X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=config%2Finstall-sh;h=e4160c991dc958a11b89654e365c72a13639f6b2;hb=e3bd6e57b7544e9dd5bd560f369971b20c419671;hp=040ebc8866dfbc0acfcc2e25776c7c86a793459e;hpb=f70fab5a395c05a3653897acc8baf8d87031b4ee;p=gnulib.git

diff --git a/config/install-sh b/config/install-sh
index 040ebc886..e4160c991 100755
--- a/config/install-sh
+++ b/config/install-sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2004-01-12.10
+scriptversion=2004-04-01.17
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -214,7 +214,7 @@ do
   # Skip lots of stat calls in the usual case.
   if test ! -d "$dstdir"; then
     defaultIFS='
-  	'
+	 '
     IFS="${IFS-$defaultIFS}"
 
     oIFS=$IFS
@@ -228,7 +228,13 @@ do
     while test $# -ne 0 ; do
       pathcomp=$pathcomp$1
       shift
-      test -d "$pathcomp" || $mkdirprog "$pathcomp"
+      if test ! -d "$pathcomp"; then
+        $mkdirprog "$pathcomp" || lasterr=$?
+	# mkdir can fail with a `File exist' error in case several
+	# install-sh are creating the directory concurrently.  This
+	# is OK.
+	test ! -d "$pathcomp" && { (exit ${lasterr-1}); exit; }
+      fi
       pathcomp=$pathcomp/
     done
   fi
@@ -274,26 +280,35 @@ do
       && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
       && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
 
-    # Now remove or move aside any old file at destination location.  We
-    # try this two ways since rm can't unlink itself on some systems and
-    # the destination file might be busy for other reasons.  In this case,
-    # the final cleanup might fail but the new file should still install
-    # successfully.
-    {
-      if test -f "$dstdir/$dstfile"; then
-        $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
-        || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
-        || {
-  	  echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
-  	  (exit 1); exit
-        }
-      else
-        :
-      fi
-    } &&
-
     # Now rename the file to the real destination.
-    $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
+    { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
+      || {
+	   # The rename failed, perhaps because mv can't rename something else
+	   # to itself, or perhaps because mv is so ancient that it does not
+	   # support -f.
+
+	   # Now remove or move aside any old file at destination location.
+	   # We try this two ways since rm can't unlink itself on some
+	   # systems and the destination file might be busy for other
+	   # reasons.  In this case, the final cleanup might fail but the new
+	   # file should still install successfully.
+	   {
+	     if test -f "$dstdir/$dstfile"; then
+	       $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
+	       || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
+	       || {
+		 echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
+		 (exit 1); exit
+	       }
+	     else
+	       :
+	     fi
+	   } &&
+
+	   # Now rename the file to the real destination.
+	   $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
+	 }
+    }
   fi || { (exit 1); exit; }
 done