[PATCH] Recognize and ignore __alias__ and __visibility__

[Pavel Roskin <proski@gnu.org>]

From: Pavel Roskin <proski@gnu.org>

They are equivalent to "alias" and "visibility" except that gcc won't
complain about them in ANSI programs.

Signed-off-by: Pavel Roskin <proski@gnu.org>
---

 ident-list.h |    4 ++--
 parse.c      |    4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ident-list.h b/ident-list.h
index 95bb96a..ecdce6d 100644
--- a/ident-list.h
+++ b/ident-list.h
@@ -56,8 +56,8 @@ IDENT(__const); IDENT(__const__); IDENT(
 IDENT(__noreturn__); IDENT(regparm); IDENT(weak); IDENT(__weak__);
 IDENT(__no_instrument_function__); IDENT(no_instrument_function);
 IDENT(__sentinel__); IDENT(sentinel);
-IDENT(alias); IDENT(pure); IDENT(always_inline);
-IDENT(syscall_linkage); IDENT(visibility);
+IDENT(alias); IDENT(__alias__); IDENT(pure); IDENT(always_inline);
+IDENT(syscall_linkage); IDENT(visibility); IDENT(__visibility__);
 IDENT(bitwise); IDENT(__bitwise__);
 IDENT(model); IDENT(__model__);
 IDENT(__format_arg__);
diff --git a/parse.c b/parse.c
index c536ec2..1c9aab8 100644
--- a/parse.c
+++ b/parse.c
@@ -530,6 +530,8 @@ static const char * handle_attribute(str
 		return NULL;
 	if (attribute == &alias_ident)
 		return NULL;
+	if (attribute == &__alias___ident)
+		return NULL;
 	if (attribute == &pure_ident ||
 	    attribute == &__pure___ident)
 		return NULL;
@@ -539,6 +541,8 @@ static const char * handle_attribute(str
 		return NULL;
 	if (attribute == &visibility_ident)
 		return NULL;
+	if (attribute == &__visibility___ident)
+		return NULL;
 	if (attribute == &deprecated_ident ||
 	    attribute == &__deprecated___ident)
 		return NULL;