/* Check for OS */
#if defined(__IRIX__) || defined(__sparc__) || defined(__linux__) || \
- defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+ defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \
+ defined(__FreeBSD_kernel__) || defined(__GNU__)
# define GLIDE_OS GLIDE_OS_UNIX
#elif defined(__DOS__)
# define GLIDE_OS GLIDE_OS_DOS32