Rationalised use of #includes to be more standards-compliant.

mach/proto/as/comm0.h

@@ -78,11 +78,15 @@ separate linker only possible if relocation info produced
 /* ========== Machine independent type declarations ========== */
 
 #ifdef _include
+_include    <stdlib.h>
 _include	<stdio.h>
+_include    <string.h>
 _include	<ctype.h>
 _include	<signal.h>
 #else
+#include    <stdlib.h>
 #include	<stdio.h>
+#include    <string.h>
 #include	<ctype.h>
 #include	<signal.h>
 #endif

mach/proto/as/comm1.h

@@ -116,14 +116,6 @@ extern valu_t	load();
 extern FILE	*ffcreat();
 extern FILE	*fftemp();
 
-/* some library functions used */
-extern char	*mktemp();
-extern char	*malloc();
-extern char	*realloc();
-extern char	*calloc();
-extern char	*getenv();
-extern char	*strncpy();
-
 /* ========== Machine dependent C declarations ========== */
 
 #include	"mach1.c"

mach/proto/as/comm4.c

@@ -20,7 +20,7 @@ extern YYSTYPE	yylval;
 
 /* ========== Machine independent C routines ========== */
 
-stop() {
+void stop() {
 #if DEBUG < 2
 	unlink(temppath);
 #ifdef LISTING