.

diff --git a/m4/mmap-stack.m4 b/m4/mmap-stack.m4
deleted file mode 100644 (file)
index cc7e801..0000000
--- a/m4/mmap-stack.m4
+++ /dev/null
@@ -1,30 +0,0 @@
-#serial 1
-# Arrange to define HAVE_MMAP_STACK and to compile mmap-stack.c
-# if there is sufficient support.
-# From Jim Meyering
-
-AC_DEFUN([AC_SYS_MMAP_STACK],
-[
-  # prerequisites
-  AC_REQUIRE([AC_FUNC_MMAP])
-  AC_CHECK_HEADERS_ONCE(sys/mman.h ucontext.h stdarg.h)
-  AC_CHECK_FUNCS_ONCE(getcontext makecontext setcontext)
-
-  # For now, require tmpfile. FIXME: if there's a system with working mmap
-  # and *context functions yet that lacks tmpfile, we can provide a replacement.
-  AC_CHECK_FUNCS_ONCE(tmpfile)
-
-  ac_i=$ac_cv_func_tmpfile
-  ac_i=$ac_i:$ac_cv_func_getcontext
-  ac_i=$ac_i:$ac_cv_func_makecontext
-  ac_i=$ac_i:$ac_cv_func_setcontext
-  ac_i=$ac_i:$ac_cv_func_mmap_fixed_mapped
-
-  if test $ac_i = yes:yes:yes:yes:yes; then
-    AC_LIBOBJ(mmap-stack)
-    AC_DEFINE(HAVE_MMAP_STACK, 1,
-      [Define to 1 if there is sufficient support (mmap, getcontext,
-       makecontext, setcontext) for running a process with mmap'd
-       memory for its stack.])
-  fi
-])