Add an additional include flag to PCH usage command line to fix programs
that rely on `compile_commands.json` file. Pass it to the preprocessor
directly to avoid compiler driver to change it to '-include-pch'.
When preprocessor is requested to preprocess a file, it tries to get
the original filename from '.pch' and uses that file for preprocessing.
CMake generates a '.pch' file from the '.hxx' file by passing an empty
'.cxx' source file to the compiler as a compilation unit and the header
file with the '-include' flag. After that, compiler puts compilation
unit filename in the '.pch' as the original filename.
However, CMake build system uses empty file as the source file and
passes the header file using '-include-pch' flag. As a result, Clang
uses the wrong file for preprocessing and produces the corrupted
preprocessed file.
Fixes: #20355
Signed-off-by: Sergey Larin <cerg2010cerg2010@mail.ru>
e240371ab1 Help: CPackIFWGenerator: explain relation to CPackIWF
78779c6111 Help: Show external link only once per page; explain abbreviation QtIFW.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4348
818ec34bdd file: GLOB_RECURSE VerifyGlobs.cmake should have CMP0009 set to new
b620dc566d file: Fix GLOB_RECURSE LIST_DIRECTORIES documentation regarding CMP0009
715f90bdd9 Tests: Perform minor cleanups in RunCMake.file test
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Kyle Edwards <kyle.edwards@kitware.com>
Merge-request: !4342
Prior to this fix, CMAKE_NMC_DEFAULT_CONFIGS would inherit "all" from
the union of CMAKE_NMC_DEFAULT_BUILD_FILE_CONFIG and
CMAKE_NMC_CROSS_CONFIGS. This is inconsistent with the behavior of the
"all" target signifying CMAKE_NMC_CROSS_CONFIGS. Update "all" in
CMAKE_NMC_DEFAULT_CONFIGS to inherit only from CMAKE_NMC_CROSS_CONFIGS.
8752c1bd64 Merge branch 'backport-3.16-link-line-backtrace'
e756328434 Propagate backtraces from LINK_LIBRARIES through to link line items
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: Dennis Klein <d.klein@gsi.de>
Merge-request: !4344
In certain cases, rebuilds with CMake using the CONFIGURE_DEPENDS flag
with GLOB_RECURSE could result in a reconfigure loop due to CMP0009 not
being propogated to the generated VerifyGlobs.cmake script.
During the inital configuration phase, RecurseThroughSymlinksOn() is
called for recursive glob operations either by having the CMP0009 status
not set to NEW or by explicitly providing the FOLLOW_SYMLINKS flag. At
the end when the VerifyGlobs script is created, the FOLLOW_SYMLINKS flag
is written according to the final resolved form through a call to
GetRecurseThroughSymlinks(). Thus, setting CMP0009 to NEW in the
generated file is safe and allows correct behavior whether or not the
end user sets the policy status to NEW or OLD.
In commit 9fc20a4f3e (install: Add sane set of defaults for DESTINATION
and file type parameters, 2018-11-02, v3.14.0-rc1~410^2~1), a regression
was introduced, in which an `install(TARGETS)` with a
RUNTIME/LIBRARY/ARCHIVE DESTINATION but no PUBLIC_HEADER/PRIVATE_HEADER
DESTINATION would then install the headers. The old behavior did not do
this. Restore the old behavior.
Fixes: #20326
ceb5ee4a7b FindOpenMP: Add support for Clang on Windows
2dbff623f9 FindOpenMP: Save flags/libs in cache entries each time they are detected
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4327
b4d5ea8233 FindMPI: Preserve order of include directories on re-runs of CMake
8261ee3a9c FindMPI: Restore re-construction of include directories
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4341
In commit 5bc6230741 (ExternalProject: Option to turn off recursive
update of git submodules, 2019-10-16) we implemented the feature in the
clone script written by `_ep_write_gitclone_script` but not in the
update script written by `_ep_write_gitupdate_script`. Implement the
latter by factoring out a common helper to use in both places.
Fixes: #20335
Since commit d4d0dd0f6a (cmLinkLineComputer: Add ComputeLinkLibs
overload with backtraces, 2019-09-13, v3.16.0-rc1~87^2~4), backtraces
have been collected by `ComputeLinkLibs` by looking back through the
link implementation libraries for one matching the text of the link line
item. This is slow in projects with long link lines.
Instead, teach `cmComputeLinkDepends` and `cmComputeLinkInformation` to
carry backtrace information explicitly along with the text of each item.
Fixes: #20322
The fix in commit 5861c6d450 (FindMPI: Preserve include order when
extracting component directories, 2019-12-19) only works on the first
run of CMake in which we find MPI. Extend the fix to save the compiler
wrapper's entire include path in our cache without splitting anything
out. That way we can preserve the order when CMake re-runs.
Fixes: #20338
Kyle Edwards