Clean up extern decls a bit.

* configure.ac (WERROR_CFLAGS): Don't disable -Wnested-externs.
While we're at it, don't disable -Wlogical-op either.
* src/bytecode.c: Include blockinput.h and keyboard.h rather
than rolling their APIs by hand.
* src/emacs.c: Include regex.h and rely on its and lisp.h's API
rather than rolling them by hand.
* src/lastfile.c: Include lisp.h, to check this file's API.
* src/lisp.h (lisp_eval_depth, my_edata, my_endbss, my_endbss_static):
New decls.
* src/regex.h (re_max_failures): New decl.
* src/unexcw.c, src/unexmacosx.c, src/unexw32.c:
Rely on lisp.h's API rather than rolling it by hand.
* src/vm-limit.c (__after_morecore_hook, __morecore, real_morecore):
Declare at top level, to pacify GCC -Wnested-externs.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/bytecode.c b/src/bytecode.c
index ca6681f21e9..d3c8b470cc3 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -36,8 +36,10 @@ by Hallvard:
 #include <config.h>
 
 #include "lisp.h"
+#include "blockinput.h"
 #include "character.h"
 #include "buffer.h"
+#include "keyboard.h"
 #include "syntax.h"
 #include "window.h"
 
@@ -1106,9 +1108,6 @@ exec_byte_code (Lisp_Object bytestr, Lisp_Object vector, Lisp_Object maxdepth,
           goto pushhandler;
         CASE (Bpushconditioncase): /* New in 24.4.  */
           {
-            extern EMACS_INT lisp_eval_depth;
-            extern int poll_suppress_count;
-            extern int interrupt_input_blocked;
             struct handler *c;
             Lisp_Object tag;
             int dest;