Commit Graph

4288 Commits

Author SHA1 Message Date
Brad King bdca68388b ExternalProject: Always run update step with non-empty UPDATE_COMMAND
The purpose of the `update` step is to run an update on each build
(subject to `UPDATE_DISCONNECTED`).  This is done for version-controlled
source directories.  We should do it for a custom `UPDATE_COMMAND` too.
In particular, when `UPDATE_DISCONNECTED` is used we expect the
`skip-update` step to exist.
2016-05-18 14:54:25 -04:00
Brad King 4f17baccad Merge topic 'file-glob-sort'
edcccde7 file: Sort GLOB results to make it deterministic (#14491)
2016-05-18 09:30:59 -04:00
Geoff Viola d7233a0472 GHS: Use shorter object file names on collision 2016-05-18 09:27:19 -04:00
Brad King eb07669245 Tests: Select RunCMake.Ninja test cases based on ninja version
Some test cases need features not available in Ninja < 1.6, so check the
version before running them.
2016-05-18 09:24:54 -04:00
Reiner Herrmann edcccde7d6 file: Sort GLOB results to make it deterministic (#14491)
Even though the `file(GLOB)` documentation specifically warns against
using it to collect a list of source files, projects often do it anyway.
Since it uses `readdir()`, the list of files will be unsorted.
This list is often passed directly to add_executable / add_library.
Linking binaries with an unsorted list will make it unreproducible,
which means that the produced binary will differ depending on the
unpredictable `readdir()` order.

To solve those reproducibility issues in a lot of programs (which don't
explicitly `list(SORT)` the list manually), sort the resulting list of
the `file(GLOB)` command.

A more detailed rationale about reproducible builds is available
[here](https://reproducible-builds.org/).
2016-05-17 10:12:11 -04:00
Nicolas Despres 8a862a4d4b Ninja: Support embedding of CMake as subninja project
Add a `CMAKE_NINJA_OUTPUT_PATH_PREFIX` variable.  When it is set, CMake
generates a `build.ninja` file suitable for embedding into another ninja
project potentially generated by an alien generator.
2016-05-17 09:34:12 -04:00
Kitware Robot d9fd2f5402 Revise C++ coding style using clang-format
Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.
2016-05-16 16:05:19 -04:00
Brad King 856804f9a9 Merge topic 'findpkgconfig-target'
df97b979 FindPkgConfig: optionally create imported target for the found libraries
2016-05-16 10:11:38 -04:00
Brad King d3db070e9e Merge topic 'cpack-rpm-adding-dist-to-release-tag'
f5089cfc CPack/RPM adding dist to release tag test
f7003a60 CPack/RPM release dist tag support
2016-05-16 10:11:35 -04:00
Brad King bc7598fde0 Merge topic 'cpack-rpm-different-package-names'
44ee2d71 CPack/RPM different package names
2016-05-16 10:11:32 -04:00
Brad King 2b25174da6 Merge topic 'cpack-deb-improvements'
4461e8bb CPack/Deb cpack-deb-improvements release notes
7e940bf7 CPack/Deb test changes due to breaking changes
3b648894 CPack/Deb package release number in file name
316dd613 CPack/Deb proper package file naming
271e03f0 CPack/Deb per-component package architecture
23baaf8d CPack/Deb inter package dependencies
3a55a0e7 CPack/Deb proper component packages file naming
c7f388e7 CPack/Deb generation of postinst and postrm ldconfig files
2d589653 CPack/Deb generation of DEBIAN/shlibs control file
2016-05-16 10:11:30 -04:00
Domen Vrankar 44ee2d717a CPack/RPM different package names
Packagers may now set their own rpm package
file names or request that rpmbuild tool
chooses one for them. It also supports handing
of situations where one spec file may produce
multiple rpm packages.
2016-05-15 03:01:34 +02:00
Domen Vrankar f5089cfccd CPack/RPM adding dist to release tag test
Tests and release notes
2016-05-14 20:21:32 +02:00
Rolf Eike Beer df97b9793f FindPkgConfig: optionally create imported target for the found libraries 2016-05-14 09:31:41 +02:00
Domen Vrankar 7e940bf74a CPack/Deb test changes due to breaking changes
New CPack/Deb tests and changes to old tests
as package file names and inter component dependency
detection was changed.
2016-05-13 10:46:05 -04:00
Brad King 6b0b066074 InstallRequiredSystemLibraries: Optionally install Windows UCRT (#16073) 2016-05-12 11:10:23 -04:00
Brad King 062593273f Tests: Wrap long comment lines in VSXaml test
Manually wrap the lines and remove literal tab characters.  This avoids
problems with incremental formatting by clang-format.
2016-05-11 15:16:04 -04:00
Brad King 18df6a9a78 Tests: Protect unicode literals from clang-format Cpp03 formatting
Since CMake is written in C++98 any clang-format configuration must
set `Standard` to `Cpp03` so that `A<A<int> >` is not rewritten as
`A<A<int>>`.  However, this will cause `U"foo"` to be rewritten as
`U "foo"`.  Add markup to turn clang-format off in the one place
that the latter case occurs so that we do not need a separate
`.clang-format` config file for it.

Inspired-by: Daniel Pfeifer <daniel@pfeifer-mail.de>
2016-05-11 10:37:45 -04:00
Brad King b30b32a493 Drop find_(library|file|path) prefixes from PATH on non-Windows
Since commit v3.3.0-rc1~430^2 (Teach find_(library|file|path) to get
prefixes from PATH, 2015-02-18) we search in <prefix>/include and
<prefix>/lib directories for prefixes with bin directories in the PATH
environment variable.  The motivation was to support MSYS, MinGW and
similar Windows platforms in their default environments automatically.
At the time this behavior was thought to be worthwhile in general.

Suggested-by: Chuck Atkins <chuck.atkins@kitware.com>
2016-05-09 12:58:08 -04:00
Brad King 0ac18d40c8 Remove `//------...` horizontal separator comments
Modern editors provide plenty of ways to visually separate functions.
Drop the explicit comments that previously served this purpose.
Use the following command to automate the change:

    $ git ls-files -z -- \
        "*.c" "*.cc" "*.cpp" "*.cxx" "*.h" "*.hh" "*.hpp" "*.hxx" |
      egrep -z -v "^Source/cmCommandArgumentLexer\." |
      egrep -z -v "^Source/cmCommandArgumentParser(\.y|\.cxx|Tokens\.h)" |
      egrep -z -v "^Source/cmDependsJavaLexer\." |
      egrep -z -v "^Source/cmDependsJavaParser(\.y|\.cxx|Tokens\.h)" |
      egrep -z -v "^Source/cmExprLexer\." |
      egrep -z -v "^Source/cmExprParser(\.y|\.cxx|Tokens\.h)" |
      egrep -z -v "^Source/cmFortranLexer\." |
      egrep -z -v "^Source/cmFortranParser(\.y|\.cxx|Tokens\.h)" |
      egrep -z -v "^Source/cmListFileLexer\." |
      egrep -z -v "^Source/cm_sha2" |
      egrep -z -v "^Source/(kwsys|CursesDialog/form)/" |
      egrep -z -v "^Utilities/(KW|cm).*/" |
      xargs -0 sed -i '/^\(\/\/---*\|\/\*---*\*\/\)$/ {d;}'

This avoids modifying third-party sources and generated sources.
2016-05-09 09:41:43 -04:00
Brad King d95fbdb709 Merge topic 'custom-command-CROSSCOMPILING_EMULATOR'
8c2cedc6 CustomCommandGenerator: Add support for CROSSCOMPILING_EMULATOR
2016-05-09 09:01:10 -04:00
Jean-Christophe Fillion-Robin 8c2cedc624 CustomCommandGenerator: Add support for CROSSCOMPILING_EMULATOR
Teach the `add_custom_command` and `add_custom_target' commands to
substitute argv0 with the crosscompiling emulator if it is a target with
the `CROSSCOMPILING_EMULATOR` property set.
2016-05-09 08:56:27 -04:00
Brad King afca373510 Help clang-format wrap after braces on long initializer lists
Add a long comment inside a few braced initializer lists in order to
convince clang-format to break after the opening brace and format the
list without indenting every value past the opening brace.
2016-05-06 15:54:32 -04:00
Jean-Christophe Fillion-Robin eccfc0d185 Tests: Improve source file name in RunCMake.CrosscompilingEmulator
The test executable returns with an error, so indicate this in the
source name.
2016-05-03 10:42:21 -04:00
Jean-Christophe Fillion-Robin 8de778118b Tests: Cover genex behavior in CROSSCOMPILING_EMULATOR test case
A `$<TARGET_FILE:tgt>` generator expression does not cause insertion of
the emulator.  Add a test covering this.  While at it, extend the test
case to cover executables in a subdirectory.  Also make the test
matching expressions more robust to support multiple add_test calls
without mixing them while matching.
2016-05-03 10:41:52 -04:00
Brad King 3fc49c50b0 Merge topic 'doc-cmake-policies-manual-improvements'
5f948d2a Help: Add policy summaries to cmake-policies(7)
b74d73e5 Help: Organize cmake-policies(7) manual by version of introduction
de370656 cmRST: Parse toctree lines with Sphinx cross-reference syntax
845cb217 CMP0059: Fix typo in policy description
2016-05-03 10:17:00 -04:00
Brad King a0d31f3bb3 Merge topic 'clang-format-include-order'
54f71cd7 Source: Sort includes the way clang-format would
7b6ffa59 Source: Sort includes of sys/types.h as clang-format would
be14fe48 Source: Stabilize include order of sys/types.h before sys/stat.h
5e871f70 Tests: Sort includes of sys/types.h as clang-format would
a20d7d48 Tests: Fix Plugin test include order
2016-05-03 10:16:55 -04:00
Brad King 5e871f7089 Tests: Sort includes of sys/types.h as clang-format would 2016-05-03 10:08:41 -04:00
Brad King a20d7d4821 Tests: Fix Plugin test include order
Fix the order accidentally broken by commit e1c77472 (Format include
directive blocks and ordering with clang-format, 2016-04-29).  Include
the KWSys header first in its own block so that it is not moved by tools
that re-order includes.  It must be included first to define large file
support macros consistently.
2016-05-03 10:08:41 -04:00
Brad King 845cb217a7 CMP0059: Fix typo in policy description 2016-05-02 15:16:07 -04:00
Brad King 24b2a36778 Merge topic 'test-watcom-workaround'
47c29885 Tests: Fix RunCMake.BuildDepends filesystem delay for Watcom WMake
26790ad9 Tests: Add workaround to Wrapping test for Watcom failure
2016-05-02 09:24:23 -04:00
Brad King 067b21b675 Merge topic 'clang-format-include-order'
e1c77472 Format include directive blocks and ordering with clang-format
180538c7 Source: Stabilize include order
0e7bca92 Utilities/Release: Stabilize include order in WiX custom action
eb817be0 Tests: Stabilize include order in MFC, VSXaml, and VSWinStorePhone
eda313b4 Tests: Stabilize include order in StringFileTest
7110b754 CursesDialog: add missing cmState include
d7a5f255 Modules: Remove unused CMakeTestWatcomVersion.c file
2016-05-02 09:24:21 -04:00
Brad King e1c7747253 Format include directive blocks and ordering with clang-format
Sort include directives within each block (separated by a blank line) in
lexicographic order (except to prioritize `sys/types.h` first).  First
run `clang-format` with the config file:

    ---
    SortIncludes: false
    ...

Commit the result temporarily.  Then run `clang-format` again with:

    ---
    SortIncludes: true
    IncludeCategories:
      - Regex:    'sys/types.h'
        Priority: -1
    ...

Commit the result temporarily.  Start a new branch and cherry-pick the
second commit.  Manually resolve conflicts to preserve indentation of
re-ordered includes.  This cleans up the include ordering without
changing any other style.

Use the following command to run `clang-format`:

    $ git ls-files -z -- \
        '*.c' '*.cc' '*.cpp' '*.cxx' '*.h' '*.hh' '*.hpp' '*.hxx' |
      egrep -z -v '(Lexer|Parser|ParserHelper)\.' |
      egrep -z -v '^Source/cm_sha2' |
      egrep -z -v '^Source/(kwsys|CursesDialog/form)/' |
      egrep -z -v '^Utilities/(KW|cm).*/' |
      egrep -z -v '^Tests/Module/GenerateExportHeader' |
      egrep -z -v '^Tests/RunCMake/CommandLine/cmake_depends/test_UTF-16LE.h' |
      xargs -0 clang-format -i

This selects source files that do not come from a third-party.

Inspired-by: Daniel Pfeifer <daniel@pfeifer-mail.de>
2016-04-29 13:58:54 -04:00
Brad King 47c298851b Tests: Fix RunCMake.BuildDepends filesystem delay for Watcom WMake
Our 1.125s delay does not seem to be long enough to be reliable with
the Watcom `wmake` tool.  Use a longer delay for Watcom.
2016-04-29 11:47:35 -04:00
Brad King eb817be034 Tests: Stabilize include order in MFC, VSXaml, and VSWinStorePhone
These tests use a precompiled header that must be included first.
Include the header in an isolated block so that tools that sort
includes do not move it.
2016-04-29 10:56:59 -04:00
Daniel Pfeifer eda313b485 Tests: Stabilize include order in StringFileTest
This test generates a header file which is not self-contained.
Include it in a separate block of includes so that tools that
sort includes do not move it.
2016-04-29 10:56:58 -04:00
Brad King 26790ad93b Tests: Add workaround to Wrapping test for Watcom failure
The Watcom tools do not seem to like our wrapFLTK executable
to mix C and C++ sources.  Work around this by using C++ for
both sources.
2016-04-28 10:20:40 -04:00
Brad King ce82e0a53f Deprecate Visual Studio 7 .NET 2003 generator
Update documentation to mark the generator deprecated.  Add a warning at
the end of generation plus an option to turn off the warning.
2016-04-28 10:09:20 -04:00
Brad King 6a501b6519 Tests: Drop test for VS 7.0 generator deprecation warnings
We removed this generator but forgot to remove this now-unused test
case.
2016-04-28 10:04:09 -04:00
Brad King 5b4f771fd7 Merge topic 'intel-compiler-features'
21b1fa5c Help: Add notes for topic 'intel-compiler-features'
9addce99 Features: Record standard flags for Intel C/C++ on Windows
15a6c950 WCDH: Add Intel to list of supported compilers
36f32ede Features: Record standards and features for Intel C on UNIX
d028b948 Features: Specify minimum version Intel C++ 12.1
be910f00 Features: Record standards and features for Intel C++ on UNIX
7f401ae4 Features: Detect C default dialect on MSVC-like compilers
2016-04-28 09:26:09 -04:00
Brad King 954c06803d Merge topic 'ExternalProject-git-clone-shallow'
7db9f3f2 ExternalProject: Add option to perform a shallow Git clone (#15291)
2016-04-28 09:26:07 -04:00
Robert Maynard 15a6c9502d WCDH: Add Intel to list of supported compilers 2016-04-28 09:16:36 -04:00
Robert Maynard 36f32ede8d Features: Record standards and features for Intel C on UNIX
Record features for Intel C 12.1 and above.  Skip this for now on
Windows (where Intel C simulates MSVC).
2016-04-28 09:16:35 -04:00
Levi Morrison be910f00b5 Features: Record standards and features for Intel C++ on UNIX
Skip this for now on Windows (where Intel C++ simulates MSVC).
2016-04-28 09:15:25 -04:00
Brad King 7db9f3f294 ExternalProject: Add option to perform a shallow Git clone (#15291)
Inspired-by: Ilya Kulakov <kulakov.ilya@gmail.com>
2016-04-27 10:58:07 -04:00
Geoff Viola 1703a6d2c4 GHS: Fix handling of duplicate source filenames (#16046)
Green Hills MULTI project files must specify explicitly distinct object
file names for source files with the same name.
2016-04-25 10:46:09 -04:00
Brad King 76e793b9ad Merge topic 'autogen-updates'
84946c73 Tests: QtAutogen: Same source name in different directories test
9c6fa684 Autogen: Generate qrc_NAME.cpp files in subdirectories
488ea8c7 Autogen: Generate not included moc files in subdirectories (#12873)
66caae45 Autogen: Check added for name collisions of generated qrc_NAME.cpp files
663d093d Autogen: Check added for name collisions of generated ui_NAME.h files
8295d437 Autogen: Check added for name collisions of generated moc files
d350308a Help: Improve AUTOMOC documentation layout
2016-04-22 09:02:03 -04:00
Sebastian Holtermann 84946c735c Tests: QtAutogen: Same source name in different directories test
The test features multiple .cpp and .qrc files with the same name
in different subdirectories. This requires AUTOMOC and AUTORCC to
generate files with names that respect the path information of
the source files.
2016-04-22 08:55:44 -04:00
Roger Leigh 2c1b720e64 FindBoost: Define Boost::boost for all boost versions 2016-04-19 22:07:45 +01:00
Brad King 7c36d2067b cmListFileBacktrace: Refactor storage to provide efficient value semantics
Since commit v3.4.0-rc1~321^2~2 (Genex: Store a backtrace, not a pointer
to one, 2015-07-08) we treat cmListFileBacktrace instances as
lightweight values.  This was true at the time only because the
backtrace information was kept in the cmState snapshot hierarchy.
However, that forced us to accumulate a lot of otherwise short-lived
snapshots just to have the backtrace fields available for reference by
cmListFileBacktrace instances.  Recent refactoring made backtrace
instances independent of the snapshot hierarchy to avoid accumulating
short-lived snapshots.  This came at the cost of making backtrace values
heavy again, leading to lots of string coying and slower execution.

Fix this by refactoring cmListFileBacktrace to provide value semantics
with efficient shared storage underneath.  Teach cmMakefile to maintain
its call stack using an instance of cmListFileBacktrace.  This approach
allows the current backtrace to be efficiently saved whenever it is
needed.

Also teach cmListFileBacktrace the notion of a file-level scope.  This
is useful for messages about the whole file (e.g. during parsing) that
are not specific to any line within it.  Push the CMakeLists.txt scope
for each directory and never pop it.  This ensures that we always have
some context information and simplifies cmMakefile::IssueMessage.
Push/pop a file-level scope as each included file is processed.  This
supersedes cmParseFileScope and improves diagnostic message context
information in a few places.  Fix the corresponding test cases to expect
the improved output.
2016-04-18 09:21:19 -04:00
Brad King eae4cee0b5 Merge topic 'try_compile-config-flags'
bd581a37 try_compile: Honor CMAKE_<LANG>_FLAGS_<CONFIG> changes (#16054)
82ef90fc cmCoreTryCompile: Factor out config lookup for re-use
2016-04-13 09:58:18 -04:00
Daniel Pfeifer 5e62444cff Add options to run clang-tidy with the compiler
Create a <LANG>_CLANG_TIDY target property (initialized by a
CMAKE_<LANG>_CLANG_TIDY variable) to specify a clang-tidy command line
to be run along with the compiler.
2016-04-13 09:56:10 -04:00
Brad King bd581a3733 try_compile: Honor CMAKE_<LANG>_FLAGS_<CONFIG> changes (#16054)
In the `try_compile` source file signature we propagate the caller's
value of `CMAKE_<LANG>_FLAGS` into the test project.  Extend this to
propagate `CMAKE_<LANG>_FLAGS_<CONFIG>` too instead of always using the
default value in the test project.  This will be useful, for example, to
allow the MSVC runtime library to be changed (e.g. `-MDd` => `-MTd`).
2016-04-11 11:25:08 -04:00
Brad King 9ac11bc25d Merge topic 'test-RunCMake.BuildDepends-filesystem-workaround'
f5e79004 Tests: Work around filesystem timestamp bugs in RunCMake.BuildDepends
2016-04-11 09:39:00 -04:00
Brad King f5e79004e2 Tests: Work around filesystem timestamp bugs in RunCMake.BuildDepends
The Custom-Symbolic-and-Byproduct case fails strangely on some
filesystems used by our nightly testing.  Somehow on the first build the
`use-byproduct` output ends up with a timestamp older than
`gen-byproduct-stamp` even though the build log clearly shows them build
in the correct order (and must according to build system dependencies).
Work around this problem by adding an extra delay before building
`use-byproduct`.

Tested-by: Gerhard Grimm <gerhard.grimm@detec.com>
2016-04-08 10:51:01 -04:00
Brad King f6c5958047 Merge topic 'ninja-restat-custom-command-byproducts'
add7abc8 Ninja: Restat custom command byproducts even with a SYMBOLIC output (#16049)
ff805113 Ninja: Fix detection of custom command symbolic outputs
2016-04-08 09:03:59 -04:00
Brad King 7d5a0f5f60 Merge topic 'branch_coverage_glob'
8ea1b0df CTestCoverageCollectGCOV: Improve documentation
425d7646 CTestCoverageCollectGCOV: Honor CTEST_EXTRA_COVERAGE_GLOB
2016-04-07 08:57:41 -04:00
Zack Galbreath 425d764685 CTestCoverageCollectGCOV: Honor CTEST_EXTRA_COVERAGE_GLOB
Teach CTestCoverageCollectGCOV to honor the
CTEST_EXTRA_COVERAGE_GLOB variable.  When this variable is set,
this module will glob for matching source files that were not
covered and include them in the resulting tar file.
2016-04-07 08:53:30 -04:00
Brad King add7abc835 Ninja: Restat custom command byproducts even with a SYMBOLIC output (#16049)
The change in commit v3.5.0-rc1~198^2 (Ninja: Always re-run custom
commands that have symbolic dependencies, 2015-11-19) broke the
byproducts feature added by commit v3.2.0-rc1~340^2~2 (Add an option for
explicit BYPRODUCTS of custom commands, 2014-11-13) when SYMBOLIC
outputs also appear.  This case occurs with AUTORCC-generated custom
targets because the output is SYMBOLIC (to always run) and the generated
file is a byproduct (for restat so dependents do not run unnecessarily).

The two use cases conflict because Ninja does not support per-output
restat.  Favor restat whenever byproducts are present because it is
required for byproducts to work correctly.  In use cases where we want
an always-run chain we simply will not be able to also use byproducts.
2016-04-05 16:20:28 -04:00
Brad King adea45e15a Merge topic 'fix-target-alias-in-subdir'
0e44f489 Rename local target lookup methods to clarify purpose
bc30f8b5 Fix lookup of an ALIAS target outside aliased target's directory (#16044)
2016-04-05 09:37:59 -04:00
Brad King bc30f8b5e6 Fix lookup of an ALIAS target outside aliased target's directory (#16044)
Refactoring in commit v3.5.0-rc1~272^2~11 (cmTarget: Implement ALIAS in
terms of name mapping, 2015-10-25) accidentally introduced logic that
assumes ALIAS targets always reference targets in their own directory.
Fix this and add a test case.

The configure-step fix is that `cmMakefile::FindTarget` should not consider
aliases.  The purpose of this method is just to look up targets local to
a directory.  Since ALIAS and normal targets share a namespace we know a
locally defined target will never collide with an ALIAS target anyway.
The method has 3 call sites, and this change is safe for all of them:

* `cmInstallCommand::HandleTargetsMode`: Rejects aliases before the call.
* `cmFLTKWrapUICommand::FinalPass`: Should never have considered aliases.
* `cmMakefile::FindTargetToUse`: Falls back to a global lookup anyway.

The generate-step fix is that `cmLocalGenerator::FindGeneratorTarget`
should not consider aliases.  This method is the generate-step
equivalent to the above.  The method has 2 call sites, and this change
is safe for both of them:

* `cmInstallTargetGenerator::Compute`: Never uses an alias target name.
* `cmLocalGenerator::FindGeneratorTargetToUse`: Falls back to global lookup.

Reported-by: Matteo Settenvini <matteo@member.fsf.org>
2016-04-01 15:44:16 -04:00
Brad King e0cc8bf5d7 Merge topic 'cpack-rpm-external-symlink-handling'
eae4eef0 CPack/RPM external symlink handling
2016-04-01 10:04:32 -04:00
Domen Vrankar eae4eef0c4 CPack/RPM external symlink handling
Symbolic links that point to external
location no longer cause cmake to fail
with string out of bounds error but
are instead packaged as non relocatable
symlinks and print out a warning message.
2016-04-01 09:52:04 -04:00
Jean-Christophe Fillion-Robin fad5d59cf4 PushCheckStateTest: Update test to check CMAKE_EXTRA_INCLUDE_FILES 2016-03-31 11:11:32 -04:00
Jean-Christophe Fillion-Robin a3468b78f2 PushCheckStateTest: Test all variables managed by the module 2016-03-31 10:58:33 -04:00
Jean-Christophe Fillion-Robin 85b2bb6cb4 PushCheckStateTest: Fix syntax warning
This commit fixes the following warning originally introduced in
1325260 (Add macros cmake_push/pop_check_state() as discussed on the list.)

  Argument not separated from preceding token by whitespace.
2016-03-31 10:40:23 -04:00
Felix Geyer 49e82c15d5 Fix spelling typos in comments and documentation (#16037)
The Debian package checker tool (lintian) detected several typos in
CMake.
2016-03-29 14:31:02 -04:00
Domen Vrankar 1fe004eac3 cpack rpm setting of defattr
RPM supports setting of default user, group,
file and directory permissions that will be
applied for files in package unless specified
per file/dir with attr setting
This is related to bug report 14714
2016-03-29 00:51:18 +02:00
Brad King c41b9dc7b5 Tests: Fix GTK2Components.gtkmm test with sigc++ >= 2.5.1
FindGTK2 adds compile features to GTK2::sigc++ so that clients will
compile as C++11 or above.  However, our test case covers using just the
library list variables instead of the imported targets.  Fix this case
by propagating the compile features manually.
2016-03-25 09:19:33 -04:00
Brad King 917d49ed93 Merge topic 'cmake-depend-in-project-only'
b06e17da Help: Add notes for topic 'cmake-depend-in-project-only'
52540245 Tests: Add test for CMAKE_DEPENDS_IN_PROJECT_ONLY variable
b1e1aa1e Makefile: Optionally scan only source and build trees for dependencies
2016-03-24 08:49:43 -04:00
Brad King 5b2acf6c1c Merge topic 'vs-startup-project'
ad140c6e VS: Put ALL_BUILD in the PREDEFINED_TARGETS_FOLDER
f069be05 VS: Fix default target support for targets nested inside a folder
c05ea485 VS: Improve unit test macros
78ec0461 VS: Add option to choose the `.sln` startup project (#15578)
2016-03-24 08:49:41 -04:00
Brad King 525402450a Tests: Add test for CMAKE_DEPENDS_IN_PROJECT_ONLY variable 2016-03-23 14:03:01 -04:00
Taylor Braun-Jones f069be0548 VS: Fix default target support for targets nested inside a folder
It's not actually the first target in a `.sln` file that is treated as
the default startup project, but rather the first fully defined target.
2016-03-23 13:22:15 -04:00
Brad King 6201c1a6ce Merge topic 'timeout_after_match'
de7afd29 Help: Add notes for topic 'timeout_after_match'
993e48d0 CTest: Optionally use a secondary test timeout after matching output
2016-03-22 16:09:28 -04:00
Brad King 208524b822 Merge topic 'test-rename-VSSolution'
5c1f4da8 Tests: Rename RunCMake.{SolutionGlobalSections => VSSolution}
2016-03-22 13:04:24 -04:00
Taylor Braun-Jones c05ea48545 VS: Improve unit test macros
Change `getFirstProject` macro to more flexible version
`getProjectNames`
2016-03-22 12:41:30 -04:00
Zack Galbreath 993e48d045 CTest: Optionally use a secondary test timeout after matching output
Allow a test N seconds to complete after we detect a matching line in
its output.  Activate this behavior with a new TIMEOUT_AFTER_MATCH test
property.
2016-03-22 11:17:55 -04:00
Brad King 2f9e6551c0 Merge topic 'ninja-directory-targets'
9ead71df Help: Add notes for topic 'ninja-directory-targets'
e9bf8ec8 Ninja: Add test for `$subdir/all` targets
ca575fe9 Ninja: Add `$subdir/all` targets
2016-03-22 11:15:38 -04:00
Brad King 86eb327cda Merge topic 'fix-repeat-pkg-config'
6f4f9054 FindPkgConfig: set correctly named variables in cache (#15903)
2016-03-22 11:15:33 -04:00
Brad King e9bf8ec849 Ninja: Add test for `$subdir/all` targets 2016-03-22 08:01:14 -04:00
Davy Durham 78ec046130 VS: Add option to choose the `.sln` startup project (#15578)
Add a `VS_STARTUP_PROJECT` directory property to specify the project
that should be placed first in the `.sln` file so that it will be
selected as the default startup project.

Co-Author: Taylor Braun-Jones <taylor.braunjones@avigilon.com>
2016-03-22 07:57:00 -04:00
Brad King 2c3b8a1cd8 Merge branch 'fix-repeat-pkg-config' into release 2016-03-21 09:08:25 -04:00
Ben Boeckel 6f4f905483 FindPkgConfig: set correctly named variables in cache (#15903)
The fix in commit v3.5.0-rc1~27^2 (FindPkgConfig: set standard variables
in the cache, 2016-01-20) added the wrong variable name to the cache.
The test was only testing that the cache variable existed, not that it
also had the correct value.  Update the test to ensure that the cache
value matches the local variable value.

Reported-by: Bernd Lörwald
2016-03-21 08:58:12 -04:00
Brad King 5c1f4da83d Tests: Rename RunCMake.{SolutionGlobalSections => VSSolution}
The test will be suitable for covering other `.sln` content too.
2016-03-18 13:20:42 -04:00
Brad King 9cdb37e917 Merge topic 'release-win64'
c089485d Utilities/Release: Skip spurious Qt5Autogen test for nightly binary
e903a9fc Utilities/Release: Create a Windows 64-bit binary
dd630075 Utilities/Release: Rename scripts to match target platform
2016-03-18 09:43:23 -04:00
Brad King 1bcdc4db1b Merge topic 'GenerateExportHeader-fix-name-leak'
6a6e5d89 GenerateExportHeader: Allow common NO_DEPRECATED_MACRO_NAME for multiple libs
be5a8973 GenerateExportHeader: Do not define DEFINE_NO_DEPRECATED (#16022)
2016-03-18 09:43:20 -04:00
Andreas Schuh be5a8973c3 GenerateExportHeader: Do not define DEFINE_NO_DEPRECATED (#16022)
Previously we allowed this definition to persist outside our header.
This would cause conflicts across multiple such headers because the name
was always the same.  Fix this by avoiding the definition altogether.
2016-03-17 10:40:24 -04:00
Brad King cd569b962d Merge topic 'ios-install-combined-one-arch'
e3fc2899 Fix iOS combined feature for single architecture targets
2016-03-17 09:41:37 -04:00
Brad King e903a9fc55 Utilities/Release: Create a Windows 64-bit binary
Compile with `-D_WIN32_WINNT=0x502` to use a WinXP-compatible API.
Compile with `-D_USING_V110_SDK71_` to tell the VS standard library
headers that we are building with a WinXP-compatible Windows SDK.  Link
executables with `-subsystem:console,5.02` to make them runnable on
Windows XP 64-bit.  Ideally `cmake-gui` should instead be linked with
`-subsystem:windows,5.02` but with the Ninja and Makefile generators
CMake adds `-subsystem:windows` after our `-subsystem:console,5.02` flag
and the linker seems to interpret this combination as we need.
2016-03-17 09:32:16 -04:00
Brad King dd63007544 Utilities/Release: Rename scripts to match target platform
The machine name we happen to use for the build is less informative than
its platform.
2016-03-17 09:30:30 -04:00
Ruslan Baratov e3fc2899c8 Fix iOS combined feature for single architecture targets
If list of valid target architectures is empty for given SDK then there will
be no VALID_ARCHS build setting returned by Xcode. Return "" (empty string)
explicitly in this case. This may happens if CMAKE_IOS_INSTALL_COMBINED is ON
but only one architecture used in target.
2016-03-15 10:09:50 -04:00
Brad King 9b9396b06a Merge topic 'FindProtobuf-variable-case'
a7b09e7f FindProtobuf: Rename variables to match case of module name
2016-03-11 08:30:46 -05:00
Brad King 1ed74b9d22 Merge topic 'remove-vs6-generator'
b42866a3 Drop Visual Studio 6 generator
cd9ba3ec cmLocalVisualStudio7Generator: Fix name of helper function
2016-03-10 09:16:23 -05:00
Brad King 612a8b3bd8 Merge topic 'vs-clang-cl'
491b41dd Help: Add notes for topic 'vs-clang-cl'
ad6d27ac Tests: do not build PrecompiledHeader on Clang/C2
a0f0541f Tests: fix PDBDirectoryAndName on Clang/C2
3541af67 Tests: fix Plugin building on Clang/C2
1902c293 Tests: fix complexOneConfig building on Clang/C2
cab2ec11 Tests: fix Complex building on Clang/C2
ada3736c Tests: fix Module.GenerateExportHeader building on Clang/C2
123b7e13 Tests: fix AliasTarget building on Clang/C2
445d4d4b VS 14: Add flag map for -std= to CppLanguageStandard tag in project files
0a785eb4 Features: Clang has no cxx_decltype_incomplete_return_type in MSVC sim mode
2c2ec488 VS: in Clang/C2 toolset, setup correct compiler settings
37afe00f CMakeDetermineCompilerId: Add detection of clang.exe bundled with VS
2016-03-10 09:16:16 -05:00
Mariusz Pluciński ad6d27ac2a Tests: do not build PrecompiledHeader on Clang/C2 2016-03-10 09:11:42 -05:00
Mariusz Pluciński a0f0541f35 Tests: fix PDBDirectoryAndName on Clang/C2 2016-03-10 09:11:42 -05:00
Mariusz Pluciński 3541af67b7 Tests: fix Plugin building on Clang/C2 2016-03-10 09:11:41 -05:00
Mariusz Pluciński 1902c293ba Tests: fix complexOneConfig building on Clang/C2 2016-03-10 09:11:41 -05:00
Mariusz Pluciński cab2ec111b Tests: fix Complex building on Clang/C2 2016-03-10 09:11:41 -05:00
Mariusz Pluciński ada3736c78 Tests: fix Module.GenerateExportHeader building on Clang/C2 2016-03-10 09:11:41 -05:00
Mariusz Pluciński 123b7e1335 Tests: fix AliasTarget building on Clang/C2 2016-03-10 09:11:41 -05:00
Gregor Jasny 111cd67919 Xcode: ReRunCMake even if files disappeared (#15992) 2016-03-09 20:33:01 +01:00
Brad King b42866a34a Drop Visual Studio 6 generator
This generator has been deprecated since CMake 3.3.  Remove it.
Update documentation, modules, and tests to drop content specific
to this generator.
2016-03-09 09:42:18 -05:00
Brad King d1856e2e33 Merge topic 'add-FindLTTngUST'
a4194deb Add FindLTTngUST module to find LTTng-UST library
2016-03-09 08:50:01 -05:00
Brad King 72e0dc58d3 Diagnose recursive project/enable_language without crashing (#15999)
Calling `project()` or `enable_language()` from a toolchain file will
infinitely recurse since those commands load the toolchain file.
Diagnose and reject this case with an error message instead of crashing
when the stack eventually overflows.
2016-03-07 13:52:38 -05:00
Antonio Perez Barrero a7b09e7f43 FindProtobuf: Rename variables to match case of module name
Use recommended case for variable names. i.e. matching name of the
module as passed to `find_package`.

For backwards compatibility, the upper case versions of both input and
output variables are used and defined when appropriate.  Skip this for
the _FOUND variable because FPHSA already does it.  Skip this for the
_VERSION variable because that was recently added and never available
with the old name in a release of CMake.
2016-03-07 12:56:25 -05:00
Philippe Proulx a4194debea Add FindLTTngUST module to find LTTng-UST library
Also detect the library version number.  Provide results as variables
and as an imported target, LTTng::UST.

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
2016-03-07 11:46:49 -05:00
Brad King cfb4d7736e Merge topic 'update-osx-release'
b682debd Utilities/Release: Switch to OS X 10.7 and Qt 5.5 for Mac binary
2016-03-07 10:02:42 -05:00
Fabian Otto 6122909c33 VS: Add option to set `ConfigurationType` of a .vcxproj file
Add a VS_CONFIGURATION_TYPE target property to set this value
explicitly.  This is useful to build a Windows Kernel Mode Driver,
for example.
2016-02-26 10:52:13 -05:00
Brad King 79d4b5bec9 Merge topic 'try_compile-target-type'
7f1bd9fe try_compile: Add option to control type of target
2016-02-26 10:31:28 -05:00
Brad King 6c9586f9c7 file(DOWNLOAD): Fill STATUS variable on hash mismatch (#15987)
Although we fail with an error on a hash mismatch, it is not a fatal
error so the script may continue processing.  If the download itself had
no error then report in the STATUS variable that the operation was not
successful due to the hash mismatch.

Suggested-by: Tobias Hieta <tobias@hieta.se>
2016-02-25 11:40:50 -05:00
Dimitar Yordanov 430251245e cmake_parse_arguments: Additional regression tests
Add regression tests for the arguments handling in
cmake_parse_arguments. The tests were run also against cmake 3.4.1
maint branch to verify that there are no regressions.

Signed-off-by: Dimitar Yordanov <dimitar.yordanov@sap.com>
Signed-off-by: Matthias Maennich <matthias.maennich@sap.com>
2016-02-24 10:07:30 -05:00
Brad King 8f8418c68b Merge topic 'test-XCTest-sdkroot'
d8cba536 Tests: Fix XCTest when ENV{SDKROOT} is set
2016-02-24 09:39:13 -05:00
Brad King 6f00fc58ed Merge topic 'test-FindPackageModeMakefileTest-optionally'
c05678ad Tests: Add option to disable FindPackageModeMakefileTest
2016-02-24 09:39:10 -05:00
Brad King be98577f13 Merge topic 'revert-automoc-src-per-dir'
091b649e Revert "Automoc: Fix support of files with the same name (#12873)"
2016-02-24 09:39:08 -05:00
Brad King b682debd65 Utilities/Release: Switch to OS X 10.7 and Qt 5.5 for Mac binary
Use a new build machine to produce the OS X binary targeting OS X 10.7
and using Qt 5.5.
2016-02-19 15:47:18 -05:00
Brad King 7f1bd9fe69 try_compile: Add option to control type of target
Create a `CMAKE_TRY_COMPILE_TARGET_TYPE` option to specify use
of `add_library(... STATIC ...)` for the generated test project.
This will be useful for cross-compiling toolchains that cannot
link a binary without custom flags or scripts.
2016-02-19 14:07:38 -05:00
Brad King c387325d4a Merge topic 'unix-timestamps'
6727270b CMake: Extend TIMESTAMP sub-commands with new unix time format specifier
2016-02-19 09:47:39 -05:00
Brad King d8cba5368b Tests: Fix XCTest when ENV{SDKROOT} is set
We use the host OS X version as the deployment target for this test.
This breaks if the SDKROOT environment variable specifies an
incompatible SDK version.  Explicitly specify `macosx` as the
SDK so that CMake will automatically select a version matching
the deployment target.
2016-02-19 09:28:27 -05:00
Brad King c05678ad28 Tests: Add option to disable FindPackageModeMakefileTest
This test does not work in all environments, so add an option to
disable it.
2016-02-19 09:10:44 -05:00
Brad King 091b649e19 Revert "Automoc: Fix support of files with the same name (#12873)"
This reverts commit 9beb2744d7.
Our AUTOMOC documentation states that it should be possible to
`#include "moc_foo.cpp"` in `foo.cpp`, and this will not work if
the file is placed in a different directory.  Another solution
will need to be found to the original problem.

Reported-by: Stephen Kelly <steveire@gmail.com>
2016-02-19 08:59:17 -05:00
Jose-Luis Blanco-Claraco 6727270b75 CMake: Extend TIMESTAMP sub-commands with new unix time format specifier
The new `%s` format specifier is substituted by file()/string()
`TIMESTAMP` sub-commands with the number of seconds since unix-epoch
(1970-01-01 00:00:00 UTC).

Co-Author: Nils Gladitz <nilsgladitz@gmail.com>
2016-02-18 10:30:13 -05:00
Brad King 2321e63734 Merge topic 'fix-static-private-non-target-depends'
87f44b75 Fix export of STATIC library PRIVATE non-target dependencies
2016-02-18 10:08:01 -05:00
Brad King 135a0df525 Merge topic 'automoc-src-per-dir'
9beb2744 Automoc: Fix support of files with the same name (#12873)
2016-02-18 10:07:56 -05:00
Brad King ef10f5259a Merge branch 'fix-static-private-non-target-depends' into release 2016-02-17 14:03:11 -05:00
Brad King 87f44b7525 Fix export of STATIC library PRIVATE non-target dependencies
In commit v3.5.0-rc1~43^2 (Fix export of STATIC library PRIVATE
dependencies with CMP0022 NEW, 2016-01-15) we taught
target_link_libraries to generate `$<LINK_ONLY:$<TARGET_NAME:dep>>` in
INTERFACE_LINK_LIBRARIES instead of `$<LINK_ONLY:dep>` so that `dep` can
be recognized as a target name and updated during export.  However, this
approach does not work when `dep` is just a plain library name and not a
target because `$<TARGET_NAME:...>` requires the name of a reachable
target.

Since we do not know during target_link_libraries whether the name will
correspond to a reachable target or not, we cannot inject the
`$<TARGET_NAME:...>` expression.  Revert this change and solve the
original problem instead by teaching the export logic to recognize and
update target names directly in `$<LINK_ONLY:...>` expressions.

Reported-by: Ben Boeckel <ben.boeckel@kitware.com>
2016-02-17 14:01:11 -05:00
Mariusz Pluciński 9beb2744d7 Automoc: Fix support of files with the same name (#12873) 2016-02-16 10:45:19 -05:00
Antonio Perez Barrero bb7a41ab9b FindProtobuf: check version
Check found libraries version to match user required version.

Protobuf compiler executable version is checked to be aligned with found
libraries, raising a warning message otherwise.
2016-02-16 10:09:39 -05:00
Brad King e0a3009cda Merge topic 'fix-cmake_parse_arguments-expansion'
c8c45a2c cmake_parse_arguments: Restore ;-list argument flattening
2016-02-16 09:52:34 -05:00
Brad King dde82df24c Merge topic 'cpack-rpm-upper-cased-components'
7c7efd1e CPack/RPM support for upper cased component variables
2016-02-16 09:52:30 -05:00
Domen Vrankar 7c7efd1ed9 CPack/RPM support for upper cased component variables
CPACK_* variables expect component name in upper case.
CPACK_RPM_* variables expected component name to be
in same case as component name.
This patch adds support for CPACK_RPM_* variables with
upper case component names to match the convention with
CPACK_* variables and also preserves same case component
names for back compatibility.
2016-02-13 02:09:32 +01:00
Ben Boeckel 326ad9949f Tests: fix GenerateExportHeader directory definitions
There's no need to stringify the values, but instead just pass in
strings. The core problem is that the path may have tokens which are
replaced by the preprocessor which causes an invalid path to be used.
2016-02-12 13:50:32 -05:00
Brad King 229a5bc903 Merge branch 'fix-cmake_parse_arguments-expansion' into release 2016-02-12 11:25:36 -05:00
Dimitar Yordanov c8c45a2c4e cmake_parse_arguments: Restore ;-list argument flattening
The re-implementation in commit v3.5.0-rc1~116^2~1 (CMakeParseArguments:
replace by native cmake_parse_arguments command, 2015-12-05) introduced
a regression when parsing the ARGN arguments with cmake_parse_arguments.
The original implementation used

    foreach(currentArg ${ARGN})

to iterate over input arguments.  This flattened ;-lists within the
arguments whether they were quoted or not.  Fix our new implementation
to preserve this behavior and add a test case to cover it.

Signed-off-by: Dimitar Yordanov <dimitar.yordanov@sap.com>
Signed-off-by: Matthias Maennich <matthias.maennich@sap.com>
2016-02-12 11:19:40 -05:00
Brad King 778fda1e92 Merge topic 'apple-isystem-gcc'
5b04aa31 Xcode: Disable test for system include dirs
2cae5128 Apple: Enable -isystem for GNU Compiler >= 4 (#15953)
2016-02-09 10:10:18 -05:00
Brad King 3b8c0fbfd7 Merge topic 'install-EXCLUDE_FROM_ALL'
586e56d0 Help: Add notes for topic 'install-EXCLUDE_FROM_ALL'
d321c196 Tests: Add cases for install() command EXCLUDE_FROM_ALL option
18ce97c4 install: Add EXCLUDE_FROM_ALL option (#14921)
2016-02-09 10:10:15 -05:00
Brad King 8aec0f955a Merge topic 'test-ctest_submit-update'
2859d9ef Tests: Extend ctest_submit host lookup failure matching (#15958)
2016-02-09 10:10:13 -05:00
Brad King e509c0e6d4 Merge topic 'fix-install-EXPORT-crash'
a1ad098d Tests: Avoid OS X 10.5 limitation warning in RunCMake.install test
47460f3e install(EXPORT): Fix crash on target in another directory
e86383e1 Tests: Use newer policy settings in RunCMake.install test
2016-02-09 10:10:09 -05:00
Brad King 656bf0da2c Merge branch 'fix-install-EXPORT-crash' into release 2016-02-08 10:46:42 -05:00
Brad King a1ad098dc8 Tests: Avoid OS X 10.5 limitation warning in RunCMake.install test
The EXPORT-OldIFace test case uses install(TARGETS) and so generates a
warning:

 CMake Warning in CMakeLists.txt:
   WARNING: Target "foo" has runtime paths which cannot be changed during
   install.  To change runtime paths, OS X version 10.6 or newer is required.
   Therefore, runtime paths will not be changed when installing.
   CMAKE_BUILD_WITH_INSTALL_RPATH may be used to work around this limitation.

Set CMAKE_BUILD_WITH_INSTALL_RPATH to avoid the warning since we do not
need to run the binaries from the build tree anyway.
2016-02-08 10:44:43 -05:00
Brad King 2a768f84e3 Merge branch 'test-ctest_submit-update' into release 2016-02-08 10:35:59 -05:00
Brad King bd15330da1 Merge topic 'test-FortranCInterface-again'
d31d7ffd Tests: Fix Fortran test to run FortranCInterface again
2016-02-08 10:33:07 -05:00
Brad King a7e2021fea Merge topic 'fix-Fortran-module-in-subdir'
c5eb21b6 Fix dependency scanning configuration in subdirectories
2016-02-08 10:33:04 -05:00
Brad King 08e5362004 Merge topic 'error-multiple-targets'
497cad7c cmake: Teach --build to reject multiple --target options
886acd80 Help: Fix reference to `cmake --build` in cmake(1) manual
2016-02-08 10:32:55 -05:00
Orion Poplawski 2859d9ef6b Tests: Extend ctest_submit host lookup failure matching (#15958)
Match this message:

    Could not resolve host: -no-site-; Name or service not known
                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2016-02-08 09:25:21 -05:00
Gregor Jasny 5b04aa31b8 Xcode: Disable test for system include dirs 2016-02-08 12:48:35 +01:00
Sebastian Schuberth 497cad7c88 cmake: Teach --build to reject multiple --target options
Previously we did not clearly document that `--target` is only supported
to be specified once.  Even worse, specifying it multiple times would
silently ignore any previously specified targets and only build the last
target.

Update the documentation to specify this.  Update the implementation to
reject multiple `--target` options to prevent user errors.
2016-02-05 11:48:16 -05:00
Brad King d31d7ffd1e Tests: Fix Fortran test to run FortranCInterface again
Updates to Tests/Fortran by commit v3.2.0-rc1~501^2 (Avoid if() quoted
auto-dereference, 2014-10-14) changed our check

    "${CMAKE_Fortran_COMPILER_ID}" MATCHES "${CMAKE_C_COMPILER_ID}"

to

    CMAKE_Fortran_COMPILER_ID MATCHES CMAKE_C_COMPILER_ID

because CMP0054 warned about the LHS compiler id "MSVC" being expanded.
However, the RHS of if(MATCHES) does not auto-dereference so this check
has returned FALSE since then and the FortranCInterface part of the test
has not been running!

Fix this by using STREQUAL with quoted arguments and setting CMP0054 to
NEW (by requiring 3.1).
2016-02-05 10:49:08 -05:00
Brad King 47460f3e15 install(EXPORT): Fix crash on target in another directory
Refactoring merged by commit v3.5.0-rc1~299 (Merge topic
'use-generator-target', 2015-10-20) in and around
commit v3.5.0-rc1~299^2~13 (cmExportSet: Store a cmGeneratorTarget,
2015-10-17) changed export sets to delay looking up actual targets and
stores only their names.  However, in InstallCommand::HandleExportMode
we need to lookup targets immediately to check them for
EXPORT_LINK_INTERFACE_LIBRARIES.  The check was accidentally made local
to the current directory, so if an export set contains a target from
another directory the lookup fails and CMake crashes.  Fix the check to
look up the target name globally, and tolerate when no target is found
just in case.

Reported-by: Kelly Thompson <kgt@lanl.gov>
2016-02-05 09:45:16 -05:00
Brad King e86383e135 Tests: Use newer policy settings in RunCMake.install test
In particular, avoid CMP0042 warnings on OS X.
2016-02-05 09:44:26 -05:00