build: Remove configure checking for socklen_t.

* configure.ac (gl_TYPE_SOCKLEN_T): Remove.
* m4/socklen.m4: Remove.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>

1 files changed, 0 insertions, 76 deletions

diff --git a/m4/socklen.m4 b/m4/socklen.m4
deleted file mode 100644
index 251960b0..00000000
--- a/m4/socklen.m4
+++ /dev/null
@@ -1,76 +0,0 @@
-# socklen.m4 serial 11
-dnl Copyright (C) 2005-2007, 2009-2020 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Albert Chin, Windows fixes from Simon Josefsson.
-
-dnl Check for socklen_t: historically on BSD it is an int, and in
-dnl POSIX 1g it is a type of its own, but some platforms use different
-dnl types for the argument to getsockopt, getpeername, etc.:
-dnl HP-UX 10.20, IRIX 6.5, OSF/1 4.0, Interix 3.5, BeOS.
-dnl So we have to test to find something that will work.
-
-AC_DEFUN([gl_TYPE_SOCKLEN_T],
-  [AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])dnl
-   AC_CHECK_TYPE([socklen_t], ,
-     [AC_CACHE_CHECK([for socklen_t equivalent],
-        [gl_cv_socklen_t_equiv],
-        [# Systems have either "struct sockaddr *" or
-         # "void *" as the second argument to getpeername
-         gl_cv_socklen_t_equiv=
-         for arg2 in "struct sockaddr" void; do
-           for t in int size_t "unsigned int" "long int" "unsigned long int"; do
-             AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-                 [[#include <sys/types.h>
-                   #include <sys/socket.h>
-
-                   int getpeername (int, $arg2 *, $t *);]],
-                 [[$t len;
-                  getpeername (0, 0, &len);]])],
-               [gl_cv_socklen_t_equiv="$t"])
-             test "$gl_cv_socklen_t_equiv" != "" && break
-           done
-           test "$gl_cv_socklen_t_equiv" != "" && break
-         done
-         if test "$gl_cv_socklen_t_equiv" = ""; then
-           AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
-         fi
-        ])
-      AC_DEFINE_UNQUOTED([socklen_t], [$gl_cv_socklen_t_equiv],
-        [type to use in place of socklen_t if not defined])],
-     [gl_SOCKET_HEADERS])])
-
-dnl On mingw32, socklen_t is in ws2tcpip.h ('int'), so we try to find
-dnl it there too.  But on Cygwin, wc2tcpip.h must not be included.  Users
-dnl of this module should use the same include pattern as gl_SOCKET_HEADERS.
-dnl When you change this macro, keep also in sync:
-dnl   - gl_CHECK_SOCKET_HEADERS,
-dnl   - the Include section of modules/socklen.
-AC_DEFUN([gl_SOCKET_HEADERS],
-[
-/* <sys/types.h> is not needed according to POSIX, but the
-   <sys/socket.h> in i386-unknown-freebsd4.10 and
-   powerpc-apple-darwin5.5 required it. */
-#include <sys/types.h>
-#if HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#elif HAVE_WS2TCPIP_H
-# include <ws2tcpip.h>
-#endif
-])
-
-dnl Tests for the existence of the header for socket facilities.
-dnl Defines the C macros HAVE_SYS_SOCKET_H, HAVE_WS2TCPIP_H.
-dnl This macro must match gl_SOCKET_HEADERS.
-AC_DEFUN([gl_CHECK_SOCKET_HEADERS],
-  [AC_CHECK_HEADERS_ONCE([sys/socket.h])
-   if test $ac_cv_header_sys_socket_h = no; then
-     dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
-     dnl the check for those headers unconditional; yet cygwin reports
-     dnl that the headers are present but cannot be compiled (since on
-     dnl cygwin, all socket information should come from sys/socket.h).
-     AC_CHECK_HEADERS([ws2tcpip.h])
-   fi
-  ])