Commit Graph

101 Commits

Author SHA1 Message Date
Brad King d582c23a47 try_compile: Add policy CMP0066 to honor CMAKE_<LANG>_FLAGS_<CONFIG>
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`).
However, some projects may currently depend on this not being done,
so we need to activate the behavior using a policy.

This change was originally made by commit v3.6.0-rc1~160^2 (try_compile:
Honor CMAKE_<LANG>_FLAGS_<CONFIG> changes, 2016-04-11) but without the
policy and so had to be reverted during the 3.6 release candidate cycle.

Fixes #16174.
2016-06-29 09:11:02 -04:00
Brad King db4ba61f39 Merge topic 'revert-try_compile-config-flags'
943fe6e3 Revert "try_compile: Honor CMAKE_<LANG>_FLAGS_<CONFIG> changes"
2016-06-29 09:07:28 -04:00
Brad King 943fe6e3b4 Revert "try_compile: Honor CMAKE_<LANG>_FLAGS_<CONFIG> changes"
Revert commit v3.6.0-rc1~160^2 (try_compile: Honor
CMAKE_<LANG>_FLAGS_<CONFIG> changes, 2016-04-11).  The behavior it
introduced can break projects that depend on the lack of such behavior.
We will have to introduce a policy or other mechanism to enable the
behavior in a compatible way.  Simply revert it for now.

See issue #16174.
2016-06-28 15:03:45 -04:00
Daniel Pfeifer 1d6909a287 use CM_NULLPTR 2016-06-28 09:02:26 -04:00
Brad King d256ba078a try_compile: Optionally forward custom platform variables to test project
Add a `CMAKE_TRY_COMPILE_PLATFORM_VARIABLES` variable to specify a list
of custom variables to be forwarded to a `try_compile` test project.
This will be useful for platform information modules or toolchain files
to forward some platform-specific set of variables from the host project
(perhaps set in its cache) to the test project so that it can build the
same way.
2016-05-25 09:36:19 -04:00
Brad King fb4791b37c cmCoreTryCompile: Refactor forwarding of variables to test project
De-duplicate the logic that constructs the cmake `-D` flag used to pass
variables into the test project cache.  Also subsume variables that were
propagated by generating `set()` commands in the project and pass them
as cache entries instead.
2016-05-25 09:36:19 -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 64b5520346 Isolate formatted streaming blocks with clang-format off/on
The clang-format tool can do a good job formatting most code, but
well-organized streaming blocks are best left manually formatted.

Find blocks of the form

    os <<
      "...\n"
      "...\n"
      ;

using the command

    $ git ls-files -z -- Source |
      egrep -v -z '^Source/kwsys/' |
      xargs -0 pcregrep -M --color=always -B 1 -A 1 -n \
        '<<[^\n]*\n(^ *("[^\n]*("|<<|;)$|;)\n){2,}'

Find blocks of the form

    os << "...\n"
       << "...\n"
       << "...\n";

using the command

    $ git ls-files -z -- Source |
      egrep -v -z '^Source/kwsys/' |
      xargs -0 pcregrep -M --color=always -B 1 -A 1 -n \
        '<<[^\n]*\n(^ *<<[^\n]*(\\n"|<<|;)$\n){2,}'

Surround such blocks with the pair

    /* clang-format off */
    ...
    /* clang-format on */

in order to protect them from update by clang-format.  Use the C-style
`/*...*/` comments instead of C++-style `//...` comments in order to
prevent them from ever being swallowed by re-formatting of surrounding
comments.
2016-05-06 14:25:55 -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 180538c706 Source: Stabilize include order
Each source file has a logical first include file.  Include it in an
isolated block so that tools that sort includes do not move them.
2016-04-29 13:58:31 -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 82ef90fcfc cmCoreTryCompile: Factor out config lookup for re-use
Store the lookup of CMAKE_TRY_COMPILE_CONFIGURATION in a local variable
so we can re-use it.
2016-04-11 10:39:04 -04:00
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
Stephen Kelly 1293c1561a cmExportTryCompileFileGenerator: Port to cmGeneratorTarget. 2015-10-18 16:29:29 +02:00
Stephen Kelly 55474e6182 cmState: Move GetTargetTypeName from cmTarget. 2015-10-15 00:41:40 +02:00
Stephen Kelly eac15298a8 cmState: Move TargetType enum from cmTarget.
Mostly automated:

 values=( "EXECUTABLE" "STATIC_LIBRARY" "SHARED_LIBRARY" "MODULE_LIBRARY" "OBJECT_LIBRARY" "UTILITY" "GLOBAL_TARGET" "INTERFACE_LIBRARY" "UNKNOWN_LIBRARY" "TargetType")
 for i in "${values[@]}"; do     git grep -l cmTarget::$i | xargs sed -i "s|cmTarget::$i|cmState::$i|g"; done
2015-10-15 00:41:39 +02:00
Brad King 710bde43aa cmCoreTryCompile: Fix internal argument vector construction
In TryCompileCode we construct an internal argv[] vector that needs to
have a fake argv[0] so our internal cmake command line looks like a real
command line.  Fix construction of the fake argv[0] when try_compile is
called without the CMAKE_FLAGS argument.  Otherwise the first internal
-DVAR=val argument that we use to pass information like
CMAKE_OSX_SYSROOT is ignored.
2015-09-24 15:26:32 -04:00
Chuck Atkins b15f4e9b86 try_compile: Propogate CMP0065 to the generated project.
Set policy CMP0065 to the value used in the calling project.

Set the the value of CMAKE_ENABLE_EXPORTS if set in the calling
project to initialize the target property appropriately.
2015-09-21 10:12:13 -04:00
Chuck Atkins fb77c2c54b try_compile: Propogate the CMAKE_LINK_SEARCH_ variables 2015-08-14 11:48:01 -04:00
Stephen Kelly 570938cbfd cmExportTryCompileFileGenerator: Create cmGeneratorTargets.
This is not a deprecated behavior, but only requires IMPORTED targets
be made.
2015-07-27 21:59:03 +02:00
Stephen Kelly 59e21ffa13 Port static calls from cmLocalGenerator to cmOutputConverter. 2015-06-06 09:15:58 +02:00
Stephen Kelly 9486769866 Don't use a cmLocalGenerator instance to call static methods. 2015-05-14 20:30:09 +02:00
Stephen Kelly de21168612 Port to static cmPolicies API. 2015-05-04 22:32:20 +02:00
Stephen Kelly f081c5bddd cmState: Move CacheEntryType enum from cmCacheManager. 2015-04-13 11:44:16 -04:00
Stephen Kelly 7916d7bac6 Include cmAlgorithms where it is used. 2015-03-11 00:17:29 +01:00
Stephen Kelly 416df93aa9 Convert some raw loops to cmWrap. 2015-02-20 21:36:57 +01:00
Stephen Kelly a281809384 Use cmJoin where possible. 2015-02-20 21:26:18 +01:00
Stephen Kelly 2d833232a3 cmCoreTryCompile: Remove variable assignment.
The variable is not a reference, and we return in the same scope
after assigning, so it has no effect.
2015-02-17 19:23:27 +01:00
Brad King f3e9eeedf4 try_compile: Use shorter test executable name with consistent length
Since commit v2.8.8~176^2 (try_compile: Use random executable file name,
2012-02-13) the length of the test executable name in generated
try_compile projects has been longer and unpredictable.  With Visual
Studio on windows, the tools try to create paths like:

 CMakeFiles/CMakeTmp/$tgt.dir/Debug/$tgt.tlog/$tgt.lastbuildstate

With the target name repeated up to 3 times, we must make it short and
of consistent length to avoid overrunning the 260 character limit
imposed by VS tools.
2015-02-10 10:28:41 -05:00
Nils Gladitz 220c427e84 try_compile: Quote the content of CMAKE_MODULE_PATH to allow for spaces 2015-02-09 10:51:22 +01:00
Brad King 8def82585c Merge topic 'try-run-link-libraries'
d0adcccb try_run: Add tests for LINK_LIBRARIES with mock libraries.
223c5cb7 try_run: Add test for bad link libraries.
e2b1f058 try_run: Add support for LINK_LIBRARIES option.
2015-01-26 10:28:25 -05:00
Matt McCormick e2b1f0583f try_run: Add support for LINK_LIBRARIES option.
Most functionality is already implemented in Source/cmCoreTryCompile.{h,cxx}.
Document and improve argument parsing.

This functionality is already being used by a number of modules, like
CheckCSourceCompiles.cmake, but it is not documented.
2015-01-26 10:05:26 -05:00
Stephen Kelly fd7b371293 Replace foo.size() pattern with !foo.empty(). 2015-01-18 14:25:24 +01:00
Stephen Kelly d92887efab Replace 'foo.size() > 0' pattern with !foo.empty(). 2015-01-18 14:25:24 +01:00
Stephen Kelly 931e055d8c Port all cmOStringStream to std::ostringstream.
All compilers hosting CMake support the std class.
2015-01-11 17:06:03 +01:00
Brad King 88eb5824da try_compile: Pass linker flags into test project (#14066)
Copy CMAKE_EXE_LINKER_FLAGS into the test project generated by
try_compile, just like we already copy CMAKE_<LANG>_FLAGS.

Add CMake Policy CMP0056 to activate this behavior in a compatible way,
but do not warn by default when the policy is not set since it will
affect all try_compile calls.

Extend the RunCMake.try_compile test with a case covering this behavior
for each policy setting.
2014-12-03 15:30:22 -05:00
Brad King a4f9b6f0ca CMakeDetermineCompilerABI: Use normal linker flags in ABI project
When compiling the ABI detection test project, do not override
CMAKE_EXE_LINKER_FLAGS completely.  The normally selected value of this
variable may influence how the link is done and may be needed to be
representative of how the calling project will be built.  Instead pass a
variable that try_compile will reference as additional flags.  Leave
this behavior of try_compile undocumented for now.
2014-12-03 14:53:14 -05:00
Nils Gladitz cc1139cc30 strings: Remove redundant calls to std::string::c_str()
Replacements were detected and performed by the clang tool
remove-cstr-calls on a linux build.
2014-10-15 14:54:05 +02:00
Bill Hoffman 55a885da00 Teach try_compile COPY_FILE to look for IOS app bundles.
The COPY_FILE option on try_compile never looked for IOS application
bundles. This caused it to fail if the CMAKE_MACOSX_BUNDLE was set.
2014-09-23 10:59:08 -04:00
Brad King 30983ebec1 cmGlobalGenerator: Take Build output argument by reference
No call sites pass NULL to the output argument, so take it by
reference to avoid the if(output) conditions.  Propagate the
change through the TryCompile APIs that call it.
2014-07-31 12:49:51 -04:00
Stephen Kelly af8a1643c1 Remove c_str calls when using stream APIs.
Use an ad-hoc clang tool for matching the calls which should be
ported.
2014-03-11 15:03:50 +01:00
Stephen Kelly 21c573f682 Remove some c_str() calls.
Use the clang RemoveCStrCalls tool to automatically migrate the
code. This was only run on linux, so does not have any positive or
negative effect on other platforms.
2014-03-11 15:03:50 +01:00
Ben Boeckel 84fdc9921c stringapi: Pass configuration names as strings 2014-03-08 13:05:36 -05:00
Ben Boeckel 270eb96df0 strings: Remove cmStdString references
Casts from std::string -> cmStdString were high on the list of things
taking up time. Avoid such implicit casts across function calls by just
using std::string everywhere.

The comment that the symbol name is too long is no longer relevant since
modern debuggers alias the templates anyways and the size is a
non-issue since the underlying methods are generated since it's
inherited.
2014-03-08 13:05:35 -05:00
Ben Boeckel fabf1fbabb stringapi: Use strings in target name 2014-03-08 13:05:31 -05:00
Ben Boeckel ce5114354c stringapi: Use strings for the languages 2014-03-08 13:05:30 -05:00
Brad King 7b1f966a6c Windows: Make file delete/rename retry configurable
Several CMake operations need to replace files in rapid succession.
This commonly fails on Windows due to filesystem lock behavior so
we have retry loops.  No matter how many times we retry or how long
we delay there will inevitably be someone with an environment that
needs more.  Make the retry count and delay configurable in the
Windows Registry keys:

 {HKCU,HKLM}/Software/Kitware/CMake/Config

in DWORD values

 FilesystemRetryCount = Number of tries
 FilesystemRetryDelay = Delay in milliseconds between tries

Leave the feature undocumented for now to see how it goes.
2014-02-12 09:55:41 -05:00
Rolf Eike Beer c768e398f9 cmMakefile: make some methods take const std::string& instead of const char*
Most callers already have a std::string, on which they called c_str() to pass it
into these methods, which internally converted it back to std::string. Pass a
std::string directly to these methods now, avoiding all these conversions.
Those methods that only pass in a const char* will get the conversion to
std::string now only once.
2014-01-16 09:28:29 -05:00
Clinton Stimpson 5730710c86 Use cmsys::[io]fstream instead of cmsys_ios::[io]fstream.
Also use SystemTools::Fopen() instead of fopen().
This is to eventually support utf-8 filenames.
2014-01-07 09:27:44 -05:00
Stephen Kelly 7cd65c97fa Add CMAKE_SYSROOT variable to set --sysroot when cross compiling.
As CMAKE_ROOT_FIND_PATH can be a list, a new CMAKE_SYSROOT is
introduced, which is never a list.

The contents of this variable is passed to supporting compilers
as --sysroot. It is also accounted for when processing implicit
link directories reported by the compiler, and when generating
RPATH information.
2013-11-19 12:39:39 -05:00