From cce4dd3fb564765b6029337ab95c8fcfbd71bf27 Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Thu, 11 Nov 2010 23:17:02 +0100
Subject: [PATCH] Add notes about the AIX compiler's preprocessor output

---
 ccache.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/ccache.c b/ccache.c
index 25ff2b168..6022dd31d 100644
--- a/ccache.c
+++ b/ccache.c
@@ -440,6 +440,11 @@ process_preprocessed_file(struct mdfour *hash, const char *path)
 		 *
 		 *   #line N "file"
 		 *
+		 * AIX's compiler:
+		 *
+		 *   #line N "file"
+		 *   #line N
+		 *
 		 * Note that there may be other lines starting with '#' left after
 		 * preprocessing as well, for instance "#    pragma".
 		 */
@@ -449,7 +454,7 @@ process_preprocessed_file(struct mdfour *hash, const char *path)
 		        /* GCC precompiled header: */
 		        || (q[1] == 'p'
 		            && str_startswith(&q[2], "ragma GCC pch_preprocess "))
-		        /* HP: */
+		        /* HP/AIX: */
 		        || (q[1] == 'l' && q[2] == 'i' && q[3] == 'n' && q[4] == 'e'
 		            && q[5] == ' '))
 		    && (q == data || q[-1] == '\n')) {
-- 
2.47.2