rename from chdir.m4

diff --git a/m4/chdir-long.m4 b/m4/chdir-long.m4
new file mode 100644 (file)
index 0000000..32c24c7
--- /dev/null
+++ b/m4/chdir-long.m4
@@ -0,0 +1,24 @@
+#serial 1
+
+# Written by Jim Meyering.
+# Use Gnulib's robust replacement chdir function.
+# It can handle arbitrarily long directory names, which means
+# that when it is given the name of an existing directory, it
+# never fails with ENAMETOOLONG.
+#
+# It still fails with ENAMETOOLONG if the specified directory
+# name contains a component that would provoke such a failure
+# all by itself (e.g. if the component is longer than PATH_MAX
+# on systems that define PATH_MAX).
+
+AC_DEFUN([gl_FUNC_CHDIR_LONG],
+[
+  gl_PREREQ_CHDIR_LONG
+])
+
+AC_DEFUN([gl_PREREQ_CHDIR_LONG],
+[
+  AM_STDBOOL_H
+  gl_FUNC_MEMPCPY
+  gl_FUNC_OPENAT
+])