[gobject-introspection] scanner: Recognize __signed

[Colin Walters <walters src gnome org>]

commit 844b1bcace90ff0b6f88991a50e0788fa8a92772
Author: Colin Walters <walters verbum org>
Date:   Sun Jul 26 18:00:24 2015 -0400

    scanner: Recognize __signed
    
    https://bugzilla.gnome.org/show_bug.cgi?id=752904

 giscanner/scannerlexer.l |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/giscanner/scannerlexer.l b/giscanner/scannerlexer.l
index 835b92c..1ec16b4 100644
--- a/giscanner/scannerlexer.l
+++ b/giscanner/scannerlexer.l
@@ -165,6 +165,8 @@ stringtext                          ([^\\\"])|(\\.)
 "__inline"                             { return INLINE; }
 "__nonnull"                            { if (!parse_ignored_macro()) REJECT; }
 "_Noreturn"                            { /* Ignore */ }
+/* Apparently found in the wild in OS X system headers */
+"__signed"                              { return SIGNED; }
 "__signed__"                           { return SIGNED; }
 "__restrict"                           { return RESTRICT; }
 "__restrict__"                         { return RESTRICT; }