gas: don't ignore .linefile inside false conditionals

When assembling code previously pre-processed by a C compiler, long
enough comments may have been collapsed into "# <line> <file>"
constructs. If we skip these, line numbers (and possibly even file
names) will be off / wrong in both diagnostics and debug info.

1 files changed, 4 insertions, 0 deletions

diff --git a/gas/cond.c b/gas/cond.c
index ee441e1..27977db 100644
--- a/gas/cond.c
+++ b/gas/cond.c
@@ -525,6 +525,10 @@ ignore_input (void)
 	  || !strncasecmp (s, "endc", 4))
 	return 0;
       break;
+    case 'l': case 'L':
+      if (!strncasecmp (s, "linefile", 8))
+	return 0;
+      break;
     }
 
   return (current_cframe != NULL) && (current_cframe->ignoring);