The Meson script is not always in $scriptdir/../../ -- for instance if
installed with pip on Windows, the scriptdir is in:
C:/Python35/Lib/site-packages/meson-0.33.0.dev1-py3.5.egg/mesonbuild/scripts
and the meson.py script is in:
C:/Python35/Scripts
So, let's save the path available as Environment().meson_script_file
into the coredata.dat private file and use that to invoke Meson when
doing regen.
Also, let's fetch the backend that was used from the coredata too
instead of hard-coding vs2010.
Both these were causing a hard failure while doing regen with msbuild or
visual studio.
Do not modify the wrap command argument from the calling function.
Appending the valgrind arguments to the wrap list argument will cause all
the valgrind arguments to cumulate from all the tests to the wrapper
command itself.
The extra arguments are typically used to specified the location of
installed API references that gtk-doc can use to create cross links
for symbols.
Fixes#555
When a CustomTarget is run with a command that is an executable built
by the project which also has a DLL built in the same project as a
dependency, the EXE can't run on Windows because the DLL can't be found.
On UNIX-like systems, we set the RPATH using the linker so these
dependencies can be found, but on Windows the only way is to set the
PATH environment variable.
The same problem exists for tests, so we reuse that infrastructure by
creating a new meson_exe.py script that can be used as a wrapper to run
CustomTarget commands on Windows. This can later also be extended to add
support for setting an environment while calling the command needed to
generate a CustomTarget: https://github.com/mesonbuild/meson/issues/266