Hi,
Some system headers apply visibility attributes to Objective-C
@interface declarations. Those are “default”, but still need to be
accepted.
tested across the Darwin patch and on x86_64-linux-gnu,
pushed to master,
thanks
Iain
-----
This passes visibility through without warning (so that, for example,
__attribute__((__visibility("default"))) does not result in any
diagnostic).
gcc/objc/ChangeLog:
* objc-act.c (start_class): Accept visibility attributes
without warning.
---
gcc/objc/objc-act.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/gcc/objc/objc-act.c b/gcc/objc/objc-act.c
index 26cdeddfc5a..68d829fd773 100644
--- a/gcc/objc/objc-act.c
+++ b/gcc/objc/objc-act.c
@@ -7013,12 +7013,14 @@ start_class (enum tree_code code, tree class_name, tree
super_name,
tree name = TREE_PURPOSE (attribute);
/* TODO: Document what the objc_exception attribute is/does. */
- /* We handle the 'deprecated' and (undocumented) 'objc_exception'
- attributes. */
+ /* We handle the 'deprecated', 'visibility' and (undocumented)
+ 'objc_exception' attributes. */
if (is_attribute_p ("deprecated", name))
TREE_DEPRECATED (klass) = 1;
else if (is_attribute_p ("objc_exception", name))
CLASS_HAS_EXCEPTION_ATTR (klass) = 1;
+ else if (is_attribute_p ("visibility", name))
+ ;
else
/* Warn about and ignore all others for now, but store them. */
warning (OPT_Wattributes, "%qE attribute directive ignored",
name);
--
2.24.1
