Assume C99 or later.

* lib/stdarg.in.h, lib/stdbool.in.h, m4/stdarg.m4, m4/stdbool.m4:
Remove.
* configure.ac (_AC_PROG_CC_C89): Define a dummy, to keep 'configure'
smaller.
(gl_PROG_CC_C99): Use this to get C99 or later.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* admin/merge-gnulib (GNULIB_MODULES): Remove stdarg, stdbool.
(GNULIB_TOOL_FLAGS): Avoid stdarg, stdbool.
* doc/lispref/internals.texi (C Dialect): Document this.
* etc/NEWS: Document this.
* nt/gnulib.mk: Remove stdarg and stdbool modules.
* src/bytecode.c (B__dummy__): Remove.
* src/conf_post.h (bool_bf) [!NS_IMPL_GNUSTEP]: Use bool.
(FLEXIBLE_ARRAY_MEMBER): Now always empty.
* src/dbusbind.c (XD_DEBUG_MESSAGE) [!DBUS_DEBUG]:
* src/regex.c (DEBUG_PRINT): Assume varargs macros.
* src/lisp.h (DEFUN_FUNCTION_INIT): Remove.  All uses now assume C99.

Fixes: debbugs:17487

1 files changed, 1 insertions, 5 deletions

diff --git a/src/dbusbind.c b/src/dbusbind.c
index 8ebc56c72c4..8997e01b068 100644
--- a/src/dbusbind.c
+++ b/src/dbusbind.c
@@ -142,10 +142,7 @@ static bool xd_in_read_queued_messages = 0;
   } while (0)
 
 #else /* !DBUS_DEBUG */
-# if __STDC_VERSION__ < 199901
-#  define XD_DEBUG_MESSAGE (void) /* Pre-C99 compilers cannot debug.  */
-# else
-#  define XD_DEBUG_MESSAGE(...)                                         \
+# define XD_DEBUG_MESSAGE(...)                                          \
   do {                                                                  \
     if (!NILP (Vdbus_debug))                                            \
       {                                                                 \
@@ -154,7 +151,6 @@ static bool xd_in_read_queued_messages = 0;
         message ("%s: %s", __func__, s);                                \
       }                                                                 \
   } while (0)
-# endif
 # define XD_DEBUG_VALID_LISP_OBJECT_P(object)
 #endif