Issue: #15441

Gusts Kaksis authored Jan 18, 2017 and Brad King committed Feb 28, 2017

Issue: #15441

Gregor Jasny authored Feb 18, 2017 and Brad King committed Feb 22, 2017

Always use the dependency tracker Makefile to ensure targets that
depend on object libraries are up-to-date.  For all other target
types we use the hack only for Xcode < 5.

Fixes: #16615

Xcode seems to have troubles to track target dependecies to
object files. This may lead to stale targets as reported in
issue #16615.

As a work-around the pre-Xcode 5 dependecy tracker hack with
post-build make files is extended to also take object libraries
into account.

Gregor Jasny authored Dec 26, 2016 and Brad King committed Jan 31, 2017

Closes: #16432

Gregor Jasny authored Jan 15, 2017 and Brad King committed Jan 20, 2017

When building with multiple SDKs within one project Xcode requires
the usage of ${EFFECTIVE_PLATFORM_NAME} to put temporary and build
outout into separate directories. For example an iOS device and
simulator build use two different SDKs (iphoneos and iphonesimulator).

In the past cmake tries to detect embedded toolchains that could
possibly use simulators and emitted EFFECTIVE_PLATFORM_NAME (EPN)
at the proper locations. In #16253 Mark noticed that if he
uses macosx and iphoneos in combination the necessary EPN is not
emitted. This is because CMake by default assumes macosx SDK which
does not trigger EPN emission.

The fist naive approach - enabling EPN unconditionally revealed that
then the EPN leaks into generator expressions like $<TARGET_FILE:xxx>
which might be a regression and thus is unacceptable.

The next approach was to add an CMake property to enable EPN emission
unconditionally. This solved the reported problem.

But the EPN leakage also happened for the embedded toolchains already
without anyone noticing. So the control property was turned into a
tri-state one:

 * No definition: EPN is activated for embedded toolchains like before
 * ON: EPN is always emitted
 * OFF: EPN is never emitted

That approach gives the user the chance to disable EPN for embedded
toolchains and restores generator expression functionality for those.

Closes: #16253

We now populate the per-language flags in addition to the header
search paths stored in HEADER_SEARCH_PATHS. This preserves include
paths for GNU assembly files (#16449) and also provides
SYSTEM include semantics.

Closes: #15687

Gregor Jasny authored Nov 23, 2016 and Brad King committed Nov 28, 2016

Revert commit v3.7.0-rc1~266^2 (Xcode: Obey SYSTEM keyword for includes,
2015-08-31).  It worked for C, C++, and Swift but not for GNU Assembly
files for which Xcode has no property to set flags.

Closes: #16449

Zsolt Parragi authored Oct 25, 2016 and Brad King committed Oct 28, 2016

This allows users to specify different genex-based compile flags for
each file in a target, e.g. compiling just a single file with `Od/Ox` in
release builds on Visual Studio.

Revise its signature to return `bool` so that it can fail and abort
configuration early.

Port dependent code to the change.

Gregor Jasny authored Aug 30, 2016 and Brad King committed Oct 17, 2016

Add a `cmGeneratorTarget::GetEffectiveFolderName` helper to abstract
lookup of the `FOLDER` property in combination with checking for
generator support of folders.

Visual Studio provides toolchains that are themselves built for 32-bit
or 64-bit host architectures.  By default it uses the 32-bit tools, but
it can be told to prefer the 64-bit tools on 64-bit hosts.  Extend the
`CMAKE_GENERATOR_TOOLSET` specification to provide a way to request
use of the 64-bit host tools.

Closes: #15622

Avoid violations of Interface Segregation Principle.  These two calls
now simply call different methods.

Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and lin...

Create a new CMAKE_Swift_LANGUAGE_VERSION variable to specify the
SWIFT_VERSION attribute in a generated Xcode project.  Ideally this
would be a `<LANG>_STANDARD` property but since Swift support is
very minimal we should reserve that property for more complete
treatment later.

Issue: #16326

The `.pbxproj` file must now specify a `SWIFT_VERSION` value.
Set it to the legacy value of "2.3" for now.  Later this can
be made configurable (e.g. to "3.0").

It is unused since commit v3.4.0-rc1~492^2~3 (Remove
CMAKE_USE_RELATIVE_PATHS variable., 2015-06-01).

CMake used to put all header search paths into HEADER_SEARCH_PATHS
attribute. Unfortunately this attribute does not support to declare
a search path as a system include.

As a hack one could add a -isystem /path to the cflags but then include
ordering is not deterministic. A better approach was chosen with this
patch by not filling HEADER_SEARCH_PATHS at all and to populate
the C, C++, and Fortran flags directly. The include paths used by
Xcode should be now identical to the ones used by Unix Makefiles and
Ninja generator.

Replace use of cmsys::auto_ptr with a CM_AUTO_PTR macro that maps to
our own implementation adopted from the KWSys auto_ptr implementation.
Later we may be able to map CM_AUTO_PTR to std::auto_ptr on compilers
that do not warn about it.

Automate the client site conversions:

    git grep -l auto_ptr -- Source/ | grep -v Source/kwsys/ | xargs sed -i \
      's|cmsys::auto_ptr|CM_AUTO_PTR|;s|cmsys/auto_ptr.hxx|cm_auto_ptr.hxx|'

Bekenn authored Jun 03, 2016 and Brad King committed Jun 17, 2016

This adds values to the ATTRIBUTES list in PBXBuildFile settings.

Mostly automated:

git grep -l '.c_str() <<' | xargs sed -i 's|\.c_str() <<| <<|g'