commit 682fe52f9ec2d1098ff705683b877d9e948ecdb0
parent fe15ec84bf4543c5dba1305cec86fb9972854be1
Author: Nils Durner <durner@gnunet.org>
Date: Tue, 29 May 2007 20:50:25 +0000
add
Diffstat:
| A | m4/mkdirp.m4 | | | 63 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 63 insertions(+), 0 deletions(-)
diff --git a/m4/mkdirp.m4 b/m4/mkdirp.m4
@@ -0,0 +1,63 @@
+## -*- Autoconf -*-
+# Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_MKDIR_P
+# ---------------
+# Check whether `mkdir -p' is supported, fallback to mkinstalldirs otherwise.
+#
+# Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
+# created by `make install' are always world readable, even if the
+# installer happens to have an overly restrictive umask (e.g. 077).
+# This was a mistake. There are at least two reasons why we must not
+# use `-m 0755':
+# - it causes special bits like SGID to be ignored,
+# - it may be too restrictive (some setups expect 775 directories).
+#
+# Do not use -m 0755 and let people choose whatever they expect by
+# setting umask.
+#
+# We cannot accept any implementation of `mkdir' that recognizes `-p'.
+# Some implementations (such as Solaris 8's) are not thread-safe: if a
+# parallel make tries to run `mkdir -p a/b' and `mkdir -p a/c'
+# concurrently, both version can detect that a/ is missing, but only
+# one can create it and the other will error out. Consequently we
+# restrict ourselves to GNU make (using the --version option ensures
+# this.)
+AC_DEFUN([AM_PROG_MKDIR_P],
+[if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
+ # We used to keeping the `.' as first argument, in order to
+ # allow $(mkdir_p) to be used without argument. As in
+ # $(mkdir_p) $(somedir)
+ # where $(somedir) is conditionally defined. However this is wrong
+ # for two reasons:
+ # 1. if the package is installed by a user who cannot write `.'
+ # make install will fail,
+ # 2. the above comment should most certainly read
+ # $(mkdir_p) $(DESTDIR)$(somedir)
+ # so it does not work when $(somedir) is undefined and
+ # $(DESTDIR) is not.
+ # To support the latter case, we have to write
+ # test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
+ # so the `.' trick is pointless.
+ mkdir_p='mkdir -p --'
+else
+ # On NextStep and OpenStep, the `mkdir' command does not
+ # recognize any option. It will interpret all options as
+ # directories to create, and then abort because `.' already
+ # exists.
+ for d in ./-p ./--version;
+ do
+ test -d $d && rmdir $d
+ done
+ # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
+ if test -f "$ac_aux_dir/mkinstalldirs"; then
+ mkdir_p='$(mkinstalldirs)'
+ else
+ mkdir_p='$(install_sh) -d'
+ fi
+fi
+AC_SUBST([mkdir_p])])
