diff --git a/include/private/gcconfig.h b/include/private/gcconfig.h

index b342883..174dd88 100644

--- a/include/private/gcconfig.h

+++ b/include/private/gcconfig.h

@@ -109,6 +109,21 @@ EXTERN_C_BEGIN

 #   define LINUX

 # endif

+# if defined(__midipix__)

+#    define MIDIPIX

+

+#    include <fcntl.h>

+#    include <sys/select.h>

+

+#    include <psxtypes/psxtypes.h>

+#    include <pemagine/pemagine.h>

+#    include <ntapi/nt_thread.h>

+

+     int __gc_data_start_mark__[1];

+     int __gc_data_end_mark__[1];

+

+# endif

+

 /* And one for NetBSD: */

 # if defined(__NetBSD__)

 #    define NETBSD

@@ -350,6 +359,16 @@ EXTERN_C_BEGIN

 #    define X86_64

 #    define mach_type_known

 # endif

+# if defined(MIDIPIX)

+#    if defined(__i386__)

+#      define I386

+#      define mach_type_known

+#    endif

+#    if defined(__x86_64__)

+#      define X86_64

+#      define mach_type_known

+#    endif

+# endif

 # if defined(LINUX) && (defined(i386) || defined(__i386__))

 #    define I386

 #    define mach_type_known

@@ -1542,6 +1561,13 @@ EXTERN_C_BEGIN

           EXTERN_C_BEGIN

 #       endif

 #   endif

+#   ifdef MIDIPIX

+#      define OS_TYPE "MIDIPIX"

+#      define DATASTART   ((ptr_t)__gc_data_start_mark__)

+#      define DATAEND     ((ptr_t)__gc_data_end_mark__)

+#      define STACKBOTTOM (ptr_t)(((nt_tib *)pe_get_teb_address())->stack_base)

+#      define USE_MMAP_ANON

+#   endif

 #   ifdef CYGWIN32

 #       define OS_TYPE "CYGWIN32"

 #       define WOW64_THREAD_CONTEXT_WORKAROUND

@@ -2706,6 +2732,13 @@ EXTERN_C_BEGIN

           EXTERN_C_BEGIN

 #       endif

 #   endif

+#   ifdef MIDIPIX

+#      define OS_TYPE "MIDIPIX"

+#      define DATASTART   ((ptr_t)__gc_data_start_mark__)

+#      define DATAEND     ((ptr_t)__gc_data_end_mark__)

+#      define STACKBOTTOM (ptr_t)(((nt_tib *)pe_get_teb_address())->stack_base)

+#      define USE_MMAP_ANON

+#   endif

 #   ifdef DARWIN

 #     define OS_TYPE "DARWIN"

 #     define DARWIN_DONT_PARSE_STACK 1

@@ -3111,7 +3144,7 @@ EXTERN_C_BEGIN

 #if defined(SVR4) || defined(LINUX) || defined(IRIX5) || defined(HPUX) \

     || defined(OPENBSD) || defined(NETBSD) || defined(FREEBSD) \

     || defined(DGUX) || defined(BSD) || defined(HAIKU) || defined(HURD) \

-    || defined(AIX) || defined(DARWIN) || defined(OSF1)

+    || defined(AIX) || defined(DARWIN) || defined(OSF1) || defined(MIDIPIX)

 # define UNIX_LIKE      /* Basic Unix-like system calls work.   */

 #endif