Commit Graph

194 Commits

Author SHA1 Message Date
Stephen Kelly 8ed59fc207 Add target_compile_features command.
This can be used to set the compiler features required by particular
targets. An error is issued at CMake time if the compiler does not
support the required feature. If a language dialect flag is required
by the features used, that will be added automatically.

Base the target_compile_features command on cmTargetPropCommandBase. This
gives us 'free' handling of IMPORTED, ALIAS, INTERFACE, non-compilable
and missing targets.
2014-04-07 18:11:18 +02:00
Stephen Kelly 5412deded1 cmTarget: Transitively evaluate compiler features.
Extend the interface of the target_compile_features command with
PUBLIC and INTERFACE keywords. Populate the INTERFACE_COMPILER_FEATURES
target property if they are set. Consume the INTERFACE_COMPILER_FEATURES
target property from linked dependent targets to determine the final
required compiler features and the compile flag, if needed.

Use the same pattern of origin-debugging which is used for other
build properties.
2014-04-07 18:11:18 +02:00
Stephen Kelly 03355d6b5b cmTarget: Add COMPILE_FEATURES target property.
Use the contents of it to upgrade the CXX_STANDARD target property,
if appropriate.  This will have the effect of adding the -std=c++11
compile flag or other language specification on GNU when that is
needed for the feature.
2014-04-07 16:52:22 +02:00
Stephen Kelly faeddf64f2 project: Add infrastructure for recording CXX compiler features
Add a feature test using the compiler macros and the preprocessor to
determine available features.

Add a CMAKE_CXX_COMPILE_FEATURES variable which contains all features
known to the loaded compiler, and a CMAKE_CXX_KNOWN_FEATURES variable
containing all features known to CMake.  Add language standard specific
variables for internal use to determine the standard-specific compile
flags to use.

This will be extended to other languages in the future.  Follow-up
commits will add features which will be recorded by the feature test.
2014-04-07 16:48:44 +02:00
Stephen Kelly 913394af24 cmTarget: Add CXX_STANDARD and CXX_EXTENSION target properties.
These are used to determine whether to add -std=c++11, -std=gnu++11
etc flags on the compile line.
2014-04-07 16:48:44 +02:00
Brad King 5376151aa1 Merge topic 'target-transitive-sources'
9407174b target_sources: New command to add sources to target.
81ad69e0 Make the SOURCES target property writable.
6e636f2e cmTarget: Make the SOURCES origin tracable.
3676fb49 cmTarget: Allow transitive evaluation of SOURCES property.
e6971df6 cmTarget: Make the source files depend on the config.
df753df9 cmGeneratorTarget: Don't add computed sources to the target.
869328aa cmComputeTargetDepends: Use valid config to compute target depends.
2014-04-03 12:51:53 -04:00
Brad King 93054aa84f Merge topic 'target-sources-refactor'
5de63265 Genex: Only evaluate TARGET_OBJECTS to determine target sources.
aa0a3562 cmGeneratorTarget: Compute target objects on demand
042c1c83 cmTarget: Compute languages from object libraries on demand.
fdcefe3c cmGeneratorTarget: Compute consumed object libraries on demand.
c355d108 cmComputeTargetDepends: Track object library depends.
e5da9e51 cmTarget: Allow any generator expression in SOURCES property.
5702e106 cmTarget: Include TARGET_OBJECTS genex in target SOURCES property.
857d30b5 cmGlobalGenerator: Add interface to call ForceLinkerLanguages
28e1d2f8 cmStringCommand: Add GENEX_STRIP subcommand.
bf98cc25 Genex: Evaluate TARGET_OBJECTS as a normal expression.
8cd113ad cmTarget: Store strings instead of cmSourceFile* to represent SOURCES.
4959f341 cmSourceFileLocation: Collapse full path for directory comparisons.
fcc92878 cmSourceFileLocation: Remove unused Update method.
59e8740a cmTarget: Remove AddSourceFile method
26d494ba cmTarget: Use string API to add sources to cmTarget objects.
d38423ec cmTarget: Add a method to obtain list of filenames for sources.
...
2014-04-03 12:51:51 -04:00
Brad King 1d4366ffac Merge topic 'revise-compiler-id-policies'
13684e2b cmMakefile: Port PolicyOptionalWarningEnabled to string APIs
8018fcca Merge branch 'master' into revise-compiler-id-policies
a41c0a9d Do not warn by default when policy CMP0025 or CMP0047 is not set
d339653e Help: Revise and format policy CMP0025 and CMP0047 docs
2014-04-03 12:51:49 -04:00
Stephen Kelly 9407174b1a target_sources: New command to add sources to target. 2014-04-02 23:14:02 +02:00
Stephen Kelly 3676fb4963 cmTarget: Allow transitive evaluation of SOURCES property.
Extend the cmGeneratorExpressionDAGChecker with an interface
returning the name of the top target.  Use that to determine
when there is a DAG violation, as required by the RunCMake.Languages
tests.
2014-04-02 23:14:02 +02:00
Stephen Kelly 5de63265e3 Genex: Only evaluate TARGET_OBJECTS to determine target sources.
The output of this expression may contain macros for IDEs to replace
such as $(Configuration), $(CURRENT_ARCH) etc.  To avoid generating
content which is not usable in other contexts, report an error if
there is an attempt to use it in other contexts.

This commit may be reverted in the future if a solution to the
above difference is implemented.
2014-04-02 23:12:57 +02:00
Stephen Kelly 5702e10677 cmTarget: Include TARGET_OBJECTS genex in target SOURCES property.
Add policy CMP0051 to control this behavior.
2014-04-02 23:12:56 +02:00
Brad King 8018fcca6e Merge branch 'master' into revise-compiler-id-policies 2014-04-02 14:44:35 -04:00
Brad King a41c0a9dcb Do not warn by default when policy CMP0025 or CMP0047 is not set
These policies are triggered by the use of a particular compiler rather
than outdated CMake code in a project.  Avoid warning in every project
that enables a language by not displaying the policy warning by default.
Add variable CMAKE_POLICY_WARNING_CMP<NNNN> to control the warning
explicitly; otherwise enable the warning with --debug-output or --trace.

This breaks with strict policy convention because it does not provide
developers with any warning about the behavior change by default.
Existing projects will continue to build without a warning or change in
behavior.  When a developer changes the minimum required version of
CMake in a project to a sufficiently high value (3.0), the project will
suddenly get the new compiler id and may break, but at least the
breakage comes with a change to the project rather than the version of
CMake used to build it.

Breaking strict policy convention is worthwhile in this case because
very few projects will be affected by the behavior change but every
project would have to see the warning if it were enabled by default.
2014-04-02 14:43:54 -04:00
Alex Merry fcdf86d004 Help: Rewrite the cmake-developer.7 find module documentation
As well as the traditional variables, providing imported targets is
suggested, and the relative advantages and disadvantages briefly
discussed.

A mini-tutorial walking through creating a simple find module is
provided.

This changes the recommended version variable from Foo_VERSION_STRING to
Foo_VERSION, because there is really no need to have different variable
names for package version files vs. find modules.  It notes the old
variable name, though, and suggests setting it for compatibility.
2014-04-02 10:59:29 -04:00
Stephen Kelly bf98cc252f Genex: Evaluate TARGET_OBJECTS as a normal expression. 2014-03-31 23:18:44 +02:00
Brad King 63c6325487 Merge topic 'fix-Qt-manual-typo'
dcfbbe87 Help: Fix typo in cmake-qt manual.
2014-03-26 13:24:47 -04:00
Stephen Kelly dcfbbe87eb Help: Fix typo in cmake-qt manual.
Do -> To.
2014-03-26 17:50:08 +01:00
Brad King 328c217960 Help: Drop cmStdString from cmake-developer(7) examples
The type no longer exists within CMake.
2014-03-13 15:11:22 -04:00
Brad King e21ffaf8fe Merge topic 'doc-osx-path-variables'
764e977a Help: Document variables CMAKE_APPBUNDLE_PATH and CMAKE_FRAMEWORK_PATH
2014-03-10 10:35:32 -04:00
Brad King 29d4f6b03b Merge branch 'doc-osx-path-variables' into release 2014-03-10 10:24:16 -04:00
Brad King 764e977ad7 Help: Document variables CMAKE_APPBUNDLE_PATH and CMAKE_FRAMEWORK_PATH 2014-03-10 10:23:42 -04:00
Brad King 27defbd6d4 Merge topic 'add-FindOpenCL'
1b08e609 Help: Add release notes for topic 'add-FindOpenCL'
041485bc Add FindOpenCL module
2014-02-28 09:48:30 -05:00
Brad King 041ba1eefd Merge topic 'INTERFACE-property-docs'
ad75afbf Help: List the whitelist of properties for INTERFACE libraries.
2014-02-26 09:38:58 -05:00
Brad King fba51b096e MSVC: Add properties to configure compiler PDB files (#14762)
Since commit v2.8.12~437^2~2 (VS: Separate compiler and linker PDB files
2013-04-05) we no longer set /Fd with the PDB_NAME or PDB_OUTPUT_DIRECTORY
properties.  Those properties now exclusively handle linker PDB files.
Since STATIC libraries do not link their compiler PDB file becomes more
important.  Add new target properties "COMPILE_PDB_NAME[_<CONFIG>]" and
"COMPILE_PDB_OUTPUT_DIRECTORY[_<CONFIG>]" to specify the compiler PDB
file location and pass the value to the MSVC /Fd option.
2014-02-26 09:34:38 -05:00
Matthäus G. Chajdas 041485bc16 Add FindOpenCL module 2014-02-26 08:53:00 -05:00
Stephen Kelly ad75afbfb4 Help: List the whitelist of properties for INTERFACE libraries. 2014-02-26 10:40:49 +01:00
Brad King a7c956b867 Merge topic 'doc-usage-requirements'
0c54b775 Help: Document the purpose of usage requirements clearly.
2014-02-19 08:34:29 -05:00
Brad King 5a607c4a6f Merge topic 'doc-package-registry'
bf012e0c Help: Format find_package() command documentation
bd6887e4 Help: Document the package registry in cmake-packages.7
2014-02-19 08:34:22 -05:00
Stephen Kelly 0c54b775a4 Help: Document the purpose of usage requirements clearly.
People will be tempted to put things there for convenience, thereby
causing conflicts similar to

 http://thread.gmane.org/gmane.comp.compilers.clang.devel/35162/focus=35169

where it is conceivable that the LLVM developers could put a flag on
a target for convenience, which would cause conflicts for some downstreams.
2014-02-18 16:08:44 +01:00
Brad King bd6887e4d6 Help: Document the package registry in cmake-packages.7
Port documentation from the CMake Wiki page at:

 http://www.cmake.org/Wiki/CMake/Tutorials/Package_Registry

as of 2014-02-17 into our main documentation.
2014-02-17 15:34:48 -05:00
Stephen Kelly a74d125a7c Help: Fix typo
binary_find -> binary_search.
2014-02-17 11:07:59 +01:00
Stephen Kelly f2eee72fac add_custom_command: Disallow use of SOURCE signatures.
Add CMP0050 to control this behavior.
2014-02-12 11:19:27 -05:00
Stephen Kelly c248a437c4 Add policy CMP0049 to avoid variable expansion in source lists 2014-02-12 11:17:38 -05:00
Brad King 89d49eccc5 Merge topic 'extend-docs'
0b3e98d9 Help: Don't list debuggable properties in cmake-buildsystem manual.
39d08b92 Help: Add additional hyperlink targets
ef17e293 Help: Document SYSTEM treatment of IMPORTED target INTERFACE_INCLUDE_DIRS
2014-02-10 11:25:10 -05:00
Stephen Kelly 0b3e98d913 Help: Don't list debuggable properties in cmake-buildsystem manual. 2014-02-10 09:03:53 +01:00
Stephen Kelly 39d08b929e Help: Add additional hyperlink targets 2014-02-09 12:11:09 +01:00
Stephen Kelly ef17e29389 Help: Document SYSTEM treatment of IMPORTED target INTERFACE_INCLUDE_DIRS
Document how the behavior can be controlled.
2014-02-09 12:11:09 +01:00
Brad King 4b7f2f5213 Help: Add hyperlink targets for argument types in cmake-language(7)
Add reStructuredText hyperlink targets for the bracket, quoted, and
unquoted argument sections.
2014-02-07 13:35:50 -05:00
Stephen Kelly a683262a72 Help: Note that the compatible interface properties must not intersect. 2014-02-06 16:15:53 -05:00
Stephen Kelly fbe01bedbe Help: Specify how to order and modify transitively set property values. 2014-02-06 16:15:53 -05:00
Stephen Kelly 645500b413 Help: Add hyperlink targets to some manual sections.
These can be refered to from the command documentation and other
relevant locations.
2014-02-06 16:15:53 -05:00
Stephen Kelly a0fa025377 Help: Mark up references to NEW and OLD policy settings properly. 2014-02-06 16:15:52 -05:00
Stephen Kelly 6c02e7f427 Help: Add a style guide. 2014-02-06 16:15:50 -05:00
Stephen Kelly 91fbff8820 Help: Fix typos
Psuedo -> Pseudo

 behaviour -> behavior

CMake uses American spelling.
2014-02-06 16:14:13 -05:00
Brad King 2e2552af65 Merge topic 'cmake-qt-manual'
4271a4ed Help: Add information about INTERFACE_AUTOUIC_OPTIONS.
7935f4de Help: Note that AUTOMOC consumes the defines and includes from targets.
2739a6f9 Help: Move Qt tool invocation information to a generic cmake-qt manual.
2014-02-03 11:11:14 -05:00
Stephen Kelly 4271a4ed35 Help: Add information about INTERFACE_AUTOUIC_OPTIONS. 2014-02-02 11:50:16 +01:00
Stephen Kelly 7935f4dec8 Help: Note that AUTOMOC consumes the defines and includes from targets. 2014-02-02 11:34:04 +01:00
Stephen Kelly 2739a6f97e Help: Move Qt tool invocation information to a generic cmake-qt manual.
Add an introduction about the use of different package types, and the
ability to use Qt 4 and 5 versions together in a single buildsystem.

Add a section about automatic linking of the qtmain.lib library and
how to disable it.
2014-02-02 11:28:12 +01:00
Brad King 7e142c5ac2 project: Manage VERSION variables
Teach the project() command to set variables

  {PROJECT,<PROJECT-NAME>}_VERSION{,_MAJOR,_MINOR,_PATCH,_TWEAK}

holding the project version number and its components.  Add project()
command option "VERSION" to specify the version explicitly, and default
to the empty string when it is not given.

Since this clears variables when no VERSION is given, this may change
behavior for existing projects that set the version variables themselves
prior to calling project().  Add policy CMP0048 for compatibility.

Suggested-by: Alex Neundorf <neundorf@kde.org>
2014-01-29 09:45:18 -05:00