The latter matches with CMAKE_GENERATOR_TOOLSET better.

Add source file properties to control Xcode file type attributes:

  XCODE_EXPLICIT_FILE_TYPE   => explicitFileType
  XCODE_LAST_KNOWN_FILE_TYPE => lastKnownFileType

Add a RunCMake.XcodeProject test to verify generated project content.

Choose the attribute name and file type and send them through a single
attribute generation code path.  Compute the file extension only when
needed.  Leave the file type selection logic indented in a block so it
can be made conditional later.

Disallow the use of config-specific source files with
the Visual Studio and Xcode generators. They don't have
any way to represent the condition currently.

Use the same common-config API in cmQtAutoGenerators. While
it accepts config-specific files, it doesn't have to support
multiple configurations yet.

Loop over the configs in cmTargetTraceDependencies
and cmGlobalGenerator::WriteSummary and consume all source
files.

Loop over the configs in cmComputeTargetDepends and compute the
object library dependencies for each config.

Add a ComputeObjectMapping method to compute the object
names.  It takes mapping to populate as an out-parameter so
that it can be extended in the future with parameters
relevant to generator expression evaluation.

Remove the supporting cmGeneratorTarget::AddObject method. It is
no longer needed as the container member is populated directly.

The ComputeObjectMapping method is called whenever objects are
requested from the cmGeneratorTarget.  Because the Xcode generator
makes no such request, explicitly invoke the method from that
generator so that the logic of checking for bad sources in object
libraries is executed.

In a follow-up, the UseObjectLibraries usage may be replaced by a
true generator expression evaluator for TARGET_OBJECTS. That
will require generators to use cmGeneratorTarget::GetExternalObjects
which is not currently the case for Xcode and VS generators.

Remove use of UseObjectLibraries from Makefile and Ninja generators. It
is not needed now because those generators use GetExternalObjects
which already contains the objects from object libraries.

The VS10 generator calls both the UseObjectLibraries and the GetExternalObjects
methods. Ensure that duplicates are not created by skipping objects
from object libraries in handling of GetExternalObjects.

Similarly, fix VS6, VS7 and Xcode object handling by skipping
external objects from OBJECT_LIBRARY usage as appropriate.

The error message in the BadSourceExpression1 test is now reported
by the generator expression evaluator, so it has different text.

Avoid calling it too early when cmGeneratorTarget instances don't
yet exist.

Continue to call GetOrCreateSource where necessary to create
cmSourceFile objects which have the GENERATED attribute set.

Add a new AddSource method for future use.

Implement it in terms of the ComputeObjectFilenames virtual method
on the local generators.

Remove the reimplementation from the global generators which are
now all functionally identical.

Implement it in the local generators and use it in the global
generators.

Some of them will be used with other APIs which require value_type
to be cmSourceFile const*.

Make it public for future external calls.

Until now the cmCustomCommandGenerator was used only to compute the
command lines of a custom command.  Generalize it to get the comment,
working directory, dependencies, and outputs of custom commands.  Update
use in all generators to support this.

Make the multiple output pair map more local.  Generate it where we
have the current configuration available.

Ben Boeckel authored Feb 10, 2014 and Brad King committed Mar 08, 2014

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.

Ben Boeckel authored Feb 03, 2014 and Brad King committed Mar 08, 2014

It gets turned into a string anyways, so pass them in.

When using link_directories() and including CMAKE_CFG_INTDIR,
one can end up with duplicate RPATHs in the binary which
install_name_tool cannot fix without corrupting the binary.
Also, the cmake_install.cmake file has been fixed to correctly
handle these generator specific variables.

Return a pointer instead of a reference.  This allows making the accessor
const with the least impact.

Ruslan Baratov authored Jan 16, 2014 and Brad King committed Jan 16, 2014

Images and xib files must have 'lastKnownFileType' attribute to be
displayed correctly. If xib file has attribute 'explicitFileType' it is
displayed as raw xml. If static image has attribute 'explicitFileType'
it is displayed as question mark on storyboard.

Ruslan Baratov authored Jan 16, 2014 and Brad King committed Jan 16, 2014

Variable 'ext' already checked for equality to "xib" so remove the
branch that will never be executed.

In a future patch, this will also be populated with extra
sources from the linked dependencies.

These methods and others will be able to get a config parameter
later to implement the INTERFACE_SOURCES feature.

Ruslan Baratov authored Jan 07, 2014 and Brad King committed Jan 07, 2014

Since commit 56831461 (Xcode: Use explicitFileType to mark source types,
2013-04-16) the Xcode generator prefers to use explicitFileType to tell
Xcode about each source file type.  This works better than
lastKnownFileType for some file types, but not for "file.storyboard".

If storyboard file has attribute 'explicitFileType' it is displayed
incorrectly (as raw xml).  Switch it back to 'lastKnownFileType'.

Ruslan Baratov authored Jan 07, 2014 and Brad King committed Jan 07, 2014

Since commit 56831461 (Xcode: Use explicitFileType to mark source types,
2013-04-16) the Xcode generator prefers to use explicitFileType to tell
Xcode about each source file type.  This works better than
lastKnownFileType for some file types, but not for "file.storyboard".

If storyboard file has attribute 'explicitFileType' it is displayed
incorrectly (as raw xml).  Switch it back to 'lastKnownFileType'.

There is no need to allow EXCLUDE_* properties, because an
INTERFACE_LIBRARY has no direct build output.

IMPORTED_LINK_INTERFACE_LANGUAGES are relevant only to static
libraries.

VERSION is relevant only to the filename of direct build outputs,
which INTERFACE_LIBRARY does not have.

Stephan Tolksdorf authored Dec 02, 2013 and Brad King committed Dec 02, 2013

Fix logic introduced by commit eeeeca10 (XCode: Support target folders
on XCode, 2011-02-20) to avoid duplicate subfolders.  The problem was
that no slash was appended to the curr_tgt_folder string on the it !=
this->TargetGroup.end() path.

Add a cmGlobalGenerator::SelectMakeProgram method to select a
caller-provided make program, the CMAKE_MAKE_PROGRAM cache entry, or a
generator-provided default.  Call it from all implementations of the
GenerateBuildCommand method with the corresponding generator's default,
if any.