Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:

   1. Rtems contains some perl scripts that use hard-coded paths to
      /usr/bin/perl or /usr/local/bin/perl I have already fixed these
      problems by adding some checks to configure.in.   While doing this,
      I also cleaned up some more autoconf related problems for generating
      shell scripts.  This patch might seem a bit scary to you, but I am
      quite confident it won't break something (I've been testing it for
      almost a week now, however it might introduce typos for a limited
      number configurations I don't have access to - But it shouldn't be
      a problem for you to test them :-).

   I expect to get this finished tonight, hence you will very likely
   have the patch when you get up tomorrow.

   Changes:

   * Check for PERL and disable all PERL scripts if perl wasn't found.
   * Generate all KSHELL-scripts with autoconf instead of make-script
   * Automatic dependency handling for autoconf generated KSHELL or PERL
     scripts (make/rtems.cfg)

   Notes:
   * this patch contains new files and deletes some other files.
   * The patch is relative to rtems-4.0.0-beta4 with my previous
     rtems-rc-981014-1.diff patch applied.

   Testing:
      I tested it with sh-rtems and posix under linux. Now all targets
      which are touched by this patch and which are not used while building
      for sh-rtems and posix still need to be tested. AFAIS, only the
      sparc/erc32 BSP should be affected by this criterion. And if you
      like to, you should also consider testing it on a Cygwin32 and a
      Solaris host for one arbitrary BSP.

1 files changed, 41 insertions, 0 deletions

diff --git a/tools/build/scripts/unlock-directory.in b/tools/build/scripts/unlock-directory.in
new file mode 100644
index 0000000000..c63ceff881
--- /dev/null
+++ b/tools/build/scripts/unlock-directory.in
@@ -0,0 +1,41 @@
+#!@KSH@
+#
+# $Id$
+#
+# Unlock a directory processed by lock_directory
+#
+
+# is a particular command available on this machine?
+#
+cmd_avail()
+{
+    set -- `type $1 2>&1`
+    if [ "$2" = "not" -a "$3" = "found" ] || [ "$3" = "not" -a "$4" = "found" ]
+    then
+        return 1
+    else
+        return 0
+    fi
+}
+
+unlock_directory() {
+    ul_dir=$1/.  		# get any symlink out of the way using '.'
+    if [ -d $ul_dir ]
+    then
+        find $ul_dir -type d ! -perm -0222 -print | $XARGS -t chmod +w
+    fi
+}
+
+# Use gnu xargs if available; faster, more reliable in general
+XARGS=xargs
+cmd_avail gxargs && XARGS=gxargs
+
+for dir
+do
+    unlock_directory $dir
+done
+
+# Local Variables: ***
+# mode:ksh ***
+# End: ***
+