Commit Graph

564 Commits

Author SHA1 Message Date
Stephen Kelly effe874d25 Xcode: Prefer to get target state from cmGeneratorTarget. 2015-10-24 09:19:54 +02:00
Stephen Kelly 8616d12cfc Xcode: Re-order conditions. 2015-10-24 09:19:54 +02:00
Stephen Kelly ed4ea59a33 Xcode: Port ForceLinkerLanguage to cmGeneratorTarget. 2015-10-24 09:19:54 +02:00
Stephen Kelly 634155d695 Xcode: Port loops to cmGeneratorTarget. 2015-10-24 09:19:53 +02:00
Stephen Kelly 67b2f4312c Port to GetGeneratorTargets. 2015-10-24 09:19:53 +02:00
Gregor Jasny 601e6e1ad1 Xcode: Use regular expression to extract all optimisation flags (#15794) 2015-10-23 19:29:09 +02:00
Stephen Kelly a8c0fbcc19 cmLocalGenerator: Store a vector of generator targets.
Not a map from cmTarget to cmGeneratorTarget.
2015-10-21 23:21:01 +02:00
Brad King 9206120e30 Merge topic 'use-generator-target'
c099e00f Access policy status from cmGeneratorTarget at generate time.
d74bca5a cmGeneratorTarget: Copy the policy map from the cmTarget.
c6e86955 cmTarget: Remove unused NameResolvesToFramework.
18046bd5 cmCommonTargetGenerator: Use NameResolvesToFramework without cmTarget.
91411641 Move ComputeLinkType out of cmTarget.
6d94078e cmGeneratorTarget: Move IsDLLPlatform from cmTarget.
3ebc6285 cmGeneratorTarget: Move HaveWellDefinedOutputFiles from cmTarget.
311018e5 cmGeneratorTarget: Move GetExportMacro from cmTarget.
215cd21a cmGeneratorTarget: Provide direct access to the backtrace.
1df8bd3a cmGlobalGenerator: Port IsRootOnlyTarget to cmGeneratorTarget.
83703bda cmGeneratorTarget: Copy IsExecutableWithExports from cmTarget.
2015-10-21 09:17:01 -04:00
Stephen Kelly 311018e5ad cmGeneratorTarget: Move GetExportMacro from cmTarget. 2015-10-21 00:52:22 +02:00
Stephen Kelly 04b6bb1676 cmLocalGenerator: Simplify semantic of adding generator targets.
Don't store on the global generator as a side effect.  Update clients to adapt.
2015-10-20 23:58:49 +02:00
Stephen Kelly d8f8940bc6 cmGeneratorTarget: Move IsCFBundleOnApple from cmTarget. 2015-10-19 20:27:41 +02:00
Stephen Kelly 7550879f57 cmGeneratorTarget: Move IsXCTestOnApple from cmTarget. 2015-10-19 20:27:41 +02:00
Stephen Kelly b5f5de70c0 cmGeneratorTarget: Copy IsFrameworkOnApple from cmTarget.
Leave the cmTarget method behind for now to implement cmInstallCommand.
2015-10-19 20:27:41 +02:00
Stephen Kelly a527abf099 Xcode: Port internal API to cmGeneratorTarget. 2015-10-18 16:29:30 +02:00
Stephen Kelly 37ab74a607 cmLocalGenerator: Port PList handling to cmGeneratorTarget. 2015-10-18 16:29:29 +02:00
Stephen Kelly 3e8ef64273 cmLocalGenerator: Port some API to cmGeneratorTarget. 2015-10-17 17:30:38 +02:00
Stephen Kelly 12e4790a0b cmGeneratorTarget: Move GetTargetVersion from cmTarget. 2015-10-16 20:24:44 +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
Stephen Kelly 2293d43d00 cmLocalGenerator: Store cmGeneratorTargets.
Relieve cmMakefile of this responsibility.
2015-10-14 13:32:09 -04:00
Stephen Kelly 11165525ba cmGeneratorExpression: Port to cmLocalGenerator. 2015-10-12 23:07:46 +02:00
Brad King aad0e62060 Merge topic 'use-generator-target'
1c1c2a12 cmGeneratorTarget: Port ExpandLinkItems away from cmTarget.
c66084f5 cmGeneratorTarget: Port GetImportLinkInterface away from cmTarget.
83c29e39 cmGeneratorTarget: Port ComputeLinkImplementationLibraries away from cmTarget.
19882554 cmGeneratorTarget: Port handleSystemIncludesDep away from cmTarget.
c1f687b1 cmGeneratorTarget: Port GetLinkImplementationLibrariesInternal.
a6e1f05c cmGeneratorTarget: Port ComputeLinkInterface away from cmTarget.
654002fe cmGeneratorTarget: Port ComputeLinkInterfaceLibraries away from cmTarget.
922c8901 cmGeneratorTarget: Port GetLinkInterface away from cmTarget.
eaa5b9cb cmGeneratorTarget: Port cmTargetCollectLinkLanguages away from cmTarget.
f539da12 cmGeneratorTarget: Port GetLinkInterfaceLibraries away from cmTarget.
1c5d70f9 cmGeneratorTarget: Port processILibs away from cmTarget.
064c2488 cmComputeLinkDepends: Port some API to cmGeneratorTarget.
3e428fdc cmGeneratorTarget: Move IsImportedSharedLibWithoutSOName from cmTarget.
110fd2fb cmGeneratorTarget: Move GetOutputTargetType from cmTarget.
e7391699 cmGeneratorTarget: Move HasMacOSXRpathInstallNameDir from cmTarget.
c5718217 cmGeneratorTarget: Move HaveInstallTreeRPATH from cmTarget.
...
2015-10-12 10:26:20 -04:00
Stephen Kelly a367416cec cmLocalGenerator: Add current source directory accessor. 2015-10-10 11:04:39 +02:00
Stephen Kelly bbef3c2da8 cmLocalGenerator: Add current binary directory accessor. 2015-10-10 11:04:39 +02:00
Stephen Kelly 1abc20d81d cmGeneratorTarget: Move UsesDefaultOutputDir from cmTarget. 2015-10-09 01:04:38 +02:00
Stephen Kelly 8b0168863e cmGeneratorTarget: Move GetDirectory from cmTarget. 2015-10-09 01:04:37 +02:00
Stephen Kelly 12cb3bdce4 cmLocalGenerator: Add Home directory accessors.
Reduce reasons for cmLocalGenerator to have a cmMakefile.
2015-10-09 00:00:19 +02:00
Stephen Kelly 4ab2750c54 cmLocalGenerator: Add GetProjectName method. 2015-10-09 00:00:18 +02:00
Stephen Kelly af71c7b479 cmTarget: Remove Compute method. 2015-10-07 20:17:55 +02:00
Stephen Kelly 776ff8eb0b cmTarget: Add Compute API for sources.
This method is a refactoring artifact.  It will be removed in a
follow-up.
2015-10-07 08:37:57 +02:00
Stephen Kelly c38e30f68c cmGeneratorTarget: Add methods for generate-time source addition. 2015-10-07 08:37:57 +02:00
Stephen Kelly 156bd2c983 Xcode: Port away from unnecessary CMP0049 compatibility.
The input does not need the conversion.
2015-10-06 20:16:21 +02:00
Stephen Kelly 4407eee013 cmGlobalGenerator: Call AddExtraIDETargets as a hook of Compute().
Relieve the Xcode generator of having to reimplement Compute().
2015-10-05 18:43:17 +02:00
Stephen Kelly a09c545d3a Xcode: Extract a AddExtraIDETargets method. 2015-10-05 18:43:17 +02:00
Stephen Kelly ff8ac8ee6a cmLocalGenerator: Create from already-constructed cmMakefile.
Don't manage the lifetime of the cmMakefile with cmLocalGenerator.
2015-08-28 18:44:39 +02:00
Stephen Kelly 9b6a743b80 cmLocalGenerator: Remove Parent pointer. 2015-08-28 18:44:38 +02:00
Stephen Kelly c2b7336ff3 cmGeneratorTarget: Move GetConfigCommonSourceFiles from cmTarget. 2015-08-26 19:46:33 +02:00
Stephen Kelly 69329fff70 cmGeneratorTarget: Move GetLanguages from cmTarget. 2015-08-26 19:46:32 +02:00
Stephen Kelly d4a24c0e95 cmGeneratorTarget: Move GetLinkImplementation from cmTarget. 2015-08-26 19:46:32 +02:00
Stephen Kelly 3846ebcf2b cmLinkItem: Add cmLinkImplementation type. 2015-08-26 19:46:31 +02:00
Stephen Kelly a7f5d70dde cmGeneratorTarget: Move compile defintions processing from cmTarget. 2015-08-26 19:46:30 +02:00
Stephen Kelly 44ffb9cdb4 Replace foo.size() pattern with !foo.empty(). 2015-08-24 20:47:18 +02:00
Stephen Kelly 1f54bc1cf3 cmTarget: Split storage of include directories from genexes. 2015-08-07 17:06:15 +02:00
Stephen Kelly 7c809fa2a6 cmGeneratorTarget: Move GetLinkerLanguage from cmTarget. 2015-08-05 18:20:48 +02:00
Stephen Kelly d6bb319b09 cmGeneratorTarget: Move GetFullName from cmTarget.
Bring GetFullNameInternal with it.
2015-08-05 18:20:48 +02:00
Stephen Kelly d560bfd273 cmGeneratorTarget: Move GetInstallNameDir* from cmTarget. 2015-08-05 18:20:47 +02:00
Stephen Kelly 62720e44be cmGeneratorTarget: Move GetFullNameComponents from cmTarget. 2015-08-05 18:20:47 +02:00
Stephen Kelly f0aa660772 cmGeneratorTarget: Move HasSOName from cmTarget. 2015-08-05 18:20:46 +02:00
Stephen Kelly 803a7982b4 cmGeneratorTarget: Move GetLinkInformation from cmTarget 2015-08-05 18:20:44 +02:00
Stephen Kelly 41abdc17df cmGeneratorTarget: Move GetSOName from cmTarget.. 2015-08-05 18:20:43 +02:00
Stephen Kelly 5edb335485 cmGlobalGenerator: Virtualize the Compute step and override it. 2015-07-30 08:28:31 +02:00
Stephen Kelly ff1019bfac cmGlobalGenerator: Move generation object creation to Compute(). 2015-07-30 08:28:30 +02:00
Stephen Kelly aa2407d84d Xcode: Use allBuild target return value. 2015-07-29 10:43:34 -04:00
Stephen Kelly 32e4f6beca Xcode: Skip Global targets when processing. 2015-07-29 10:43:32 -04:00
Stephen Kelly ec38e4c84f Move GetFullPath to cmGeneratorTarget 2015-07-27 21:59:02 +02:00
Stephen Kelly d568eefe10 cmCustomCommandGenerator: Require cmLocalGenerator in API. 2015-07-27 20:09:38 +02:00
Brad King bf11253163 Add rudimentary support for the Apple Swift language with Xcode
Allow the `Swift` language to be enabled with the Xcode generator for
Xcode >= 6.1.  Reject it on other generators and with older Xcode
versions.  Since Apple is the only vendor implementing the language
right now, the compiler id can be just `Apple`.
2015-07-06 16:15:49 -04:00
Stephen Kelly faec4e611d cmComputeTargetDepends: Change API to use cmGeneratorTarget. 2015-07-01 19:46:19 +02:00
Stephen Kelly 1335992c8f Remove CMAKE_USE_RELATIVE_PATHS variable.
The test for this variable was removed in commit v2.8.8~330^2~7 (complex:
Remove ancient unused ComplexRelativePaths test, 2011-12-23).

Commit v3.1.0-rc1~425^2~2 (backtrace: Convert to local paths in
IssueMessage, 2014-03-12) appears to have accidentally made some backtraces
print relative paths with the variable because conversions which used to be
done at configure time, before the variable had an effect are now potentially
done at generate time.

The documentation of the variable says not to use it, and the docs are wrong in
that the variable actually applies in per-directory scope.

The read of the variable makes it harder to split conversion methods from
cmLocalGenerator where they don't belong.  Remove it now.
2015-06-03 11:43:31 -04:00
Stephen Kelly 3b880a0741 cmLocalGenerator: Require a valid cmState::Snapshot in the ctor.
Refactor the local generator creation API to accept a
cmState::Snapshot.  Adjust MakeLocalGenerator to use the 'current'
snapshot in cases where there is no parent.  Create the snapshot
for subdirectories in cmMakefile::AddSubdirectory.

This means that snapshots are now created at the point of extending the tree,
as appropriate, and independently of the cmLocalGenerator and cmMakefile they
represent the state for.
2015-05-27 09:18:32 -04:00
Stephen Kelly c7b79aa16a cmGlobalGenerator: Require a cmake instance in ctor.
It is required anyway, so this makes it explicit.
2015-05-27 09:18:31 -04:00
Brad King 6fbd4cae0d Use cmSystemTools::GetCMakeCommand() to get path to cmake internally
This is much simpler than finding a way to lookup "CMAKE_COMMAND"
everywhere.
2015-05-20 11:20:42 -04:00
Stephen Kelly 34c9ee2ed7 cmLocalGenerator: Require a global generator in the constructor.
Port generator factory methods to pass it.
2015-05-14 20:36:27 +02:00
Stephen Kelly a48aebcb67 cmLocalGenerator: Require a parent in the constructor.
Pass the parent though cmGlobalGenerator::CreateLocalGenerator.

This will make it easy to initialize state scopes independent of
cmMakefile.
2015-04-28 07:50:52 +02:00
Brad King 5a5ef00106 Merge topic 'clean-up-cmMakefile'
8dc3a67c cmMakefile: Out-of-line the directory methods.
0f3c8cfa cmMakefile: Use method abstraction to access directories.
b288a997 cmMakefile: Rename SetStart* directory API to SetCurrent*.
932d53bc cmMakefile: Remove redundant method duplication.
32b8f03a cmMakefile: Port users of GetStart* methods to new names.
54d6a918 cmMakefile: Rename GetCurrent{Output,Binary}Directory.
55d80d0a cmMakefile: Rename GetCurrent{,Source}Directory.
b23cf06f cmake: Remove redundant start directories.
fcf246ac cmMakefile: Populate Home directories on initialize.
8878bea7 cmake: Initialize Home directories on cmake for find-package mode.
044dc815 Use the Home directories from the cmake class where intended.
d67e8f24 cmake: Fix directory used to find the cache
1ea085d1 cmMakefile: Initialize dir definitions early.
f034bb2f Remove redundant calls to MakeStartDirectoriesCurrent.
3a68c323 cmMakefile: Fix wrong parameter names.
2015-04-21 09:42:07 -04:00
Stephen Kelly 32b8f03acc cmMakefile: Port users of GetStart* methods to new names. 2015-04-21 00:15:20 +02:00
Stephen Kelly 54d6a9187f cmMakefile: Rename GetCurrent{Output,Binary}Directory.
Match names used in CMake code.
2015-04-21 00:12:52 +02:00
Stephen Kelly 55d80d0a85 cmMakefile: Rename GetCurrent{,Source}Directory.
Match the names used in cmake code.
2015-04-21 00:12:52 +02:00
Brad King 356c26ebdf cmSystemTools: Teach RunSingleCommand to separate stdout and stderr
Extend the RunSingleCommand signature to capture stdout and stderr
separately.  Allow both to be captured to the same std::string
to preserve existing behavior.  Update all call sites to do this
so that this refactoring does not introduce functional changes.
2015-04-20 15:47:50 -04:00
Brad King da65528c36 Merge topic 'stable-xcode-projects'
6693590f Xcode: Refine quoting rules for Strings
a6331eb8 Xcode: Let PrintComment decide if the comment is non-empty
6e8952c1 Xcode: PrintComment will prepend a whitespace itself before the comment
4bd2544b Xcode: Do not add whitespace after attribute group opening brace
5cb4c838 Xcode: Properly indent PBXFileReference and PBXBuildFile
a723427b Xcode: Remove extra space in PBXProject comment
2fe8bca5 Xcode: Add comment after root object
2e0e205e Xcode: Indent using tabs
7b68c8df Xcode: Sort Xcode objects by Id
2015-04-20 14:02:48 -04:00
Gregor Jasny a723427b64 Xcode: Remove extra space in PBXProject comment 2015-04-17 21:50:04 +02:00
Gregor Jasny 2fe8bca580 Xcode: Add comment after root object 2015-04-17 21:50:04 +02:00
Gregor Jasny 7b68c8df6b Xcode: Sort Xcode objects by Id
this patch series aims to minimize deltas between the CMake Xcode
generator and Xcode itself. It was started by the observation that
if one makes any change to the project within Xcode (e.g. to see
how a variable is called internally) the user cannot diff the CMake
project and the one stored by Xcode afterwards.

Xcode keeps the objects ordered by the object id.
Because cmake stores them into an unordered container
at creation time they must be sorted before writing the
pbxproj file.

I tested this series with Xcode 6.3 and Xcode 3.2. Both show a
reduced diff after this series was applied.
2015-04-17 21:49:05 +02:00
Stephen Kelly f081c5bddd cmState: Move CacheEntryType enum from cmCacheManager. 2015-04-13 11:44:16 -04:00
Stephen Kelly 14973054a2 Add API for cache loading, deleting and saving to the cmake class.
Migrate existing users of the CacheManager API to use the new
API.  The CacheManager will be going away soon.
2015-04-07 23:25:39 +02:00
Brad King 3347c5e4f9 Revert topic 'refactor-cache-api'
This topic was never tested without some follow-up commits.  The
GetCacheEntryValue API returns a pointer to memory freed on return.
It will have to be revised along with the rest of the original topic.
2015-04-07 17:15:04 -04:00
Stephen Kelly 1fe7f24c2b Add API for cache loading, deleting and saving to the cmake class.
Migrate existing users of the CacheManager API to use the new
API.  The CacheManager will be going away soon.
2015-04-06 17:58:55 +02:00
Sean James 078c732185 Xcode: Add file type for Metal shader files 2015-04-01 15:15:22 -04:00
Brad King b76b52c0b4 Xcode: Set ARCHS only when CMAKE_OSX_ARCHITECTURES is specified (#14736)
Teach the Xcode generator that ONLY_ACTIVE_ARCH=YES means to use ARCHS,
and that the default of ONLY_ACTIVE_ARCH=NO means to use NATIVE_ARCH and
ignore ARCHS.  In the latter case there is no reason to generate ARCHS.
2015-03-27 10:52:32 -04:00
Brad King 9e14a5dee2 cmGlobalXCodeGenerator: Simplify ARCHS list with cmJoin 2015-03-27 09:50:14 -04:00
Gregor Jasny 3714955b9c OS X: Add handling for XCTest bundles
An XCTest bundle is a CFBundle with a special product-type and bundle
extension.  For more information about XCTest visit the Mac Developer
library at:

  http://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/testing_with_xcode/

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
2015-03-23 09:12:18 -04:00
Stephen Kelly 0b945ea9a6 Genex: Allow COMPILE_LANGUAGE when processing compile definitions.
Issue an error if this is encountered by an IDE generator.
2015-03-09 20:49:16 +01:00
Gregor Jasny ce935ebe50 cmake: Teach --build to honor CMAKE_VERBOSE_MAKEFILE for Ninja
The Ninja build system does not support a in-file verbositiy switch.
Instead teach 'cmake --build' to extract the CMAKE_VERBOSE_MAKEFILE
setting and pass it as an optional '-v' argument to Ninja.  This can
serve as a reasonable fallback.

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
2015-02-26 09:51:11 -05:00
Gregor Jasny bf8f9c29e7 Xcode: Teach XCODE_ATTRIBUTE target properties about generator expressions
Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
2015-02-12 13:35:31 -05:00
Brad King d2fe4c4203 cmGlobalXCodeGenerator: Rename variable 'lang' => 'llang'
In CreateBuildSettings the variable holds the linker language.
Use a more distinctive variable name.
2015-02-06 11:46:03 -05:00
Brad King de63ff489d Xcode: Generate Intel Fortran compiler flags in project files 2015-02-06 11:45:28 -05:00
Brad King 9924486f8a Xcode: Refactor generation of per-language compiler flags 2015-02-06 11:44:41 -05:00
Brad King ab9fa54d48 Xcode: Switch to internal CMAKE_MAKE_PROGRAM lookup by generator (#15324)
The "cmakexbuild" wrapper is not needed for Xcode 4 and above, and the
path to it may change when CMake moves.  Avoid storing a specific path
to a build program in CMakeCache.txt and instead compute the value for
CMAKE_MAKE_PROGRAM on demand.  However, if a user does set the value
explicitly then honor it.

This does for Xcode what commit v3.0.0-rc1~260^2~4 (VS: Switch to
internal CMAKE_MAKE_PROGRAM lookup by generators, 2013-11-15) did for
Visual Studio generators.
2015-01-29 09:11:11 -05:00
Brad King 11e2e6cadf Xcode: Select make program at build time
Extend the change made in commit v3.0.0-rc1~260^2~16 (Teach
GenerateBuildCommand to find its own make program, 2013-11-13) to have
the Xcode generator pick between "xcodebuild" and CMake's own copy of
"cmakexbuild" at build time based on the version of Xcode.
2015-01-28 14:01:55 -05:00
Brad King e4055a6144 Xcode: Add internal API to find xcodebuild
Teach the Xcode generator to compute the location of this tool or the
cmakexbuild wrapper.  Add internal APIs to get the locations on demand.

Use the "cmakexbuild" wrapper for Xcode < 4, and "xcodebuild" for modern
Xcode.
2015-01-28 13:41:55 -05:00
Brad King 4970ac3d5f Merge topic 'xcode-target-sort'
9e0176e2 Xcode: Sort targets deterministically and with ALL_BUILD first (#15346)
c0ff542c Xcode: Fix early termination on per-config source file error
2015-01-20 09:19:55 -05:00
Ben Boeckel 9e0176e2b3 Xcode: Sort targets deterministically and with ALL_BUILD first (#15346)
The default target in XCode is the first one in the file.

In commit v3.1.0-rc1~286^2 (cmTarget: use a hash_map for cmTargets
typedef, 2014-06-10) the order of the targets stored in cmMakefile was
made non-deterministic instead of lexicographic.  Teach the Xcode
generator to do its own sorting to restore a predictable order.

While at it, place ALL_BUILD first (as is done in VS IDE generators)
explicitly in the comparison function so that it is the default target
even if other targets sort earlier lexicographically (e.g. "AAA").
2015-01-19 08:36:45 -05:00
Brad King c0ff542c58 Xcode: Fix early termination on per-config source file error
In commit v3.1.0-rc1~687^2~4 (cmTarget: Make the source files depend on
the config, 2014-02-13) an early termination case was added to the Xcode
generator.  Fix handling of this case to actually abort all the
generation steps.  Otherwise some of the later steps are attempted
without the preconditions normally established by earlier steps,
possibly leading to a crash.
2015-01-19 08:34:32 -05:00
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
Gregor Jasny 3a605693a5 Xcode: Call IsCFBundleOnApple to decide if bundle is being built
Narrow down the decision if a CFBundle is built to one place.
This is a preparation patch to add another target property
which, if set, will imply BUNDLE.  Having only one function
which will have to look at both properties helps to keep code
clean.

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
2014-12-17 11:26:10 -05:00
Brad King 8a4c6d2d2e Xcode: Fix rebuild with multiple custom command outputs (#15116)
The Xcode generator uses Makefiles under a run-script build-phase to
drive custom commands.  Fix the generated makefiles for custom commands
with multiple outputs to list all the outputs on the left hand side of
the build rule.  This is much simpler and more reliable than the old
multiple-output-pair infrastructure.
2014-12-05 09:52:09 -05:00
Ben Boeckel 48f78f5f9e Xcode: use a map to look up target pointers (#15201)
Use an efficient internal lookup to associate cmTarget and cmXCodeObject
instances.
2014-12-02 10:51:15 -05:00
Brad King e15a7075b5 Add an option for explicit BYPRODUCTS of custom commands (#14963)
A common idiom in CMake-based build systems is to have custom commands
that generate files not listed explicitly as outputs so that these
files do not have to be newer than the inputs.  The file modification
times of such "byproducts" are updated only when their content changes.
Then other build rules can depend on the byproducts explicitly so that
their dependents rebuild when the content of the original byproducts
really does change.

This "undeclared byproduct" approach is necessary for Makefile, VS, and
Xcode build tools because if a byproduct were listed as an output of a
rule then the rule would always rerun when the input is newer than the
byproduct but the byproduct may never be updated.

Ninja solves this problem by offering a 'restat' feature to check
whether an output was really modified after running a rule and tracking
the fact that it is up to date separately from its timestamp.  However,
Ninja also stats all dependencies up front and will only restat files
that are listed as outputs of rules with the 'restat' option enabled.
Therefore an undeclared byproduct that does not exist at the start of
the build will be considered missing and the build will fail even if
other dependencies would cause the byproduct to be available before its
dependents build.

CMake works around this limitation by adding 'phony' build rules for
custom command dependencies in the build tree that do not have any
explicit specification of what produces them.  This is not optimal
because it prevents Ninja from reporting an error when an input to a
rule really is missing.  A better approach is to allow projects to
explicitly specify the byproducts of their custom commands so that no
phony rules are needed for them.  In order to work with the non-Ninja
generators, the byproducts must be known separately from the outputs.

Add a new "BYPRODUCTS" option to the add_custom_command and
add_custom_target commands to specify byproducts explicitly.  Teach the
Ninja generator to specify byproducts as outputs of the custom commands.
In the case of POST_BUILD, PRE_LINK, and PRE_BUILD events on targets
that link, the byproducts must be specified as outputs of the link rule
that runs the commands.  Activate 'restat' for such rules so that Ninja
knows it needs to check the byproducts, but not for link rules that have
no byproducts.
2014-11-14 16:16:00 -05:00
Brad King 820e95d000 Xcode: Inherit global settings in per-target WARNING_CFLAGS (#15224)
Allow projects to use CMAKE_CODE_ATTRIBUTE_WARNING_CFLAGS to add their
own warning flags and have them used by the targets.
2014-10-31 11:29:53 -04:00
Brad King 03b7b6cda1 cmGlobalGenerator: Call SetGeneratorToolset even for empty toolset
Move handling of an empty toolset name into the implementation of the
method.  This simplifies the VS 10 implementation of default toolset
selection because it has one code path that is always called.
2014-09-05 13:41:54 -04:00
Brad King f7c44eac4c Merge topic 'xcode-duplicate-file-refs'
d73f8828 Merge branch 'backport-xcode-duplicate-file-refs' into xcode-duplicate-file-refs
cf92fe2d Xcode: Generate per-target file references (#15111)
e7114226 Xcode: Generate per-target file references (#15111)
2014-09-04 09:48:27 -04:00