Tag
Hash :
943f2fbf
Author :
Date :
2004-02-15T21:14:23
* m4/mkdirp.m4: Use `mkdir -p' only with GNU mkdir, because Solaris 8's mkdir is not thread-safe. * lib/mkinstalldirs: Likewise. * lib/install-sh: Abort when mkdir fails to create a directory. Report from Nathanael Nerode.
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# AM_PROG_MKDIR_P
# ---------------
# Check whether `mkdir -p' is supported, fallback to mkinstalldirs otherwise.
# Copyright (C) 2003, 2004 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
# 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
# Keeping the `.' argument allows $(mkdir_p) to be used without
# argument. Indeed, we sometimes output rules like
# $(mkdir_p) $(somedir)
# where $(somedir) is conditionally defined.
# (`test -n '$(somedir)' && $(mkdir_p) $(somedir)' is a more
# expensive solution, as it forces Make to start a sub-shell.)
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])])