Hello,
compiling SANE under linux with Intel icc fails because inb/outb are
not defined, due to an ifdef __GNUC__ in sys/io.h . So testing
HAVE_SYS_IO_H isn't enough, We should also test for __GNUC__ . Since icc
accepts gcc inline assembly, we can use the code written to define inb and
outbi when there is no io.h.
Here are the patches I needed to compile SANE with icc. The biggest
change is in qcam.c, where a fallback is provided when direct io is missing.
--- /home/stefdev/cvs/sane/sane-backends/sanei/sanei_pio.c 2000-08-12
17:11:34.000000000 +0200
+++ /home/stefdev/icc/umax_pp/sanei/sanei_pio.c 2003-02-18 13:10:00.000000000
+0100
@@ -58,13 +58,13 @@
# include <unistd.h>
#endif
-#ifdef HAVE_SYS_IO_H
+#if HAVE_SYS_IO_H && defined (__GNUC__)
# include <sys/io.h> /* use where available (glibc 2.x, for example) */
-#elif HAVE_ASM_IO_H
+#elif HAVE_ASM_IO_H && defined (__GNUC__)
# include <asm/io.h> /* ugly, but backwards compatible */
#elif HAVE_SYS_HW_H
# include <sys/hw.h>
-#elif defined(__i386__) && defined (__GNUC__)
+#elif defined(__i386__) && ( defined (__GNUC__) || defined (__ICC) )
static __inline__ void
outb (u_char value, u_long port)
--- /home/stefdev/cvs/sane/sane-backends/sanei/sanei_ab306.c 2001-12-01
20:37:23.000000000 +0100
+++ /home/stefdev/icc/umax_pp/sanei/sanei_ab306.c 2003-02-18
13:10:08.000000000 +0100
@@ -49,11 +49,11 @@
#include <sys/types.h>
-#ifdef HAVE_SYS_IO_H
+#if HAVE_SYS_IO_H && defined (__GNUC__)
# include <sys/io.h> /* use where available (glibc 2.x, for example) */
-#elif HAVE_ASM_IO_H
+#elif HAVE_ASM_IO_H && defined (__GNUC__)
# include <asm/io.h> /* ugly, but backwards compatible */
-#elif defined (__i386__) && defined (__GNUC__)
+#elif defined (__i386__) && ( defined (__GNUC__) || defined (__ICC) )
static __inline__ void
outb (u_char value, u_long port)
--- /home/stefdev/cvs/sane/sane-backends/backend/qcam.c 2002-01-11
18:49:09.000000000 +0100
+++ /home/stefdev/icc/umax_pp/backend/qcam.c 2003-02-18 13:17:33.000000000
+0100
@@ -202,19 +202,29 @@
#if defined(__linux__) || defined (HAVE_SYS_HW_H)
-#ifdef HAVE_SYS_IO_H
+#if HAVE_SYS_IO_H && defined (__GNUC__)
# include <sys/io.h> /* GNU libc based Linux */
-#elif HAVE_ASM_IO_H
+#elif HAVE_ASM_IO_H && defined (__GNUC__)
# include <asm/io.h> /* older Linux */
#elif HAVE_SYS_HW_H
# include <sys/hw.h> /* OS/2 */
+#else
+# define IO_SUPPORT_MISSING
#endif
-#define read_lpdata(d) inb ((d)->port)
-#define read_lpstatus(d) inb ((d)->port + 1)
-#define read_lpcontrol(d) inb ((d)->port + 2)
-#define write_lpdata(d,v) outb ((v), (d)->port)
-#define write_lpcontrol(d,v) outb ((v), (d)->port + 2)
+#ifdef IO_SUPPORT_MISSING
+# define read_lpdata(d) 0xFF
+# define read_lpstatus(d) 0xFF
+# define read_lpcontrol(d) 0xFF
+# define write_lpdata(d,v)
+# define write_lpcontrol(d,v)
+#else
+# define read_lpdata(d) inb ((d)->port)
+# define read_lpstatus(d) inb ((d)->port + 1)
+# define read_lpcontrol(d) inb ((d)->port + 2)
+# define write_lpdata(d,v) outb ((v), (d)->port)
+# define write_lpcontrol(d,v) outb ((v), (d)->port + 2)
+#endif
#endif /* __linux__ */
The umax_pp backend has allready been modified (in CVS )and I could test
direct hardware access with scanimage built with icc.
Regards,
Stef
