in the IMPORTED_LINK_INTERFACE_LIBRARIES content.
Instead it just sees them as 'not a target'.
In the new mode FPHSA now accepts a FOUND_VAR option, which can be set
either to ExactCase_FOUND or UPPERCASE_FOUND, no other values are
accepted. Also add tests for that, including failure.
Alex
Previously, GetIncludeDirectories was called before calling
target->AddSourceFile(mocCppSource). Since commit a1c4905f (Use the
link information as a source of compile definitions and
includes., 2013-02-12), the include directories are determined by
the link information.
Valid link information requires that the linker language can be
determined, which depends on the source files languages and the
dependent targets languages. In the case of the no_link_languages
target in the unit test, there are no dependencies and the additional
source file no_link_languages_automoc.cpp is added to the target
at generate-time. That file can be used to determine the linker
language, but it must be added to the target before calling
GetIncludeDirectories.
Extend the Module.ExternalData test to cover a DATA{} reference whose
name contains a space. Skip the case when the native build tool does
not support spaces.
Some make tools do not support spaces inside the source tree paths.
Decide early whether to add tests that depend on support for spaces so
we can use the result in a decision for any test.
Instead of generating a whole bunch of repeated if-statements
now a foreach()-loop is generated in the targets-file.
Also now a comment is inserted in the generated file if no
targets from other export sets are used, so if somebody looks
at the file he can see whether the information about missing
imported targets has been generated or not.
Alex
e83e6a1 Test Unix Makefiles generator support for changing compilers
c307e1c Tests/RunCMake: Allow tests to control build tree behavior
2963c98 Merge branch 'empty-compiler-crash' into compiler-change-cleanup
1df09e5 Delete entire CMakeFiles directory when deleting CMakeCache.txt (#13756)
Add RunCMake.CompilerChange test to cover use of -DCMAKE_C_COMPILER=cc
to change the compiler of an existing build tree. Also test for proper
failure with -DCMAKE_C_COMPILER="" and no CC in the environment.
Generate a unique PBXTargetDependency and PBXContainerItemProxy for
every edge in the dependency graph as required by the Xcode format.
Xcode only accidentally loads project files that re-use the same
PBXTargetDependency for every edge leading to a single target. If one
is removed by hand in the IDE then Xcode may crash due to dangling
references from the others.
Since cmGlobalXCodeGenerator::AddDependTarget is called exactly once for
every edge in the target dependency graph we do not need to keep track
of which edges have been visited to avoid generating duplicates.
Ben Boeckel
Kitware Robot
Brad King
Stephen Kelly
Alex Neundorf
Marcus D. Hanwell