File cdrdao-1.2.2-usal.patch of Package cdrdao

--- acinclude.m4
+++ acinclude.m4
@@ -128,7 +128,7 @@
 
   AC_MSG_CHECKING(for libscg/schily version >= $1)
   CFLAGS="$scsilib_incl"
-  LIBS="$scsilib_libs"
+  LIBS="$scsilib_libs -lscg -lschily"
 
   AC_RUN_IFELSE([AC_LANG_PROGRAM([[
 #include <stdio.h>
@@ -161,3 +161,48 @@
 ]
 )
 
+AC_DEFUN([AC_LIBUSAL],
+[dnl
+dnl Get libusal version
+dnl
+
+  AC_LANG_SAVE
+  AC_LANG_C
+  ac_save_CFLAGS="$CFLAGS"
+  ac_save_LIBS="$LIBS"
+
+  AC_MSG_CHECKING(for libusal/rols version >= $1)
+  CFLAGS="$scsilib_incl"
+  LIBS="$scsilib_libs -lusal -lrols"
+
+  AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <stdio.h>
+#include <standard.h>
+#include <usal/usalcmd.h>
+#include <usal/scsitransp.h>
+]],[[
+  int maj1, maj2, min1, min2;
+  const char* v1 = "$1";
+  const char* v2 = usal_version(0, SCG_VERSION);
+  maj1 = atoi(v1);
+  maj2 = atoi(v2);
+  if (maj2 < maj1) {
+    return -1;
+  }
+  if (!strchr(v1, '.') || !strchr(v2, '.'))
+    return -1;
+
+  min1 = atoi(strchr(v1, '.') + 1);
+  min2 = atoi(strchr(v2, '.') + 1);
+  if (min2 < min1) {
+    return -1;
+  }
+   
+]])],[AC_MSG_RESULT(yes); $2],[AC_MSG_RESULT(no); $3],[AC_MSG_RESULT(skipped); $2])
+
+  CFLAGS="$ac_save_CFLAGS"
+  LIBS="$ac_save_LIBS"
+  AC_LANG_RESTORE
+]
+)
+
--- configure.ac
+++ configure.ac
@@ -257,6 +257,7 @@
          [sgsysinc=yes; scsilib_incl="-I/usr/include/schily"])
       AC_CHECK_FILE(/usr/local/include/schily/schily.h,
          [sgsysinc=yes; scsilib_incl="-I/usr/local/include/schily"])
+      AC_CHECK_LIB(usal, usal_version, [sgsyslib=yes], , -lrols)
     else
       scsilib_incl="-I$scglib_inc"
       scsilib_libs="-L$scglib_lib"
@@ -273,7 +274,6 @@
     en_scsilib="yes"
   fi
   
-  scsilib_libs="$scsilib_libs -lscg -lschily"
   scsilib_objs="ScsiIf-lib.o"
   
   case "$host" in
@@ -317,13 +317,30 @@
 
 dnl If we're using custom libsch/schily libs, make sure it'll compile
 if test "$en_custom_libscg" = yes; then
-  AC_LIBSCG(0.5,[have_scg05=yes],[AC_MSG_ERROR([No cdrtools libraries found. You need to install cdrtools version >= 1.10 (a.k.a. cdrecord-devel). To build the included fallback scsi library, please use --with-scglib=pkg (see INSTALL file)])])
+  AC_LIBSCG(0.5,[have_scg05=yes],[])
+  AC_LIBUSAL(1.1,[have_usal=yes],[])
+
+  if test ! "$have_scg05" = yes -a ! "$have_usal" = yes; then
+    AC_MSG_ERROR([No cdrtools libraries found. You need to install cdrtools version >= 1.10 (a.k.a. cdrecord-devel). To build the included fallback scsi library, please use --with-scglib=pkg (see INSTALL file)])
+  fi
+  
   AC_LIBSCG(0.7,[have_scg07=yes], [])
 
+  if test "$have_scg05" = yes; then
+    scsilib_libs="$scsilib_libs -lscg -lschily"
+  fi
+
   dnl Special case when we're compiling with cdrtools 1.10
   if test "$have_scg05" = yes -a ! "$have_scg07" = yes; then
     AC_DEFINE(USE_OLDSCGLIB,1,"")
   fi
+  if test "$have_usal" = yes; then
+    AC_DEFINE(USE_LIBUSAL,1,"")
+    scsilib_libs="$scsilib_libs -lusal -lrols"
+  fi
+else
+  dnl internal libscg
+  scsilib_libs="$scsilib_libs -lscg -lschily"
 fi
 
 dnl Selection of buffer code
--- dao/ScsiIf-lib.cc
+++ dao/ScsiIf-lib.cc
@@ -30,10 +30,30 @@
 #include "xconfig.h"
 
 #include "standard.h"
+#if USE_LIBUSAL
+#include "usal/usalcmd.h"
+#include "usal/scsitransp.h"
+#include "usal/scsireg.h"
+#define scg_open      usal_open
+#define scg_close     usal_close
+#define scg_bufsize   usal_bufsize
+#define scg_getbuf    usal_getbuf
+#define scg_cmd       usal_cmd
+#define scg_printerr  usal_printerr
+#define scg_help      usal_help
+#define scg_sense_key usal_sense_key
+#define scg_isatapi   usal_isatapi
+#define scg_scsibus   usal_scsibus
+#define scg_target    usal_target
+#define scg_lun       usal_lun
+#define scg_havebus   usal_havebus
+#define scg_settarget usal_settarget
+#define scg_version   usal_version
+#else
 #include "scg/scgcmd.h"
 #include "scg/scsitransp.h"
 #include "scg/scsireg.h"
-
+#endif /* USE_LIBUSAL */
 // schily/standard.h define these, i don't know what they smoked the
 // day they came up with those defines.
 #undef vendor