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[Patch, Darwin] Make the darwin port a little more friendly to X and Native X cases
- From: Iain Sandoe <developer at sandoe-acoustics dot co dot uk>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Cc: Mike Stump <mrs at gcc dot gnu dot org>
- Date: Wed, 7 Sep 2011 12:30:21 +0100
- Subject: [Patch, Darwin] Make the darwin port a little more friendly to X and Native X cases
I found myself building a lot of X's and native X's recently - linux -
> darwin; i686-darwin -> ppc-darwin ; i686-darwin9 -> x86_64-darwin10.
Amongst other issues (primarily wrong auto-host.h decisions) there is
an issue that the target headers (and some GCC code) make use of
__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ which does not get set
(IMHO) sensibly for CROSS_DIRECTORY_STRUCTURE.
In fact, as things stand, darwin-driver.c pretty much ignores any
attempt to control the value for that case.
---
So I did the following;
when CROSS_DIRECTORY_STRUCTURE is set - we pick a default for the osx-
version-min that is set by the target header.
we also allow the user to override this with MACOSX_DEPLOYMENT_TARGET.
Attached is a tidied version (which is currently bootstrapping as a
check) of the one I have been using.
WDYT?
ok for trunk (after a re-check)?
gcc:
*config/darwin-driver.c (darwin_find_version_from_kernel): New
routine cut from...
... (darwin_default_min_version): amended to provide defaults for the
cross
directory case. (darwin_driver_init): call darwin_default_min_version
unconditionally.
* config/darwin.h (DEF_MIN_OSX_VERSION): New.
* config/darwin9.h: Likewise.
* config/darwin10.h: Likewise.
* config/rs6000/darwin7.h: Likewise.
Attachment:
178631-cross-build.txt
Description: Text document