Under MSYS2, G_NORETURN is expanded to '[[noreturn]]'.
Simpler to use the same definition everywhere, unifying
the code style.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
---
 include/sysemu/os-win32.h | 2 +-
 tests/migration/stress.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/sysemu/os-win32.h b/include/sysemu/os-win32.h
index f8e300d302..fb076a6eb9 100644
--- a/include/sysemu/os-win32.h
+++ b/include/sysemu/os-win32.h
@@ -67,7 +67,7 @@ extern "C" {
  * which gets linked automatically.
  */
 int __mingw_setjmp(jmp_buf);
-void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int);
+G_NORETURN void __mingw_longjmp(jmp_buf, int);
 #define setjmp(env) __mingw_setjmp(env)
 #define longjmp(env, val) __mingw_longjmp(env, val)
 #elif defined(_WIN64)
diff --git a/tests/migration/stress.c b/tests/migration/stress.c
index 88acf8dc25..54a95c07f1 100644
--- a/tests/migration/stress.c
+++ b/tests/migration/stress.c
@@ -36,7 +36,7 @@ static int gettid(void)
 }
 #endif
 
-static __attribute__((noreturn)) void exit_failure(void)
+static G_NORETURN void exit_failure(void)
 {
     if (getpid() == 1) {
         sync();
-- 
2.38.1

On 6/5/23 10:56, Philippe Mathieu-Daudé wrote:
> -static __attribute__((noreturn)) void exit_failure(void)
> +static G_NORETURN void exit_failure(void)

I think attr-spec-seq ('[[noreturn]]') has to come before specifiers-and-qualifiers (i.e. 
'static').

To me this means that G_NORETURN being redefined from __attribute__((noreturn)) to 
[[noreturn]] was a glib bug, since it has a different syntax.

Therefore we should simply avoid G_NORETURN entirely.  At some point we should be able to 
update -to --std=c23, at which point we use [[noreturn]] directly and not G_NORETURN anyway.


r~