Removed unnecessary file

include/sane/sanei_backend.h

@@ -1,106 +0,0 @@
-#include <sane/sanei_debug.h>
-
-#ifdef HAVE_SYS_HW_H
-  /* OS/2 i/o-port access compatibility macros: */
-# define inb(p)         _inp8 (p)
-# define outb(v,p)      _outp8 ((p),(v))
-# define ioperm(b,l,o)  _portaccess ((b),(b)+(l)-1)
-# define HAVE_IOPERM    1
-#endif
-
-#ifndef HAVE_OS2_H
-#ifndef O_NONBLOCK
-# ifdef O_NDELAY
-#  define O_NONBLOCK O_NDELAY
-# else
-#  define O_NONBLOCK FNDELAY    /* last resort */
-# endif
-#endif
-#endif /* HAVE_OS2_H */
-
-#ifdef HAVE_SIGPROCMASK
-# define SIGACTION      sigaction
-#else
-
-/* Just enough backwards compatibility that we get by in the backends
-   without making handstands.  */
-# ifdef sigset_t
-#  undef sigset_t
-# endif
-# ifdef sigemptyset
-#  undef sigemptyset
-# endif
-# ifdef sigfillset
-#  undef sigfillset
-# endif
-# ifdef sigaddset
-#  undef sigaddset
-# endif
-# ifdef sigdelset
-#  undef sigdelset
-# endif
-# ifdef sigprocmask
-#  undef sigprocmask
-# endif
-# ifdef SIG_BLOCK
-#  undef SIG_BLOCK
-# endif
-# ifdef SIG_UNBLOCK
-#  undef SIG_UNBLOCK
-# endif
-# ifdef SIG_SETMASK
-#  undef SIG_SETMASK
-# endif
-
-# define sigset_t               int
-# define sigemptyset(set)       do { *(set) = 0; } while (0)
-# define sigfillset(set)        do { *(set) = ~0; } while (0)
-# define sigaddset(set,signal)  do { *(set) |= sigmask (signal); } while (0)
-# define sigdelset(set,signal)  do { *(set) &= ~sigmask (signal); } while (0)
-# define sigaction(sig,new,old) sigvec (sig,new,old)
-
-  /* Note: it's not safe to just declare our own "struct sigaction" since
-     some systems (e.g., some versions of OpenStep) declare that structure,
-     but do not implement sigprocmask().  Hard to believe, aint it?  */
-# define SIGACTION              sigvec
-# define SIG_BLOCK      1
-# define SIG_UNBLOCK    2
-# define SIG_SETMASK    3
-#endif /* !HAVE_SIGPROCMASK */
-
-/* Declare the entry points: */
-
-extern SANE_Status ENTRY(init) (SANE_Int *, SANE_Auth_Callback);
-extern SANE_Status ENTRY(get_devices) (const SANE_Device ***, SANE_Bool);
-extern SANE_Status ENTRY(open) (SANE_String_Const, SANE_Handle *);
-extern const SANE_Option_Descriptor *
-  ENTRY(get_option_descriptor) (SANE_Handle, SANE_Int);
-extern SANE_Status ENTRY(control_option) (SANE_Handle, SANE_Int, SANE_Action,
-                                          void *, SANE_Word *);
-extern SANE_Status ENTRY(get_parameters) (SANE_Handle, SANE_Parameters *);
-extern SANE_Status ENTRY(start) (SANE_Handle);
-extern SANE_Status ENTRY(read) (SANE_Handle, SANE_Byte *, SANE_Int,
-                                SANE_Int *);
-extern SANE_Status ENTRY(set_io_mode) (SANE_Handle, SANE_Bool);
-extern SANE_Status ENTRY(get_select_fd) (SANE_Handle, SANE_Int *);
-extern void ENTRY(cancel) (SANE_Handle);
-extern void ENTRY(close) (SANE_Handle);
-extern void ENTRY(exit) (void);
-
-#ifndef STUBS
-/* Now redirect sane_* calls to backend's functions: */
-
-#define sane_init(a,b)                  ENTRY(init) (a,b)
-#define sane_get_devices(a,b)           ENTRY(get_devices) (a,b)
-#define sane_open(a,b)                  ENTRY(open) (a,b)
-#define sane_get_option_descriptor(a,b) ENTRY(get_option_descriptor) (a,b)
-#define sane_control_option(a,b,c,d,e)  ENTRY(control_option) (a,b,c,d,e)
-#define sane_get_parameters(a,b)        ENTRY(get_parameters) (a,b)
-#define sane_start(a)                   ENTRY(start) (a)
-#define sane_read(a,b,c,d)              ENTRY(read) (a,b,c,d)
-#define sane_set_io_mode(a,b)           ENTRY(set_io_mode) (a,b)
-#define sane_get_select_fd(a,b)         ENTRY(get_select_fd) (a,b)
-#define sane_cancel(a)                  ENTRY(cancel) (a)
-#define sane_close(a)                   ENTRY(close) (a)
-#define sane_exit(a)                    ENTRY(exit) (a)
-#endif /* STUBS */