Python 2.7.x has *much* better cross-compiling support so that it's now
actually possible to properly cross-compile Python during the bootstrap.
Before, it would just depend a lot on luck and the build host used, now
it even cross-compiles on OS X.
This means it's now possible to build a working bootstrap image on OS X!
:)
* This stage builds the gcc packages to get the shared syslibs, which
only requires the Haiku glue code.
* Add separate declaration section for stage0 packages to
HaikuPortsCross repository files.
* For the bootstrap_stage0 platform, fall back to the gcc headers
provided by the cross-compiler.
* There was a version mismatch between HaikuPorts gcc_bootstrap recipe
and build/jam/repositories/HaikuPortsCross/arm which prevented
building @bootstrap-raw for ARM. Thanks Ingo for helping out!
* Ditto for ppc, x86, x86_64.
Signed-off-by: Jérôme Duval <jerome.duval@gmail.com>