Patch by Guillem Jover <guillem@debian.org> for arj <= 3.10.22 which
makes the code 64 bit clean. For further information, please see also
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=339815

Index: b/arj_arcv.c
===================================================================
--- a/arj_arcv.c	2005-06-21 22:53:12.000000000 +0300
+++ b/arj_arcv.c	2008-06-16 08:25:43.000000000 +0300
@@ -59,27 +59,27 @@ static char idxid_fault[]="?";
 #define setup_hput(ptr) (tmp_hptr=(ptr))
 
 #define hget_byte() (*(tmp_hptr++)&0xFF)
-#define hput_byte(c) (*(tmp_hptr++)=(char) (c))
+#define hput_byte(c) (*(tmp_hptr++)=(uint8_t) (c))
 
 /* Reads two bytes from the header, incrementing the pointer */
 
-static unsigned int hget_word()
+static uint16_t hget_word()
 {
- unsigned int result;
+ uint16_t result;
 
  result=mget_word(tmp_hptr);
- tmp_hptr+=sizeof(short);
+ tmp_hptr+=sizeof(uint16_t);
  return result;
 }
 
 /* Reads four bytes from the header, incrementing the pointer */
 
-static unsigned long hget_longword()
+static uint32_t hget_longword()
 {
- unsigned long result;
+ uint32_t result;
 
  result=mget_dword(tmp_hptr);
- tmp_hptr+=sizeof(unsigned long);
+ tmp_hptr+=sizeof(uint32_t);
  return result;
 }
 
@@ -87,18 +87,18 @@ static unsigned long hget_longword()
 
 /* Writes two bytes to the header, incrementing the pointer */
 
-static void hput_word(unsigned int w)
+static void hput_word(uint16_t w)
 {
  mput_word(w,tmp_hptr); 
- tmp_hptr+=sizeof(unsigned short);
+ tmp_hptr+=sizeof(uint16_t);
 }
 
 /* Writes four bytes to the header, incrementing the pointer */
 
-static void hput_longword(unsigned long l)
+static void hput_longword(uint32_t l)
 {
  mput_dword(l,tmp_hptr);
- tmp_hptr+=sizeof(unsigned long);
+ tmp_hptr+=sizeof(uint32_t);
 }
 
 /* Calculates and stores the basic header size */
Index: b/arj_proc.c
===================================================================
--- a/arj_proc.c	2008-06-16 08:25:28.000000000 +0300
+++ b/arj_proc.c	2008-06-16 08:25:43.000000000 +0300
@@ -585,7 +585,7 @@ int search_for_extension(char *name, cha
 /* Returns the exact amount of data that could be safely written to the
    destination volume */
 
-unsigned long get_volfree(unsigned int increment)
+unsigned long get_volfree(unsigned long increment)
 {
  unsigned long pvol;
  unsigned int arjsec_overhead;
@@ -605,7 +605,7 @@ unsigned long get_volfree(unsigned int i
  remain=volume_limit-ftell(aostream)-pvol-(long)arjsec_overhead-
         (long)out_bytes-(long)cpos-(long)ext_voldata-
         MULTIVOLUME_RESERVE-t_volume_offset;
- return((unsigned long)min(remain, (unsigned long)increment));
+ return((unsigned long)min(remain, increment));
 }
 
 /* Performs various checks when multivolume data is packed to predict an
@@ -2466,14 +2466,14 @@ static int get_str_from_jq()
     *tsptr='\0';
   endptr=tsptr;
   tsptr=sptr;
-  while((unsigned int)tsptr<(unsigned int)endptr&&patterns<SEARCH_STR_MAX)
+  while((intptr_t)tsptr<(intptr_t)endptr&&patterns<SEARCH_STR_MAX)
   {
    while(*tsptr=='\0')
     tsptr++;
-   if((unsigned int)tsptr<(unsigned int)endptr)
+   if((intptr_t)tsptr<(intptr_t)endptr)
    {
     search_str[patterns++]=tsptr;
-    while(*tsptr!='\0'&&(unsigned int)tsptr<(unsigned int)endptr)
+    while(*tsptr!='\0'&&(intptr_t)tsptr<(intptr_t)endptr)
      tsptr++;
    }
   }
@@ -2901,9 +2901,9 @@ char *ltrim(char *str)
 #if (defined(WORDS_BIGENDIAN) || defined(ALIGN_POINTERS)) && !defined(ARJDISP) && !defined(REGISTER)
 /* Model-independent routine to get 2 bytes from far RAM */
 
-unsigned int mget_word(char FAR *p)
+uint16_t mget_word(char FAR *p)
 {
- unsigned int b0, b1;
+ uint16_t b0, b1;
 
  b0=mget_byte(p);
  b1=mget_byte(p+1);
@@ -2912,9 +2912,9 @@ unsigned int mget_word(char FAR *p)
 
 /* Model-independent routine to get 4 bytes from far RAM */
 
-unsigned long mget_dword(char FAR *p)
+uint32_t mget_dword(char FAR *p)
 {
- unsigned long w0, w1;
+ uint32_t w0, w1;
 
  w0=mget_word(p);
  w1=mget_word(p+2);
@@ -2923,7 +2923,7 @@ unsigned long mget_dword(char FAR *p)
 
 /* Model-independent routine to store 2 bytes in far RAM */
 
-void mput_word(unsigned int w, char FAR *p)
+void mput_word(uint16_t w, char FAR *p)
 {
  mput_byte(w&0xFF, p);
  mput_byte(w>>8  , p+1);
@@ -2931,7 +2931,7 @@ void mput_word(unsigned int w, char FAR 
 
 /* Model-independent routine to store 4 bytes in far RAM */
 
-void mput_dword(unsigned long d, char FAR *p)
+void mput_dword(uint32_t d, char FAR *p)
 {
  mput_word(d&0xFFFF, p);
  mput_word(d>>16   , p+2);
Index: b/arj_proc.h
===================================================================
--- a/arj_proc.h	2008-06-16 08:25:28.000000000 +0300
+++ b/arj_proc.h	2008-06-16 08:25:43.000000000 +0300
@@ -8,15 +8,17 @@
 #ifndef ARJ_PROC_INCLUDED
 #define ARJ_PROC_INCLUDED
 
+#include <stdint.h>
+
 /* Helper macros */
 
-#define mget_byte(p) (*(unsigned char FAR *)(p)&0xFF)
-#define mput_byte(c, p) *(unsigned char FAR *)(p)=(unsigned char)(c)
+#define mget_byte(p) (*(uint8_t FAR *)(p)&0xFF)
+#define mput_byte(c, p) *(uint8_t FAR *)(p)=(uint8_t)(c)
 #if !defined(ALIGN_POINTERS) && !defined(WORDS_BIGENDIAN)
-#define mget_word(p) (*(unsigned short *)(p)&0xFFFF)
-#define mput_word(w,p) (*(unsigned short *)(p)=(unsigned short)(w))
-#define mget_dword(p) (*(unsigned long *)(p))
-#define mput_dword(w,p) (*(unsigned long *)(p)=(unsigned long)(w))
+#define mget_word(p) (*(uint16_t *)(p)&0xFFFF)
+#define mput_word(w,p) (*(uint16_t *)(p)=(uint16_t)(w))
+#define mget_dword(p) (*(uint32_t *)(p))
+#define mput_dword(w,p) (*(uint32_t *)(p)=(uint32_t)(w))
 #endif
 
 /* Prototypes */
@@ -31,7 +33,7 @@ void copy_bytes(unsigned long nbytes);
 int translate_path(char *name);
 void restart_proc(char *dest);
 int search_for_extension(char *name, char *ext_list);
-unsigned long get_volfree(unsigned int increment);
+unsigned long get_volfree(unsigned long increment);
 unsigned int check_multivolume(unsigned int increment);
 void store();
 void hollow_encode();
@@ -61,10 +63,10 @@ void unpack_mem(struct mempack *mempack)
 void strip_lf(char *str);
 char *ltrim(char *str);
 #if defined(ALIGN_POINTERS) || defined(WORDS_BIGENDIAN)
-unsigned int mget_word(char FAR *p);
-unsigned long mget_dword(char FAR *p);
-void mput_word(unsigned int w, char FAR *p);
-void mput_dword(unsigned long d, char FAR *p);
+uint16_t mget_word(char FAR *p);
+uint32_t mget_dword(char FAR *p);
+void mput_word(uint16_t w, char FAR *p);
+void mput_dword(uint32_t d, char FAR *p);
 #endif
 
 #endif