Based on an idea from Jani Nikula.
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Derek Morton <derek.j.morton@xxxxxxxxx>
Signed-off-by: Thomas Wood <thomas.wood@xxxxxxxxx>
---
configure.ac | 2 +-
tools/intel_reg.c | 17 ++++++++++++++++-
2 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index f3603c1..3770b2f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,7 +56,7 @@ AM_CONDITIONAL(HAVE_RST2MAN, [test "x$RST2MAN" = xyes])
# Checks for functions, headers, structures, etc.
AC_HEADER_STDC
-AC_CHECK_HEADERS([termios.h linux/kd.h sys/kd.h libgen.h])
+AC_CHECK_HEADERS([termios.h linux/kd.h sys/kd.h libgen.h sys/io.h])
AC_CHECK_MEMBERS([struct sysinfo.totalram],[],[],[AC_INCLUDES_DEFAULT
#include <sys/sysinfo.h>
])
diff --git a/tools/intel_reg.c b/tools/intel_reg.c
index 090cc25..190aa5b 100644
--- a/tools/intel_reg.c
+++ b/tools/intel_reg.c
@@ -28,7 +28,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/io.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
@@ -38,6 +37,22 @@
#include "intel_reg_spec.h"
+
+#ifdef HAVE_SYS_IO_H
+#include <sys/io.h>
+#else
+
+static inline int _not_supported(void)
+{
+ fprintf(stderr, "portio-vga not supported\n");
+ exit(EXIT_FAILURE);
+}
+#define inb(port) _not_supported()
+#define outb(value, port) _not_supported()
+#define iopl(level)
+
+#endif /* HAVE_SYS_IO_H */
+
struct config {
struct pci_device *pci_dev;
char *mmiofile;
--
2.4.3
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