[PATCH 14/16] gdbserver: remove fallback declarations of perror, vasprintf and vsnprintf

[Simon Marchi <simon.marchi@efficios.com>]

server.h declares perror, vasprintf and vsnprintf if configure did not
find a declaration for them.  perror and vsnprintf are standard C++,
and libiberty.h already declares vasprintf and vsnprintf when the
system doesn't.

Remove the fallback declarations from server.h, and the
AC_CHECK_DECLS call from configure.ac.

Regenerate config.in and configure.

Change-Id: I6afe4a6fa610a37599b7b7d28628dea43b584892
---
 gdbserver/config.in    |  4 ----
 gdbserver/configure    | 32 --------------------------------
 gdbserver/configure.ac |  2 --
 gdbserver/server.h     | 13 -------------
 4 files changed, 51 deletions(-)

diff --git a/gdbserver/config.in b/gdbserver/config.in
index d0b609003800..7aae2f7398b5 100644
--- a/gdbserver/config.in
+++ b/gdbserver/config.in
@@ -58,10 +58,6 @@
 /* Define to 1 if you have the declaration of `ffs', and to 0 if you don't. */
 #undef HAVE_DECL_FFS
 
-/* Define to 1 if you have the declaration of `perror', and to 0 if you don't.
-   */
-#undef HAVE_DECL_PERROR
-
 /* Define to 1 if you have the declaration of `snprintf', and to 0 if you
    don't. */
 #undef HAVE_DECL_SNPRINTF
diff --git a/gdbserver/configure b/gdbserver/configure
index d695c6191e33..9555b15bd725 100755
--- a/gdbserver/configure
+++ b/gdbserver/configure
@@ -13228,38 +13228,6 @@ _ACEOF
 
 
 
-ac_fn_c_check_decl "$LINENO" "perror" "ac_cv_have_decl_perror" "$ac_includes_default"
-if test "x$ac_cv_have_decl_perror" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_PERROR $ac_have_decl
-_ACEOF
-ac_fn_c_check_decl "$LINENO" "vasprintf" "ac_cv_have_decl_vasprintf" "$ac_includes_default"
-if test "x$ac_cv_have_decl_vasprintf" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_VASPRINTF $ac_have_decl
-_ACEOF
-ac_fn_c_check_decl "$LINENO" "vsnprintf" "ac_cv_have_decl_vsnprintf" "$ac_includes_default"
-if test "x$ac_cv_have_decl_vsnprintf" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_VSNPRINTF $ac_have_decl
-_ACEOF
-
-
 ac_fn_c_check_type "$LINENO" "socklen_t" "ac_cv_type_socklen_t" "#include <sys/types.h>
 #if HAVE_SYS_SOCKET_H
 # include <sys/socket.h>
diff --git a/gdbserver/configure.ac b/gdbserver/configure.ac
index 1f461fa05727..2ae3e1c6e494 100644
--- a/gdbserver/configure.ac
+++ b/gdbserver/configure.ac
@@ -102,8 +102,6 @@ LIBS="$old_LIBS"
 
 libiberty_INIT
 
-AC_CHECK_DECLS([perror, vasprintf, vsnprintf])
-
 AC_CHECK_TYPES(socklen_t, [], [],
 [#include <sys/types.h>
 #if HAVE_SYS_SOCKET_H
diff --git a/gdbserver/server.h b/gdbserver/server.h
index bbba3650de7d..1a9e6ef62f8a 100644
--- a/gdbserver/server.h
+++ b/gdbserver/server.h
@@ -33,19 +33,6 @@ static_assert (sizeof (CORE_ADDR) >= sizeof (void *));
 
 #include "gdbsupport/version.h"
 
-#if !HAVE_DECL_PERROR
-#ifndef perror
-extern void perror (const char *);
-#endif
-#endif
-
-#if !HAVE_DECL_VASPRINTF
-extern int vasprintf(char **strp, const char *fmt, va_list ap);
-#endif
-#if !HAVE_DECL_VSNPRINTF
-int vsnprintf(char *str, size_t size, const char *format, va_list ap);
-#endif
-
 #ifdef IN_PROCESS_AGENT
 #  define PROG "ipa"
 #else
-- 
2.56.0