From 312a85ce01d007900f4093675643c3bde4297bac Mon Sep 17 00:00:00 2001
From: kai <kai@redstar.de>
Date: Sun, 24 Mar 2013 19:42:18 +0100
Subject: [PATCH] Fix a buffer overrun on Linux/PPC64.

The buffer in realToMangleBuffer() is too small for a longdouble.
---
 dmd2/expression.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dmd2/expression.c b/dmd2/expression.c
index 827b916b..f89a44fb 100644
--- a/dmd2/expression.c
+++ b/dmd2/expression.c
@@ -2640,7 +2640,12 @@ void realToMangleBuffer(OutBuffer *buf, real_t value)
         buf->writestring("NAN");        // no -NAN bugs
     else
     {
+#if IN_LLVM
+        // The buffer is too small for a longdouble on PPC.
+        char buffer[36];
+#else
         char buffer[32];
+#endif
         int n = ld_sprint(buffer, 'A', value);
         assert(n > 0 && n < sizeof(buffer));
         for (int i = 0; i < n; i++)