Detecting Linux systems without generic SCSI support by scsi/scsi.h

COPYRIGHT

@@ -1,7 +1,7 @@
 Derek Foreman <derek@signalmarketing.com> and Ben Jansens <xor@orodu.net>
 Copyright (C) 2002-2006  Derek Foreman and Ben Jansens
 Mario Danic <mario.danic@gmail.com>, Thomas Schmitt <scdbackup@gmx.net>
-Copyright (C) 2006-2014 Mario Danic, Thomas Schmitt
+Copyright (C) 2006-2017 Mario Danic, Thomas Schmitt
 
 
     This program is free software; you can redistribute it and/or modify

acinclude.m4

@@ -149,3 +149,24 @@ AC_DEFUN([LIBBURNIA_CHECK_ARCH_LIBS],
     fi
 ])
 
+
+dnl LIBBURNIA_CHECK_LINUX_SCSI is by Thomas Schmitt, libburnia project
+dnl
+AC_DEFUN([LIBBURNIA_CHECK_LINUX_SCSI],
+[
+  dnl Check whether it is a Linux without scsi/scsi.h
+  AH_TEMPLATE([Libburn_use_sg_dummY],
+              [Define to compile without OS specific SCSI features])
+  AC_MSG_CHECKING([for missing scsi/scsi.h on Linux])
+  AC_TRY_COMPILE([
+#ifdef __linux
+#include <scsi/scsi.h>
+#endif
+     ],
+     [return;],
+     [AC_MSG_RESULT([no])],
+     [AC_DEFINE([Libburn_use_sg_dummY], [yes])
+      AC_MSG_RESULT([yes])]
+  )
+])
+

configure.ac

@@ -298,6 +298,10 @@ else
     fi
 fi
 
+dnl ts B70127
+# There are Linuxes with no public generic SCSI interface
+LIBBURNIA_CHECK_LINUX_SCSI
+
 dnl ts B00704
 # Library versioning normally serves a complex purpose.
 # Since libburn obeys strict ABI backward compatibility, it needs only the