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
Starting with Xcode 8 the SDK folder also contains an unversioned
entry:
$ ls -l /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs
drwxr-xr-x 5 root wheel 170 Mar 4 2018 MacOSX.sdk
lrwxr-xr-x 1 root wheel 10 Sep 16 20:49 MacOSX10.12.sdk -> MacOSX.sdk
If this unversioned path is used CMake cannot detect the SDK
version. To work around the problem we always invoke the code path
that translates short SDK names like "macosx10.12" into a path.
That way we always end up with a versioned SDK path in
_CMAKE_OSX_SYSROOT_PATH which is later used to determine the version.
Closes: #16323
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").
eb8cd356 Tests: Split Fortran module testing into separate FortranModules test
a41c8724 Tests: Check if Fortran compiler supports F90
1ec5097d Tests: Use more generic variables in Fortran test
d7bd2efb Tests: Remove trailing line from Fortran/External
e22d30e2 server-mode: Allow for sending signals
cc576c2c server-mode: Pass server into cmServerProtocol
277ffa28 server-mode: Move constants for server mode into its own file
All Fortran sources need to be preprocessed before any source may be
compiled so that module dependencies can be (later) extracted. Factor
out an explicit preprocessing step preceding compilation. Use Ninja
depfile dependencies on the preprocessing step and then compile the
already-preprocessed source with a separate build statement that depends
explicitly only on the preprocessor output. Later we will insert
dynamic discovery of module dependencies between these steps.
Create an internal `cmake -E cmake_ninja_dyndep` tool to read the "ddi"
files generated by `cmake -E cmake_ninja_depends` from all sources in a
target and generate a ninja dyndep file that tells Ninja about Fortran
module dependencies within the target and on target dependencies.
Create an internal `cmake -E cmake_ninja_depends` tool to scan an
already-preprocessed Fortran translation unit for modules that it
provides or requires. Save the information in a "ddi" file with a
CMake-private format for intermediate dynamic dependency information.
This file may the be loaded by another tool to be added later.
Kitware maintains a branch of Ninja with support for dynamically
discovered dependencies (dyndep) that has not yet been accepted
upstream. Add an internal API to check whether the Ninja version in use
for the build supports this feature.
Brad King
Daniel Pfeifer
Roman Wüger
Kitware Robot
Gregor Jasny
Tatsuyuki Ishi
Domen Vrankar
Jamie Snape
Clinton Stimpson