Commit Graph

620 Commits

Author SHA1 Message Date
David Tenty a8d13df412 Build with _XOPEN_SOURCE defined on AIX
Summary:
It is useful to build with _XOPEN_SOURCE defined on AIX, enabling X/Open
and POSIX compatibility mode, to work around stray macros and other
bugs in the headers provided by the system and build compiler.

This patch adds the config to cmake to build with _XOPEN_SOURCE defined
on AIX with a few exceptions. Google Test internals require access to
platform specific thread info constructs on AIX so in that case we build
with _ALL_SOURCE defined instead. Libclang also uses header which needs
_ALL_SOURCE on AIX so we leave that as is as well.

We also add building on AIX with the large file API and doing CMake
header checks with X/OPEN definitions so the results are consistent with
the environment that will be present in the build.

Reviewers: hubert.reinterpretcast, xingxue, andusy

Reviewed By: hubert.reinterpretcast

Subscribers: mgorny, jsji, cfe-commits, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D62533

llvm-svn: 362808
2019-06-07 15:45:25 +00:00
David Zarzycki c73c10a9bf Unbreak my hasty "unbreak" cmake fix
llvm-svn: 362492
2019-06-04 11:33:49 +00:00
David Zarzycki 082d99f58c Unbreak non-PIC builds after r362390 / D62720
llvm-svn: 362399
2019-06-03 13:39:49 +00:00
Don Hinton ccbda6b000 [test] Fix plugin tests
Recommit of r361790 that was temporarily reverted in r361793 due to bot breakage.

Summary:
The following changes were required to fix these tests:

1) Change LLVM_ENABLE_PLUGINS to an option and move it to
   llvm/CMakeLists.txt with an appropriate default -- which matches
   the original default behavior.

2) Move the plugins directory from clang/test/Analysis
   clang/lib/Analysis.  It's not enough to add an exclude to the
   lit.local.cfg file because add_lit_testsuites recurses the tree and
   automatically adds the appropriate `check-` targets, which don't
   make sense for the plugins because they aren't tests and don't
   have `RUN` statements.

   Here's a list of the `clang-check-anlysis*` targets with this
   change:

```
  $ ninja -t targets all| sed -n "s/.*\/\(check[^:]*\):.*/\1/p" | sort -u | grep clang-analysis
  check-clang-analysis
  check-clang-analysis-checkers
  check-clang-analysis-copypaste
  check-clang-analysis-diagnostics
  check-clang-analysis-engine
  check-clang-analysis-exploration_order
  check-clang-analysis-html_diagnostics
  check-clang-analysis-html_diagnostics-relevant_lines
  check-clang-analysis-inlining
  check-clang-analysis-objc
  check-clang-analysis-unified-sources
  check-clang-analysis-z3
```

3) Simplify the logic and only include the subdirectories under
   clang/lib/Analysis/plugins if LLVM_ENABLE_PLUGINS is set.

Reviewed By: NoQ

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D62445

llvm-svn: 362328
2019-06-02 15:53:43 +00:00
Petr Hosek 84254dd8ab [CMake] Use libtool for runtimes when building for Apple platform
LLVM CMake build already uses libtool instead of ar when building
for Apple platform and we should be using the same when building
runtimes. To do so, this change extracts the logic for finding
libtool into a separate file and then uses it from both the LLVM
build as well as the LLVM runtimes build.

Differential Revision: https://reviews.llvm.org/D62769

llvm-svn: 362313
2019-06-02 02:05:01 +00:00
Alexandre Ganea 9bf766c573 Revert r361826, as it still breaks LLDB.
llvm-svn: 361837
2019-05-28 15:04:39 +00:00
Alexandre Ganea c4eee4054a [CMake] Default options for faster executables on MSVC
Differential Revision: https://reviews.llvm.org/D55056

llvm-svn: 361826
2019-05-28 14:14:48 +00:00
Don Hinton 102b4b2486 Revert [test] Fix plugin tests
This reverts r361790 (git commit fe5eaab2b5)

It's causing buildbot breakage, so reverting while I investigate.

llvm-svn: 361793
2019-05-28 06:38:16 +00:00
Don Hinton fe5eaab2b5 [test] Fix plugin tests
Summary:
The following changes were required to fix these tests:

1) Change LLVM_ENABLE_PLUGINS to an option and move it to
   llvm/CMakeLists.txt with an appropriate default -- which matches
   the original default behavior.

2) Move the plugins directory from clang/test/Analysis
   clang/lib/Analysis.  It's not enough to add an exclude to the
   lit.local.cfg file because add_lit_testsuites recurses the tree and
   automatically adds the appropriate `check-` targets, which don't
   make sense for the plugins because they aren't tests and don't
   have `RUN` statements.

   Here's a list of the `clang-check-anlysis*` targets with this
   change:

```
  $ ninja -t targets all| sed -n "s/.*\/\(check[^:]*\):.*/\1/p" | sort -u | grep clang-analysis
  check-clang-analysis
  check-clang-analysis-checkers
  check-clang-analysis-copypaste
  check-clang-analysis-diagnostics
  check-clang-analysis-engine
  check-clang-analysis-exploration_order
  check-clang-analysis-html_diagnostics
  check-clang-analysis-html_diagnostics-relevant_lines
  check-clang-analysis-inlining
  check-clang-analysis-objc
  check-clang-analysis-unified-sources
  check-clang-analysis-z3
```

3) Simplify the logic and only include the subdirectories under
   clang/lib/Analysis/plugins if LLVM_ENABLE_PLUGINS is set.

Reviewed By: NoQ

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D62445

llvm-svn: 361790
2019-05-28 06:26:58 +00:00
Hans Wennborg 0f40585d2d Cmake: allow using LLVM_EXTERNAL_PROJECTS with LLVM_ENABLE_PROJECTS
The current code iterates over the combination of LLVM_EXTERNAL_PROJECTS
and LLVM_ENABLE_PROJECTS, but then disables projects that are only in
the former. If a project is in LLVM_EXTERNAL_PROJECTS, it should be
enabled.

See also llvm-commits thread on r354060.

Differential revision: https://reviews.llvm.org/D62289

llvm-svn: 361751
2019-05-27 09:03:00 +00:00
Saleem Abdulrasool ca5ed496b1 build: enable CMake policy 0077
Enable CMake policy 77. This alters the behavior of option. The old behavior
would remove the value of the option from the cache and create a new one. The
new behavior does not create the variable if it is defined already. This ensures
that subsequent reconfigures will behave identically. This seems better than the
setting of OLD - the desire is to ensure that it is set to OLD or NEW.

llvm-svn: 361307
2019-05-21 20:28:32 +00:00
Saleem Abdulrasool a7c766b51d build: add option to disable unwind tables
The unwind tables (`.eh_frame`, `.arm.extab`) add a significant chunk of data to
the final binaries.  These should not be needed normally, particularly when
exceptions are disabled.  This enables shrinking `lldb-server` by ~18% (3 MiB)
when built with gold.

llvm-svn: 359819
2019-05-02 19:37:26 +00:00
Justin Bogner c60d09597c [CMake] Move configuration of LLVM_CXX_STD to HandleLLVMOptions.cmake
Standalone builds of projects other than llvm itself (lldb, libcxx,
etc) include HandleLLVMOptions but not the top level llvm CMakeLists,
so we need to set this variable here to ensure that it always has a
value.

This should fix the build issues some folks have been seeing.

llvm-svn: 357976
2019-04-09 08:14:32 +00:00
Justin Bogner 25de7691a0 [CMake] Replace LLVM_ENABLE_CXX1Y and friends with LLVM_CXX_STD
Simplify building with particular C++ standards by replacing the
specific "enable standard X" flags with a flag that allows specifying
the standard you want directly.

We preserve compatibility with the existing flags so that anyone with
those flags in existing caches won't break mysteriously.

Differential Revision: https://reviews.llvm.org/D60399

llvm-svn: 357899
2019-04-08 10:19:17 +00:00
Mikhail R. Gadelha db695c834f Moved everything SMT-related to LLVM and updated the cmake scripts.
Differential Revision: https://reviews.llvm.org/D54978

llvm-svn: 356929
2019-03-25 17:47:45 +00:00
Serge Guelton d2f2f33ef2 Use response file when generating LLVM-C.dll
As discovered in D56774 the command line gets to long, so use a response file
to give the script the libs. This change has been tested and is confirmed
working for me.

Commited on behalf of Jakob Bornecrantz.
Differential Revision: https://reviews.llvm.org/D56781

llvm-svn: 356443
2019-03-19 09:14:09 +00:00
Shoaib Meenai 7a462ab7ae [cmake] Remove llvm from LLVM_ALL_PROJECTS
LLVM is always built; including it in LLVM_ENABLE_PROJECTS has no
effect, but since it's in LLVM_ALL_PROJECTS, we produce a confusing
message about it being disabled. Drop it from LLVM_ALL_PROJECTS to avoid
this. Pointed out by David Greene on the mailing list [1].

[1] http://lists.llvm.org/pipermail/llvm-dev/2019-March/130854.html

llvm-svn: 355735
2019-03-08 21:10:22 +00:00
Rong Xu 05c0afe842 [PGO] Context sensitive PGO (part 4)
Part 4 of CSPGO changes:
(1) add support in cmake for cspgo build.
(2) fix an issue in big endian.
(3) test cases.

Differential Revision: https://reviews.llvm.org/D54175

llvm-svn: 355541
2019-03-06 19:31:37 +00:00
David Greene 3b9141df25 [CMake] Honor LLVM_EXTERNAL_<proj>_SOURCE_DIR
When LLVM_ENABLE_PROJECTS is set, CMake assumes the project
directories are all side-by-side. This is not always the case and
there's no reason to expect it if LLVM_EXTERNAL_<proj>_SOURCE_DIR is
set. Honor that setting if it exists and allow the build configuration
to continue.

Differential Revision: https://reviews.llvm.org/D49672

llvm-svn: 354693
2019-02-22 21:19:48 +00:00
Chris Bieneman e8d95ad9ae [CMake] Fix ability to use LLVM_ENABLE_PROJECTS with LLVM_EXTERNAL_PROJECTS
LLVM r353148, changed the circumstances in which the project source directory variables are created to only create them for LLVM projects. This patch initializes the directory variables for projects specified in `LLVM_EXTERNAL_PROJECTS` as well.

llvm-svn: 354060
2019-02-14 20:57:17 +00:00
Nico Weber 04a1ee4660 Stop enabling clang-tools-extra automatically when clang is in LLVM_ENABLE_PROJECTS
If you want to build clang-tools-extra with monorepo, just add it to
LLVM_ENABLE_PROJECTS like with other projects.

See also "Separating clang-tools-extra from clang in LLVM_ENABLE_PROJECTS"
on cfe-dev.

Differential Revision: https://reviews.llvm.org/D58157

llvm-svn: 354057
2019-02-14 20:26:35 +00:00
Mikhail R. Gadelha 3289ccd848 This reverts commit 1440a848a635849b97f7a5cfa0ecc40d37451f5b.
and commit a1853e834c65751f92521f7481b15cf0365e796b.

They broke arm and aarch64

llvm-svn: 353590
2019-02-09 00:46:12 +00:00
JF Bastien 388cefa78d Bump minimum toolchain version
Summary:
The RFC on moving past C++11 got good traction:
  http://lists.llvm.org/pipermail/llvm-dev/2019-January/129452.html

This patch therefore bumps the toolchain versions according to our policy:
  llvm.org/docs/DeveloperPolicy.html#toolchain

Subscribers: mgorny, jkorous, dexonsmith, llvm-commits, mehdi_amini, jyknight, rsmith, chandlerc, smeenai, hans, reames, lattner, lhames, erichkeane

Differential Revision: https://reviews.llvm.org/D57264

llvm-svn: 353374
2019-02-07 05:20:00 +00:00
Mikhail R. Gadelha eac500f0c3 Move the SMT API to LLVM
Moved everything SMT-related to LLVM and updated the cmake scripts.

Differential Revision: https://reviews.llvm.org/D54978

llvm-svn: 353373
2019-02-07 03:19:45 +00:00
Shoaib Meenai 18f0bd78e2 [cmake] Drop clang-tools-extra from LLVM_ALL_PROJECTS
We iterate over the list and only enable projects from that list that
are present in LLVM_ENABLE_PROJECTS and disable all other projects. Most
users will only specify clang in LLVM_ENABLE_PROJECTS and expect
clang-tools-extra to be implicitly enabled, so remove clang-tools-extra
from LLVM_ALL_PROJECTS so that it doesn't get disabled instead.

llvm-svn: 353354
2019-02-07 01:12:56 +00:00
Shoaib Meenai 351314a14f [cmake] Add all subprojects to LLVM_ALL_PROJECTS
Make LLVM_ALL_PROJECTS reflect all top-level directories in the monorepo
rather than an arbitrary subset. clang-tools-extra is technically
unnecessary since it gets enabled by clang, but having it there for
consistency shouldn't hurt either.

Differential Revision: https://reviews.llvm.org/D57843

llvm-svn: 353346
2019-02-06 21:49:47 +00:00
Shoaib Meenai af8eadd94e [cmake] Add openmp to LLVM_ALL_PROJECTS
It'll get ignored in LLVM_ENABLE_PROJECTS after r353148 otherwise.

llvm-svn: 353343
2019-02-06 21:08:17 +00:00
Petr Hosek 23fdd5a37f [CMake] Unify scripts for generating VCS headers
Previously, there were two different scripts for generating VCS headers:
one used by LLVM and one used by Clang and lldb. They were both similar,
but different. They were both broken in their own ways, for example the
one used by Clang didn't properly handle monorepo resulting in an
incorrect version information reported by Clang.

This change unifies two the scripts by introducing a new script that's
used from both LLVM, Clang and lldb, ensures that the new script
supports both monorepo and standalone SVN and Git setups, and removes
the old scripts.

Differential Revision: https://reviews.llvm.org/D57063

llvm-svn: 353268
2019-02-06 03:51:00 +00:00
Dan Liew de5220ed5e Previously if the user configured their build but then changed
LLVM_ENABLED_PROJECT and reconfigured it had no effect on what
projects were actually built. This was very confusing behaviour. The
reason for this is that the value of the `LLVM_TOOL_<PROJECT>_BUILD`
variables are already set.

The problem here is that we have two sources of truth:

* The projects listed in LLVM_ENABLE_PROJECTS.
* The projects enabled/disabled with LLVM_TOOL_<PROJECT>_BUILD.

At configure time we have no real way of knowing which source of truth
the user wants so we apply the following heuristic:

If the user ever sets `LLVM_ENABLE_PROJECTS` in the CMakeCache then that
is used as the single source of truth and we force the
`LLVM_TOOL_<PROJECT>_BUILD` CMake cache variables to have the
appropriate values that match the contents of the
`LLVM_ENABLE_PROJECTS`. If the user never sets `LLVM_ENABLE_PROJECTS`
then they can continue to use and set the `LLVM_TOOL_<PROJECT>_BUILD`
variables as the "source of truth".

The problem with this approach is that if the user ever tries to use
both `LLVM_ENABLE_PROJECTS` and `LLVM_TOOL_<PROJECT>_BUILD` for the same
build directory then any user set value for `LLVM_TOOL_<PROJECT>_BUILD`
variables will get overwriten, likely without the user noticing.

Hopefully the above shouldn't matter in practice because the
LLVM_TOOL_<PROJECT>_BUILD variables are not documented, but
LLVM_ENABLE_PROJECTS is.

We should probably deprecate the `LLVM_TOOL_<PROJECT>_BUILD`
variables at some point by turning them into to regular CMake
variables that don't live in the CMake cache.

Differential Revision: https://reviews.llvm.org/D57535

llvm-svn: 353148
2019-02-05 08:47:28 +00:00
JF Bastien 115b64b3d1 Revert "Bump minimum toolchain version"
Reverting D57264 again, it looks like we're down to two bots that need fixing:

polly-amd64-linux
polly-arm-linux

They both have old versions of libstdc++ and recent clang.

llvm-svn: 352954
2019-02-02 06:01:12 +00:00
JF Bastien c9a69acc7e Bump minimum toolchain version
Summary:
The RFC on moving past C++11 got good traction:
  http://lists.llvm.org/pipermail/llvm-dev/2019-January/129452.html

This patch therefore bumps the toolchain versions according to our policy:
  llvm.org/docs/DeveloperPolicy.html#toolchain

Subscribers: mgorny, jkorous, dexonsmith, llvm-commits, mehdi_amini, jyknight, rsmith, chandlerc, smeenai, hans, reames, lattner, lhames, erichkeane

Differential Revision: https://reviews.llvm.org/D57264

llvm-svn: 352951
2019-02-02 05:15:34 +00:00
JF Bastien c6931ddc3d Revert "Bump minimum toolchain version"
Looks like we still have a few bots that are sad. Let try to get them fixed!

llvm-svn: 352835
2019-02-01 04:44:39 +00:00
JF Bastien 77074f9f77 Bump minimum toolchain version
Summary:
The RFC on moving past C++11 got good traction:
  http://lists.llvm.org/pipermail/llvm-dev/2019-January/129452.html

This patch therefore bumps the toolchain versions according to our policy:
  llvm.org/docs/DeveloperPolicy.html#toolchain

Subscribers: mgorny, jkorous, dexonsmith, llvm-commits, mehdi_amini, jyknight, rsmith, chandlerc, smeenai, hans, reames, lattner, lhames, erichkeane

Differential Revision: https://reviews.llvm.org/D57264

llvm-svn: 352834
2019-02-01 04:33:21 +00:00
JF Bastien e2dedd5564 Revert "Bump minimum toolchain version"
A handful of bots are still breaking, either because I missed them in my audit,
they were offline, or something else. I'm contacting their authors, but I'll
revert for now and re-commit later.

llvm-svn: 352814
2019-01-31 23:29:39 +00:00
JF Bastien 62bb58a357 Bump minimum toolchain version
Summary:
The RFC on moving past C++11 got good traction:
  http://lists.llvm.org/pipermail/llvm-dev/2019-January/129452.html

This patch therefore bumps the toolchain versions according to our policy:
  llvm.org/docs/DeveloperPolicy.html#toolchain

Subscribers: mgorny, jkorous, dexonsmith, llvm-commits, mehdi_amini, jyknight, rsmith, chandlerc, smeenai, hans, reames, lattner, lhames, erichkeane

Differential Revision: https://reviews.llvm.org/D57264

llvm-svn: 352811
2019-01-31 23:13:10 +00:00
Petr Hosek 12062e0667 Revert "[CMake] Unify scripts for generating VCS headers"
This reverts commits r352729 and r352731: this broke Sanitizer Windows bots

llvm-svn: 352733
2019-01-31 07:12:43 +00:00
Petr Hosek 0e712a766e [CMake] Unify scripts for generating VCS headers
Previously, there were two different scripts for generating VCS headers:
one used by LLVM and one used by Clang. They were both similar, but
different. They were both broken in their own ways, for example the one
used by Clang didn't properly handle monorepo resulting in an incorrect
version information reported by Clang.

This change unifies two the scripts by introducing a new script that's
used from both LLVM and Clang, ensures that the new script supports both
monorepo and standalone SVN and Git setups, and removes the old scripts.

Differential Revision: https://reviews.llvm.org/D57063

llvm-svn: 352729
2019-01-31 06:21:01 +00:00
Hans Wennborg 81675c8f3b Revert r351833 and r352250.
They were breaking the Windows build when using MSBuild, see the
discussion on D56781.

r351833: "Use response file when generating LLVM-C.dll"

> Use response file when generating LLVM-C.dll
>
> As discovered in D56774 the command line gets to long, so use a response file to give the script the libs. This change has been tested and is confirmed working for me.
>
> Commited on behalf of Jakob Bornecrantz
>
> Differential Revision: https://reviews.llvm.org/D56781

r352250: "Build LLVM-C.dll by default on windows and enable in release package"

>  Build LLVM-C.dll by default on windows and enable in release package
>
>  With the fixes to the building of LLVM-C.dll in D56781 this should now
>  be safe to land. This will greatly simplify dealing with LLVM for people
>  that just want to use the C API on windows. This is a follow up from
>  D35077.
>
>  Patch by Jakob Bornecrantz!
>
>  Differential revision: https://reviews.llvm.org/D56774

llvm-svn: 352492
2019-01-29 13:43:22 +00:00
Hans Wennborg 4c85e72ad3 Build LLVM-C.dll by default on windows and enable in release package
With the fixes to the building of LLVM-C.dll in D56781 this should now
be safe to land. This will greatly simplify dealing with LLVM for people
that just want to use the C API on windows. This is a follow up from
D35077.

Patch by Jakob Bornecrantz!

Differential revision: https://reviews.llvm.org/D56774

llvm-svn: 352250
2019-01-25 22:45:17 +00:00
Hans Wennborg 9feeaa933e Revert r351324 "Build LLVM-C.dll by default on windows and enable in release package"
This broke the build, ending up with too long command-lines when invoking gen-mscv-exports.py.

> As it says in the subject, should have gone long enough now that this
> should be safe. This will greatly simplify dealing with LLVM for people
> that just want to use the C API on windows. This is a follow up from
> D35077.
>
> Patch by Jakob Bornecrantz!
>
> Differential revision: https://reviews.llvm.org/D56774

llvm-svn: 351329
2019-01-16 12:36:28 +00:00
Hans Wennborg 49895adb90 Build LLVM-C.dll by default on windows and enable in release package
As it says in the subject, should have gone long enough now that this
should be safe. This will greatly simplify dealing with LLVM for people
that just want to use the C API on windows. This is a follow up from
D35077.

Patch by Jakob Bornecrantz!

Differential revision: https://reviews.llvm.org/D56774

llvm-svn: 351324
2019-01-16 11:47:56 +00:00
Hans Wennborg 1fe469ae6c Bump the trunk version to 9.0.0svn
llvm-svn: 351320
2019-01-16 10:57:02 +00:00
Louis Dionne 3d8b7a3ea3 [CMake] Add libunwind when 'all' is being passed as LLVM_ENABLE_PROJECTS
Reviewers: zturner

Subscribers: mgorny, jkorous, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D55942

llvm-svn: 349792
2018-12-20 18:39:47 +00:00
Alexandre Ganea 2bb4a4901b Revert r349517 "[CMake] Default options for faster executables on MSVC"
llvm-svn: 349656
2018-12-19 18:01:42 +00:00
Alexandre Ganea b505319969 [CMake] Default options for faster executables on MSVC
- Disable incremental linking by default. /INCREMENTAL adds extra thunks in the EXE, which makes execution slower.
- Set /MT (static CRT lib) by default instead of CMake's default /MD (dll CRT lib). The previous default /MD makes all DLL functions to be thunked, thus making execution slower (memcmp, memset, etc.)
- Adds LLVM_ENABLE_INCREMENTAL_LINK which is set to OFF by default.

Differential revision: https://reviews.llvm.org/D55056

llvm-svn: 349517
2018-12-18 18:17:00 +00:00
Eric Fiselier 1091bece23 [LLVM] Allow modulemap installation
Summary:
Currently we can't install the modulemaps provided by LLVM, since they are not structured to support headers generated as part of the build (ex. `llvm/IR/Attributes.gen`).
This patch restructures the module maps in order to support installation.

Modules containing generated headers are defined in the new `module.extern.modulemap` file, and are referenced from the main `module.modulemap` using `extern module`. There are two versions of the `module.extern.modulemap` file; one used when building and another, `module.install.modulemap`, which is re-named during installation.

Users can opt-into module map installation using `-DLLVM_INSTALL_MODULEMAPS=ON`.  The default value is `OFF` due to llvm.org/PR31905.

Reviewers: rsmith, mehdi_amini, bruno, EricWF

Reviewed By: EricWF

Subscribers: tschuett, chapuni, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D53510

llvm-svn: 347420
2018-11-21 20:46:50 +00:00
Stefan Granitz 534618d78e [CMake] Accept ENTITLEMENTS in add_llvm_executable and llvm_codesign
Summary: Allow code-signing with entitlements. FORCE may be used to avoid an error when replacing existing signatures.

Reviewers: beanz, bogner

Reviewed By: beanz

Subscribers: mgorny, llvm-commits, lldb-commits

Differential Revision: https://reviews.llvm.org/D54443

llvm-svn: 347068
2018-11-16 18:10:36 +00:00
Nathan Lanza 86923b02d9 Revert "Reorder FindPythonInterp so that config-ix can use PYTHON_EXECUTABLE"
This reverts commit rL346367 due to test error in compiler-rt.

llvm-svn: 346383
2018-11-08 01:10:24 +00:00
Shoaib Meenai 7681abdef2 [cmake] Set CMP0075 to NEW
Make the check_include_file* macros honor CMAKE_REQUIRED_LIBRARIES. This
shouldn't cause any of the configuration checks to give different
results (and I did clean configures before and after this change and
confirmed that the resulting CMake caches were identical, though of
course that's just one machine). This suppresses a warning when building
with CMake 3.12 or later.

This doesn't suppress the warning in clang, because clang does its own
cmake_minimum_required call even when being built in-tree, and that
resets all policy settings. I'll address that separately.

Differential Revision: https://reviews.llvm.org/D54236

llvm-svn: 346377
2018-11-08 00:18:12 +00:00
Nathan Lanza 9a9372fd0d Reorder FindPythonInterp so that config-ix can use PYTHON_EXECUTABLE
Summary:
Code in config-ix tries to call `PYTHON_EXECUTABLE` to search for some
python modules but that variable isn't set until the moved chunk of
code that finds Python is called.

Reorder it so CMake can use PYTHON_EXECUTABLE

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D52763

llvm-svn: 346367
2018-11-07 23:22:09 +00:00