diff --git a/hw/xfree86/sdksyms.sh b/hw/xfree86/sdksyms.sh
index 2305073a0..05ac41096 100755
--- a/hw/xfree86/sdksyms.sh
+++ b/hw/xfree86/sdksyms.sh
@@ -350,13 +350,25 @@ BEGIN {
     if (sdk) {
 	n = 3;
 
+        # skip line numbers GCC 5 adds before __attribute__
+        while ($n == "" || $0 ~ /^# [0-9]+ "/) {
+           getline;
+           n = 1;
+        }
+
 	# skip attribute, if any
 	while ($n ~ /^(__attribute__|__global)/ ||
 	    # skip modifiers, if any
 	    $n ~ /^\*?(unsigned|const|volatile|struct|_X_EXPORT)$/ ||
 	    # skip pointer
-	    $n ~ /^[a-zA-Z0-9_]*\*$/)
+	    $n ~ /^[a-zA-Z0-9_]*\*$/) {
 	    n++;
+            # skip line numbers GCC 5 adds after __attribute__
+            while ($n == "" || $0 ~ /^# [0-9]+ "/) {
+               getline;
+               n = 1;
+            }
+        }
 
 	# type specifier may not be set, as in
 	#   extern _X_EXPORT unsigned name(...)