arch/unix/unix.c: fix build on x86 architecture with modern gcc compilers
Modern gcc compilers will fail to build x86 OpenBIOS failing with the error
message "libc/misc.c:20: multiple definition of `errno_int'" during link.
Since the accompanying comment mentions that the reason for adding the
definition is to allow compilation to succeed on OS X, surround it with
suitable #if defined(__APPLE__) ... #endif guards.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
diff --git a/arch/unix/unix.c b/arch/unix/unix.c
index 1f628eb..cb9757e 100644
--- a/arch/unix/unix.c
+++ b/arch/unix/unix.c
@@ -68,7 +68,9 @@
unsigned long isa_io_base;
#endif
+#if defined(__APPLE__)
int errno_int; /* implement for fs drivers, needed to build on Mac OS X */
+#endif
ucell ofmem_claim(ucell addr, ucell size, ucell align)
{
