From ece8c2002e7c81e8bbd8aba83c155959aaa5ef21 Mon Sep 17 00:00:00 2001
From: "Adam D. Ruppe" <destructionator@gmail.com>
Date: Mon, 11 Feb 2019 20:34:17 -0500
Subject: [PATCH] change alloca to static buffer to avoid spurious exception
 handling error

---
 jpeg.d | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/jpeg.d b/jpeg.d
index f1c51c7..f2a5e8b 100644
--- a/jpeg.d
+++ b/jpeg.d
@@ -2971,9 +2971,10 @@ public bool detect_jpeg_image_from_file (const(char)[] filename, out int width,
   bool m_eof_flag, m_error_flag;
 
   if (filename.length == 0) throw new Exception("cannot open unnamed file");
-  if (filename.length < 2048) {
-    import core.stdc.stdlib : alloca;
-    auto tfn = (cast(char*)alloca(filename.length+1))[0..filename.length+1];
+  if (filename.length < 512) {
+    char[513] buffer;
+    //import core.stdc.stdlib : alloca;
+    auto tfn = buffer[0 .. filename.length + 1]; // (cast(char*)alloca(filename.length+1))[0..filename.length+1];
     tfn[0..filename.length] = filename[];
     tfn[filename.length] = 0;
     m_pFile = fopen(tfn.ptr, "rb");