It's nice to be able to build from source control HEAD, and
especially for packages under than Chocolate Doom itself. As a start,
define "latest" variants for all the SDL2 packages.
Slim down the library as much as possible, and link directly against
libpng rather than searching for it at runtime (so that the OS X
package building code will find libpng correctly).
This is important for pkgdef files like SDL2_mixer which recursively
invoke chocpkg to check if a soft dependent package is installed. In
this case it's important to explicitly prefix the package type to
pass it through to the recursed instance.
Previously a particular package could only ever be installed to target
or native. Instead, allow any package to be installed to either, with
target being the default. Native packages can only ever have native
dependencies, but target packages can depend on native ones in order to
install tools which they need for their build process.
The only place this is needed is when determining the directory name
that the tar file will be extracted to. This can be done by examining
the .tar file name without needing to know the version itself.
These modules encapsulate individual pieces of functionality and make
the code far more maintainable. This is a pretty big refactoring but
overall a big win.
This conveniently allows a whole set of packages to be installed from
a single command, without needing an actual package to be built that
depends on them all.
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.
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.
