From 764554bbe6b2249ec6c78e8d3db42200fbfe52e1 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Tue, 5 Sep 2017 08:39:23 +0200
Subject: hpoj new

---
 hpoj/hpoj-pack.patch | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 hpoj/hpoj-pack.patch

(limited to 'hpoj/hpoj-pack.patch')

diff --git a/hpoj/hpoj-pack.patch b/hpoj/hpoj-pack.patch
new file mode 100644
index 00000000..beb7040d
--- /dev/null
+++ b/hpoj/hpoj-pack.patch
@@ -0,0 +1,59 @@
+There is a rather scary and longstanding GCC bug [1] which causes
+instant crashes if a program defines a struct with function-pointers
+and that structure happens to be "packed".  Why anybody would want to
+do such a thing is beyond me, but suffice it to say that hpoj v0.91 is
+doing precisely that.  The current Debian/sarge package for hpoj is
+definitely affected (any attempt to scan an image results in an
+instant crash).
+
+A patch to work around the problem is attached.
+
+Perhaps the hpoj developers can tell us whether it was really
+intentional to have the #pragma pack(1) span all of <stdlib.h> and
+<xform.h>?
+
+Thanks,
+
+	--david
+
+[1] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=1844
+
+--- hpoj-0.91/include/hpojip.h	2002-07-25 02:01:24.000000000 -0700
++++ hpoj-0.91-davidm/include/hpojip.h	2004-11-11 21:19:58.775236374 -0800
+@@ -131,12 +132,15 @@
+ 	float fl;
+ } DWORD_OR_PVOID;
+ 
++#pragma pack ()
++
+ #ifdef HPOJIP_INTERNAL
+ #include "../lib/hpojip/xform.h"   // this file uses the above definitions
+ #else
+ typedef struct IP_XFORM_TBL_s FAR *LPIP_XFORM_TBL;
+ #endif
+ 
++#pragma pack (1)
+ 
+ /****************************************************************************\
+  ****************************************************************************
+@@ -587,8 +591,6 @@
+ 
+ EXPORT(WORD) ipGetFuncPtrs (LPIP_JUMP_TBL lpJumpTbl);
+ 
+-#pragma pack ()
+-
+ /****************************************************************************\
+  ****************************************************************************
+  *
+
+
+-------------------------------------------------------
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-- 
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