Running the build step of test '127 custom target directory install'
again, using the VS backend, causes 'docgen.py' to try to create the
target directory again (which fails with a FileNotFound exception).
I'm guessing that perhaps this is a shortcoming of the VS backend that
it doesn't correctly give this target a dependency on the directory.
I'm not sure that this test is actually valid meson: the reference
manual says custom_target(output:) should be a list of files, and not a
directory, as is this case here.
We automatically convert that to use sys.executable now which is
always available on all platforms (because we're running with it).
On some platforms like NetBSD, `python` doesn't exist, and you must
use a specific python version. On most other distros, `python` is
Python 2, and we don't want to depend on that.
Closes https://github.com/mesonbuild/meson/issues/695
All these scripts were being used as `find_program()`, so we do not
lose any test coverage by doing this.
This is useful in many cases where the list of files cannot be known in
advance and is just dumped inside a directory. For example when
generating documentation with doxygen and other tools that we don't have
built-in support for.
Includes a test for the same.
Closes#893
Jon Turney
Jussi Pakkanen
Nirbheek Chauhan