Not sure what the practical upshot of this is yet, but it at least
allows it to build successfully. I've been unable to get it to build
with DirectX support enabled yet because the compiler complains about
missing header definitions for LPDIRECTINPUTDEVICE8 and related
functions.
This is a tricky package to support, since the tar file is improperly
structured and it is not an autotools package. Refactor slightly and
add IS_TAR_BOMB option for this kind of use case.
Now that buildenv.sh is mostly just for setting BUILD_HOST, include
it early in the chocpkg initialization/startup. Set PKG_CONFIG_LIBDIR
as part of configure_for_package - this needs to be set before we
invoke pkg-config to check if the package is installed on the system
already, otherwise we can pick up a system package rather than the
one for the target architecture.
The 'install' command does nothing if the package is detected to be
already installed, but there are circumstances where we will want to
trigger a rebuild and reinstall explicitly. Separate out into two
commands, one of which is a superset of the other.
We need to distinguish between tools we compile to use as part of the
build process, and things we build for the eventual target. Install
these into separate install directories; for now, pkg-config is the
only one of these.
