crtstuff.c: If !inhibit_libc, include stdlib.h/unistd.h.

	* crtstuff.c: If !inhibit_libc, include stdlib.h/unistd.h.
	Otherwise provide a declaration for atexit.
	(init_dummy): Make sure dummy call to atexit is nevertheless
	called with correct number of args.

	* frame.c: Update comments referring to other files.

	* libgcc2.c: Likewise.

From-SVN: r31124

gcc/ChangeLog

 1999-12-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
+	* crtstuff.c: If !inhibit_libc, include stdlib.h/unistd.h.
+	Otherwise provide a declaration for atexit.
+	(init_dummy): Make sure dummy call to atexit is nevertheless
+	called with correct number of args.
+
+	* frame.c: Update comments referring to other files.
+	
+	* libgcc2.c: Likewise.
+
+1999-12-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
 	* cse.c (free_element, get_element): Remove unused prototypes.
 
 	* fold-const.c (extract_muldiv): Initialize variables `op0' and

gcc/crtstuff.c

@@ -52,6 +52,21 @@ Boston, MA 02111-1307, USA.  */
    do not apply.  */
 
 #include "tm.h"
+
+/* We disable this when inhibit_libc, so that gcc can still be built without
+   needing header files first.  */
+/* ??? This is not a good solution, since prototypes may be required in
+   some cases for correct code.  See also libgcc2.c/frame.c.  */
+#ifndef inhibit_libc
+/* fixproto guarantees these system headers exist. */
+#include <stdlib.h>
+#include <unistd.h>
+#else
+# ifndef atexit
+extern int atexit(void (*)(void));
+# endif
+#endif
+
 #include "defaults.h"
 #include <stddef.h>
 #include "frame.h"
@@ -403,7 +418,7 @@ init_dummy (void)
     extern char **__environ;
 
     ___brk_addr = __environ;
-    atexit ();
+    atexit (0);
   }
 #endif
 }

gcc/frame.c

@@ -36,7 +36,7 @@ Boston, MA 02111-1307, USA.  */
 /* We disable this when inhibit_libc, so that gcc can still be built without
    needing header files first.  */
 /* ??? This is not a good solution, since prototypes may be required in
-   some cases for correct code.  See also libgcc2.c.  */
+   some cases for correct code.  See also libgcc2.c/crtstuff.c.  */
 #ifndef inhibit_libc
 /* fixproto guarantees these system headers exist. */
 #include <stdlib.h>

gcc/libgcc2.c

@@ -35,7 +35,7 @@ Boston, MA 02111-1307, USA.  */
 /* We disable this when inhibit_libc, so that gcc can still be built without
    needing header files first.  */
 /* ??? This is not a good solution, since prototypes may be required in
-   some cases for correct code.  See also frame.c.  */
+   some cases for correct code.  See also frame.c/crtstuff.c.  */
 #ifndef inhibit_libc
 /* fixproto guarantees these system headers exist. */
 #include <stdlib.h>