genattr.c: Wrap prototype of `free' in NEED_DECLARATION_FREE.

        * genattr.c: Wrap prototype of `free' in NEED_DECLARATION_FREE.
        * genattrtab.c: Likewise.
        * genconfig.c: Likewise.
        * genemit.c: Likewise.
        * genextract.c: Likewise.
        * genflags.c: Likewise.
        * genopinit.c: Likewise.
        * genoutput.c: Likewise.
        * genpeep.c: Likewise.
        * genrecog.c: Likewise.
        * tlink.c: Likewise.  Also wrap `getenv' in NEED_DECLARATION_GETENV.

From-SVN: r18284

gcc/genattr.c

 /* Generate attribute information (insn-attr.h) from machine description.
-   Copyright (C) 1991, 1994, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1994, 1996, 1998 Free Software Foundation, Inc.
    Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
 
 This file is part of GNU CC.
@@ -35,7 +35,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free PROTO((void *));
+#endif
 extern rtx read_rtx PROTO((FILE *));
 
 char *xmalloc PROTO((unsigned));

gcc/genattrtab.c

@@ -140,7 +140,9 @@ struct obstack *temp_obstack = &obstack2;
 /* Define this so we can link with print-rtl.o to get debug_rtx function.  */
 char **insn_name_ptr = 0;
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 static void fatal ();

gcc/genconfig.c

 /* Generate from machine description:
    - some #define configuration flags.
-   Copyright (C) 1987, 1991, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1991, 1997, 1998 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -35,7 +35,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 /* flags to determine output of machine description dependent #define's.  */

gcc/genemit.c

 /* Generate code from machine description to emit insns as rtl.
-   Copyright (C) 1987, 88, 91, 94, 95, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1987, 88, 91, 94, 95, 97, 1998 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -34,7 +34,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 char *xmalloc ();

gcc/genextract.c

 /* Generate code from machine description to extract operands from insn as rtl.
-   Copyright (C) 1987, 1991, 1992, 1993, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1987, 91, 92, 93, 97, 1998 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -35,7 +35,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 /* Names for patterns.  Need to allow linking with print-rtl.  */

gcc/genflags.c

@@ -2,7 +2,7 @@
 
    - some flags HAVE_... saying which simple standard instructions are
    available for this machine.
-   Copyright (C) 1987, 1991, 1995 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1991, 1995, 1998 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -37,7 +37,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 char *xmalloc ();

gcc/genopinit.c

@@ -36,7 +36,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 char *xmalloc ();

gcc/genoutput.c

 /* Generate code from to output assembler insns as recognized from rtl.
-   Copyright (C) 1987, 88, 92, 94, 95, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1987, 88, 92, 94, 95, 97, 1998 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -111,7 +111,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 char *xmalloc ();

gcc/genpeep.c

 /* Generate code from machine description to perform peephole optimizations.
-   Copyright (C) 1987, 1989, 1992, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1989, 1992, 1997, 1998 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -34,7 +34,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 /* While tree-walking an instruction pattern, we keep a chain

gcc/genrecog.c

@@ -61,7 +61,9 @@ struct obstack *rtl_obstack = &obstack;
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
 extern rtx read_rtx ();
 
 /* Data structure for a listhead of decision trees.  The alternatives

gcc/tlink.c

@@ -49,8 +49,12 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define obstack_chunk_free free
 
 extern char * xmalloc PARAMS((unsigned));
+#ifdef NEED_DECLARATION_FREE
 extern void free ();
+#endif
+#ifdef NEED_DECLARATION_GETENV
 extern char * getenv ();
+#endif
 
 /* Defined in collect2.c.  */
 extern int vflag, debug;