#include "sbcl.h"
+/* Currently threads live only on x86oid platforms, but this thing
+ * cannot ever work with threads, so... */
+#if !defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
+#define FOREIGN_FUNCTION_CALL_FLAG
+#endif
+
#ifndef LANGUAGE_ASSEMBLY
+
+#ifdef FOREIGN_FUNCTION_CALL_FLAG
extern int foreign_function_call_active;
-extern boolean stop_the_world;
+#endif
+
+extern size_t dynamic_space_size;
+extern size_t thread_control_stack_size;
+
+#ifdef LISP_FEATURE_WIN32
+#define ENVIRON _environ
+#else
+#define ENVIRON environ
+#endif
+extern char **ENVIRON;
-#if defined(LISP_FEATURE_SB_THREAD)
+#if defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_GCC_TLS)
extern pthread_key_t specials;
#endif
extern lispobj *current_binding_stack_pointer;
# endif
-# ifndef LISP_FEATURE_GENCGC
-/* Beware! gencgc has also a (non-global) dynamic_space_free_pointer. */
+#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
+/* This is unused on X86 and X86_64, but is used as the global
+ * allocation pointer by the cheney GC, and, in some instances, as
+ * the global allocation pointer on PPC/GENCGC. This should probably
+ * be cleaned up such that it only needs to exist on cheney. At the
+ * moment, it is also used by the GENCGC, to hold the pseudo_atomic
+ * bits, and is tightly coupled to reg_ALLOC by the assembly
+ * routines. */
extern lispobj *dynamic_space_free_pointer;
+#endif
+
+# ifndef LISP_FEATURE_GENCGC
extern lispobj *current_auto_gc_trigger;
# endif
# define POINTERSIZE 4
# endif
+#ifdef FOREIGN_FUNCTION_CALL_FLAG
EXTERN(foreign_function_call_active, 4)
+#endif
EXTERN(current_control_stack_pointer, POINTERSIZE)
EXTERN(current_control_frame_pointer, POINTERSIZE)