[PATCH] modula-2, libm2min: Declare abort and exit as expected.

[Iain Sandoe <iains.gcc@gmail.com>]

Tested with a build on x86_64-darwin21, the build warnings are gone and
the build completed as normal.
OK for master?
thanks
Iain

--- 8< ---

The build is currently emitting a warning that abort() is declared differently
from the built-in.  This updates the declaration to match expectations.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

gcc/m2/ChangeLog:

	* gm2-libs-min/libc.c (abort): Update declaration to match the
	expected form, add no-return attribute.
	(exit): Add no-return attribute.
---
 gcc/m2/gm2-libs-min/libc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/m2/gm2-libs-min/libc.c b/gcc/m2/gm2-libs-min/libc.c
index b39bfffb65c..8cddb5dd7b4 100644
--- a/gcc/m2/gm2-libs-min/libc.c
+++ b/gcc/m2/gm2-libs-min/libc.c
@@ -24,10 +24,10 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-void abort (int);
-void exit (int);
+extern void abort (void)  __attribute__ ((__noreturn__));
+extern void exit (int) __attribute__ ((__noreturn__));
 
-void abort (int i)
+void abort (void)
 {
   while (1)
     ;
-- 
2.37.1 (Apple Git-137.1)