Disable the new Linux SG interface for sparc64 to work-around 32 bit userland

/ 64 bit kernel problems.

ChangeLog

@@ -1,3 +1,9 @@
+2003-01-17  Henning Meier-Geinitz <henning@meier-geinitz.de>
+
+	* configure configure.in include/sane/config.h.in sanei/sanei_scsi.c:
+	  Disable the new Linux SG interface for sparc64 to work-around 32 bit 
+	  userland / 64 bit kernel problems.
+
 2003-01-16  Frank Zago  <fzago at austin dot rr dot com>
 
 	* backend/leo.c doc/descriptions/leo.desc doc/leo/leo.txt: Added

configure.in

@@ -202,6 +202,11 @@ if test "${ac_cv_header_usb_h}" = "yes" ; then
   fi
 fi
 
+dnl disable Linux SCSI generic version 3 to avoid 32/64 bit problems
+if test "`uname`" = "sparc64" ; then
+  AC_DEFINE(DISABLE_LINUX_SG_IO, 1, [Should we disable SCSI generic v3?])
+fi
+
 dnl ***********************************************************************
 dnl initialize libtool
 dnl ***********************************************************************

include/sane/config.h.in

@@ -8,6 +8,9 @@
 /* Define to 1 if using `alloca.c'. */
 #undef C_ALLOCA
 
+/* Should we disable SCSI generic v3? */
+#undef DISABLE_LINUX_SG_IO
+
 /* Define to 1 if you have `alloca', as a function or macro. */
 #undef HAVE_ALLOCA
 
@@ -368,13 +371,13 @@
 /* Define to `int' if <sys/types.h> does not define. */
 #undef pid_t
 
-/* Define scsireq_t as `struct scsireq' if necessary. */
+/* Define scsireq_t as \`struct scsireq\' if necessary. */
 #undef scsireq_t
 
 /* Define to `unsigned' if <sys/types.h> does not define. */
 #undef size_t
 
-/* Define socklen_t as `int' if necessary. */
+/* Define socklen_t as \`int\' if necessary. */
 #undef socklen_t
 
 /* Define to `long' if <sys/types.h> does not define. */

sanei/sanei_scsi.c

@@ -179,6 +179,10 @@
 # include "sanei_DomainOS.h"
 #endif
 
+#ifdef DISABLE_LINUX_SG_IO
+#undef SG_IO
+#endif /* DISABLE_LINUX_SG_IO */
+
 #ifndef USE
 # define USE STUBBED_INTERFACE
 #endif