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-rw-r--r--hwaccess.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/hwaccess.c b/hwaccess.c
index f0b2f63..598aa67 100644
--- a/hwaccess.c
+++ b/hwaccess.c
@@ -28,7 +28,8 @@
#define IS_BSD (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__OpenBSD__))
#define IS_LINUX (defined(__gnu_linux__) || defined(__linux__))
-#if !(IS_BSD || IS_LINUX || defined(__DJGPP__) || defined(__LIBPAYLOAD__) || defined(__sun))
+#define IS_MACOSX (defined(__APPLE__) && defined(__MACH__))
+#if !(IS_BSD || IS_LINUX || IS_MACOSX || defined(__DJGPP__) || defined(__LIBPAYLOAD__) || defined(__sun))
#error "Unknown operating system"
#endif
@@ -72,7 +73,7 @@ static int release_io_perms(void *p)
sysi86(SI86V86, V86SC_IOPL, 0);
#elif IS_BSD
close(io_fd);
-#elif IS_LINUX
+#elif IS_LINUX || IS_MACOSX
iopl(0);
#endif
return 0;
@@ -87,7 +88,7 @@ int rget_io_perms(void)
if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) != 0) {
#elif IS_BSD
if ((io_fd = open("/dev/io", O_RDWR)) < 0) {
-#elif IS_LINUX
+#elif IS_LINUX || IS_MACOSX
if (iopl(3) != 0) {
#endif
msg_perr("ERROR: Could not get I/O privileges (%s).\n"
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