1 files changed, 0 insertions, 41 deletions
diff --git a/m4/ioctl.m4 b/m4/ioctl.m4
deleted file mode 100644
index 5a31a396..00000000
--- a/m4/ioctl.m4
+++ /dev/null
@@ -1,41 +0,0 @@
-# ioctl.m4 serial 4
-dnl Copyright (C) 2008-2014 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.
-
-AC_DEFUN([gl_FUNC_IOCTL],
-[
-  AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])
-  AC_REQUIRE([gl_HEADER_SYS_SOCKET])
-  HAVE_IOCTL=1
-  if test "$ac_cv_header_winsock2_h" = yes; then
-    dnl Even if the 'socket' module is not used here, another part of the
-    dnl application may use it and pass file descriptors that refer to
-    dnl sockets to the ioctl() function. So enable the support for sockets.
-    HAVE_IOCTL=0
-  else
-    AC_CHECK_FUNCS([ioctl])
-    dnl On glibc systems, the second parameter is 'unsigned long int request',
-    dnl not 'int request'. We cannot simply cast the function pointer, but
-    dnl instead need a wrapper.
-    AC_CACHE_CHECK([for ioctl with POSIX signature],
-      [gl_cv_func_ioctl_posix_signature],
-      [AC_COMPILE_IFELSE(
-         [AC_LANG_PROGRAM(
-            [[#include <sys/ioctl.h>]],
-            [[extern
-              #ifdef __cplusplus
-              "C"
-              #endif
-              int ioctl (int, int, ...);
-            ]])
-         ],
-         [gl_cv_func_ioctl_posix_signature=yes],
-         [gl_cv_func_ioctl_posix_signature=no])
-      ])
-    if test $gl_cv_func_ioctl_posix_signature != yes; then
-      REPLACE_IOCTL=1
-    fi
-  fi
-])