# define POWERPC
# define mach_type_known
# endif
+# if defined(FREEBSD) && (defined(powerpc) || defined(__powerpc__))
+# define POWERPC
+# define mach_type_known
+# endif
# if defined(LINUX) && defined(__mc68000__)
# define M68K
# define mach_type_known
should be looked into some more */
# define NO_PTHREAD_TRYLOCK
# endif
+# ifdef FREEBSD
+# define ALIGNMENT 4
+# define OS_TYPE "FREEBSD"
+# ifndef GC_FREEBSD_THREADS
+# define MPROTECT_VDB
+# endif
+# define SIG_SUSPEND SIGUSR1
+# define SIG_THR_RESTART SIGUSR2
+# define FREEBSD_STACKBOTTOM
+# ifdef __ELF__
+# define DYNAMIC_LOADING
+# endif
+ extern char etext[];
+ extern char * GC_FreeBSDGetDataStart();
+# define DATASTART GC_FreeBSDGetDataStart(0x1000, &etext)
+# endif
# ifdef NETBSD
# define ALIGNMENT 4
# define OS_TYPE "NETBSD"