573d51201a GENERATED prop: Set CMP0118 to NEW for some (unrelated) tests
6624b65b3f GENERATED prop: Add implementation for policy CMP0118 being set to NEW
b14fe704f8 GENERATED prop: Simplify determining the language of a source file
ca4ce458a3 GENERATED prop: Check CMP0118 policy and warn in certain situations
0eb30f175e GENERATED prop: Introducing policy CMP0118 and its documentation
78c8d95605 GENERATED prop: Add some tests before introducing changes with CMP0118
e01527619f Simplify code by calling a function directly instead of duplicating it
75cb8615e9 Fix typo in function name
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5308
* Adding implementation for policy CMP0118 being set to `NEW`.
* Adding new tests for policy CMP0118 being set to `NEW`.
* Checking the `GENERATED` property with `get_source_file_property` or
`get_property` now always returns exactly `1` or `0`. No other values
will be returned. Note, that this is a backwards-incompatible change,
even when policy CMP0118 is unset or set to `OLD`.
* Additionally, as `get_source_file_property` and `get_property` now
always check if a source-file was marked globally visible, even when
CMP0118 is unset or set to `OLD`, they possibly return `1` where they
might have returned `0` before the changes introduced by this commit.
Note, that this is a backwards-incompatible change, even when policy
CMP0118 is unset or set to `OLD`.
* As a consequence, the tests for policy CMP0118 being unset or set to
`OLD` got slightly adjusted, too, to reflect these changes in
behavior.
d5b5c192 moved FindMakeProgram() to an earlier time, which resulted
in CMAKE_MAKE_PROGRAM not being read from the toolchain file. Change
it to only call FindMakeProgram() early in the specific cases of
Visual Studio and Xcode, and restore the old behavior for all other
generators.
Fixes: #21486
Since commit 36ded610af (PCH: Generate sources during Compute step,
2019-10-05, v3.16.0-rc1~2^2) the source file lookup is done earlier than
before. Its parent commit f1fb63b306 (file(GENERATE): Create output
file structures even earlier, 2019-10-07, v3.16.0-rc1~2^2~1) prepared
for that. However, that commit did not account for generating and
using files in separate subdirectories.
Fix this by evaluating all generated files before adding automatic
files.
Fixes: #21144
5ece12b7e4 gitlab-ci: add ISPC to the Fedora CI image
8976817d6d ISPC: Update help documentation to include ISPC
2368f46ba4 ISPC: Support building with the MSVC toolchain
e783bf8aa6 ISPC: Support ISPC header generation byproducts and parallel builds
34cc6acc81 Add ISPC compiler support to CMake
419d70d490 Refactor some swift only logic to be re-used by other languages
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5065
f76c20da63 Toolchain: Test compiler initial settings
db486da265 Toolchain: Update documentation for initial compiler flags
deec2f587c Toolchain: Take CMAKE_<lang>_FLAGS_INIT into account during compiler detection
ca899af3e2 Toolchain: Handle repeated invocations of CMake with -DCMAKE_C_COMPILER
12ba89e142 Toolchain: Make `/path/comp;-argn' behave the same as 'comp;-argn'
6f1af899db Toolchain: Capture all arguments from CMAKE_<LANG>_COMPILER
ec1d3bc0b6 cmake: avoid exception when printing "changed variables" message
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4136
Repeated invocations of `cmake ... -DCMAKE_C_COMPILER=gcc` should not
trigger a "You have changed variables" message even though the cache
value of CMAKE_C_COMPILER changes from '/path/to/gcc' to 'gcc'.
Make repeated invocations of `cmake ... -DCMAKE_C_COMPILER=gcc;-pipe`
not trigger the warning by comparing the compiler name portion of the list to
the compiler being used.
This allows for setting EXCLUDE_FROM_ALL, conditional on the build
configuration. However, only the Ninja Multi-Config generator supports
different property values per config. All other multi-config
generators will yield an error in that situation.
Fixes: #20923
Prior to 147d36c, the build tool was found before the toolset was
selected, but was changed to be found after in order to support a
64-bit MSBuild (introduced in da402a0.) However, a bug was found in
64-bit MSBuild, which resulted in da402a0 being reverted in
f3cedf3 (but 147d36c was not reverted.) Move FindMakeProgram() even
earlier than it was before 147d36c, before CMakeDetermineSystem is
called, so that the Visual Studio Android support can report its
sysroot, giving Android-Determine the information it needs to
inspect the NDK.
When the bug in 64-bit MSBuild is fixed, we will have a chicken-and-
egg problem, but we don't need to worry about it for now.
Updated the cmGlobalGenerator::Build method to check the return `retVal`
parameter supplied to the `cmSystemTools::RunSingleCommand` to validate
that each invocation of the build command returned an exit code of zero.
Fixes: #20790
Since commit 729d997f10 (Precompile Headers: Add REUSE_FROM signature,
2019-08-30, v3.16.0-rc1~101^2), `GetPchFileObject` handles the case that
it is called first for another target's `REUSE_FROM` by calling
`AddSource` to make sure `GetObjectName` can produce the correct object
name. However, `AddSource` causes `ClearSourcesCache` to be called,
which since commit a9f4f58f0c (cmGeneratorTarget: Clear AllConfigSources
in ClearSourcesCache, 2020-05-15, v3.16.7~2^2) now correctly erases the
`AllConfigSources` structure. This is okay during `AddPchDependencies`,
but there is another code path in which it is problematic.
When the Visual Studio generator's `WriteAllSources` method is looping
over the sources, the `cmake_pch.cxx` source is encountered first. This
causes `OutputSourceSpecificFlags` to call `GetPchCreateCompileOptions`,
which calls `GetPchFile`, which under MSVC with `CMAKE_LINK_PCH` calls
`GetPchFileObject`. That leads to `ClearSourcesCache` erasing the
structure over which `WriteAllSources` is iterating!
This bug is caught by our `RunCMake.PrecompileHeaders` test when run
with the VS generator as of the commit that exposed it by fixing
`ClearSourcesCache`. However, that change was backported to the CMake
3.16 series after testing only with later versions versions that contain
commit a55df20499 (Multi-Ninja: Add precompile headers support,
2020-01-10, v3.17.0-rc1~136^2). By adding proper multi-config support
for PCH, that commit taught `cmLocalGenerator::AddPchDependencies` to
call `GetPchFile` with the real set of configurations instead of just
the empty string. This allows the `GetPchFile` cache of PCH sources to
be populated up front so that the later calls to it in the
`WriteAllSources` loop as described above do not actually call
`GetPchFileObject` or `ClearSourcesCache`. That hid the problem.
Fix this by re-ordering calls to `AddPchDependencies` to handle
`REUSE_FROM` targets only after the targets whose PCH they re-use.
Remove the now-unnecessary call to `AddSource` from `GetPchFileObject`
so that `ClearSourcesCache` is never called during `WriteAllSources`.
Update the PchReuseFrom test case to cover an ordering of targets that
causes generators to encounter a `REUSE_FROM` target before the target
whose PCH it re-uses.
Fixes: #20770
Refactoring in commit 01b2d6ab74 (Modernize: Use ranged for-loops when
possible, 2019-02-07, v3.15.0-rc1~575^2) accidentally changed a loop
condition in this method from "keep iterating if srcs.empty()" to
"stop iterating if srcs.empty()". Switch it back.
The bug could only manifest in very subtle conditions in a multi-config
generator. Add one such case to the test suite.
Fixes: #20706
