From 461819928caad65a96d7c1886a0051a48e7bcbf6 Mon Sep 17 00:00:00 2001
From: Richard Stallman <rms@gnu.org>
Date: Wed, 11 Nov 1992 05:41:43 +0000
Subject: [PATCH] (rescan): Accept # as command inside macro args, etc.

if an actual newline at the same level precedes.

From-SVN: r2741
---
 gcc/cccp.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/gcc/cccp.c b/gcc/cccp.c
index c3487fdd5b9..3c8882087d2 100644
--- a/gcc/cccp.c
+++ b/gcc/cccp.c
@@ -2260,9 +2260,14 @@ do { ip = &instack[indepth];		\
 	}
       }
 
-      /* Recognize preprocessor directives only when reading
-	 directly from a file.  */
-      if (ip->fname == 0)
+      /* If this is expanding a macro definition, don't recognize
+	 preprocessor directives.  */
+      if (ip->macro != 0)
+	goto randomchar;
+      /* If this is expand_into_temp_buffer, recognize them
+	 only after an actual newline at this level,
+	 not at the beginning of the input level.  */
+      if (ip->fname == 0 && beg_of_line == ip->buf)
 	goto randomchar;
       if (ident_length)
 	goto specialchar;
-- 
2.30.2