r274015 - in /branches/gcc-9-branch/gcc: Change...

[iains@gcc.gnu.org]

Author: iains
Date: Fri Aug  2 14:34:02 2019
New Revision: 274015

URL: https://gcc.gnu.org/viewcvs?rev=274015&root=gcc&view=rev
Log:
darwin, objc, backport fix for objc header paths

Don't try to prepend a sysroot for the gnu-objc headers, which
are compiler-relative.

Darwin is able to use two runtimes for objective-c; the
default is its native "NeXT" runtime, but also it can build
code using the "gnu-runtime". In order to do this, we have to
be able to find the gnu-runtime headers (which are installed
into the compiler's tree).

The process to do this is erroneously prepending the sysroot
to this when a sysroot is in force. The gnu-runtime headers have
never been installed in a Darwin (macOS) SDK so we must make
sure that they are found local to the compiler.

gcc/

2019-08-02  Iain Sandoe  <iain@sandoe.co.uk>

	Backport from mainline
	2019-05-18  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin-c.c (darwin_register_objc_includes): Do not
	prepend the sysroot when building gnu-runtime header search
	paths.


Modified:
    branches/gcc-9-branch/gcc/ChangeLog
    branches/gcc-9-branch/gcc/config/darwin-c.c