[gcc r12-6109] Darwin: Define OBJECT_FORMAT_MACHO.

[Iain D Sandoe]

https://gcc.gnu.org/g:9a4a29eaf23a87debb7f1761b36fead545282dfa

commit r12-6109-g9a4a29eaf23a87debb7f1761b36fead545282dfa
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Wed Dec 22 14:00:25 2021 +0000

    Darwin: Define OBJECT_FORMAT_MACHO.
    
    There are places that we need to make different codegen depending
    on the object format rather than on the arch.  We already have
    definitions for ELF, COFF etc. this adds one for MACHO.
    
    Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
    
    gcc/ChangeLog:
    
            * config/darwin.h (OBJECT_FORMAT_MACHO): New.

Diff:
---
 gcc/config/darwin.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h
index 75b688ebf9e..c175eade887 100644
--- a/gcc/config/darwin.h
+++ b/gcc/config/darwin.h
@@ -43,6 +43,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define DARWIN_X86 0
 #define DARWIN_PPC 0
 
+#define OBJECT_FORMAT_MACHO 1
+
 /* Suppress g++ attempt to link in the math library automatically. */
 #define MATH_LIBRARY ""