Joseph Myers <jos...@codesourcery.com> wrote:

> This patch adds support for the C2x [[]] attribute syntax to the C
> front end.  

>       gcc.dg/gnu2x-attrs-1.c: New tests.

This test fails on targets without symbol alias support, but it would
be most unfortunate to skip it entirely with the usual dg-requires.

In this instance, I propose to expect the error for Darwin as per the patch
below, but open to other suggestions, if you prefer something different.

OK / something else?

thanks
Iain

gcc/testsuite/ChangeLog:

2019-11-16  Iain Sandoe  <i...@sandoe.co.uk>

        * gcc.dg/gnu2x-attrs-1.c: Expect the alias case to produce
        an error on Darwin platforms.


diff --git a/gcc/testsuite/gcc.dg/gnu2x-attrs-1.c 
b/gcc/testsuite/gcc.dg/gnu2x-attrs-1.c
index df22fb3..fe7e95b 100644
--- a/gcc/testsuite/gcc.dg/gnu2x-attrs-1.c
+++ b/gcc/testsuite/gcc.dg/gnu2x-attrs-1.c
@@ -5,7 +5,7 @@
 
 void f (void) {};
 
-[[gnu::alias("f")]] void g (void);
+[[gnu::alias("f")]] void g (void); /* { dg-error "only weak" *-*-darwin* } */
 
 void [[gnu::alias("f")]] h (void); /* { dg-warning "ignored" } */
 /* { dg-message "that appertains to a type-specifier" "appertains" { target 
*-*-* } .-1 } */

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