Create GL dependency objects via a factory function, so they can be the
correct type of object (e.g. a PkgConfigDependency when it's found by
pkg-config)
Factor out method: kwarg processing, so it can be used by the factory before
the dependency object is constructed
This code isn't used as present: the actual objects we use and which get
pickled are either static subclasses of ConfigToolDependency, or special
purpos subclasses of Dependency which get attributes copied from an instance
of a dynamic subclass of ConfigToolDependency which is then discarded.
This is fortunate, as it doesn't work: the pickled reduction is a call to
the dynamic subclass's constructor, but the superclass constructors rely on
the environment object being fully initialized, which hasn't happened yet
during unpickling.
Avoid this by having a pickled reduction which is just a call to create the
dynamic subclass object, and relying on the default __setstate__ behavior to
unpickle the object's __dict__.
Since this is only consulted while constructing the Dependency object, it's
result doesn't depend on the instance (and it would make no sense if it did)
The output may be a binary data stream, not subject to any locale
encoding. This avoids any encoding errors that might arise as a result.
Also fixes github issue #2868.
This is important so people can not trick Meson to select a
subproject_dir that is not in the project's source directory.
It also ensures a string is used for the path.
They now are published by the D Language Foundation, and not Digital
Mars. Therefore, their signature has changed slightly.
(We can not check for 'DMD', because that string appears in every
compiler version output to denote the frontend version used by the
compiler).
The previous change disallowed any subdirectories for subproject dirs,
and therefore broke a couple of projects making use of that.
This change still prevents people from setting subproject dirs that are
not in the project's source tree, while allowing to specify any path
within the project's directory again.
Resolves: #2719
Because FreeBSD's llvm-config adds -l/usr/lib/libexecinfo.so when asked
for system-libs, which is bogus. We'll remove the leading -l from any
argument that also ends with .so.
Instead of looking for an objc compiler. Fixes objc++ tests on
DragonFlyBSD (which has an objc but not an objc++ compiler)
Really though, the objc and objc++ tests need to be untangled so that
the objc tests can run even if an objc++ compiler is unavilable.