Trouble with 'make prefix=/usr info'

Hi,

I'm getting the following error when I make the info target:

$ make prefix=/usr info
make -C Documentation info
make[1]: Entering directory `/local/software/git-1.6.5.7/Documentation'
make[2]: Entering directory `/local/software/git-1.6.5.7'
make[2]: `GIT-VERSION-FILE' is up to date.
make[2]: Leaving directory `/local/software/git-1.6.5.7'
    DB2TEXI user-manual.texi
Usage: jw [<options>] <sgml_file>
where <options> are:
  -f|--frontend <frontend>:      Specify the frontend (source format)
                                 (default is docbook)
  -b|--backend <backend>:        Specify the backend (destination format)
                                 (default is html)
  -c|--cat <file>:               Specify an extra SGML open catalog
  -n|--nostd:                    Do not use the standard SGML open catalogs
  -d|--dsl <file>|default|none:  Specify an alternate style sheet
                                 (default is to use the default stylesheet)
  -l|--dcl <file>:               Specify an alternate SGML declaration
                                 (usual ones like xml.dcl get detected
automatically)
  -s|--sgmlbase <path>:          Change base directory for SGML distribution
                                 (usually /usr/share/sgml)
  -p|--parser <program>:         Specify the parser if several are installed
                                  (jade or openjade)
  -o|--output <directory>:       Set output directory
  -u|--nochunks:                 Output only one big file
                                 (overrides the stylesheet settings)
  -i|--include <section>:        Specify a SGML marked section to include
                                 (should be marked as "ignore" in the SGML text)
  -w|--warning <warning_type>|list: Control warnings or display the allowed
warning types
  -e|--errors <error_type>|list: Control errors or display the allowed error types
  -h|--help:                     Print this help message and exit
  -V <variable[=value]>:         Set a variable
  -v|--version:                  Print the version and exit
make[1]: *** [user-manual.texi] Error 1
make[1]: Leaving directory `/local/software/git-1.6.5.7/Documentation'
make: *** [info] Error 2

I can see that the error is likely related to the fact that it enters the Documentation directing, then exits the Documentation directory, and then tries to build the user-manual.texi file in the root directory (however, that file is in the Documentation directory, which it just left). I've tried to track down and change where it exits the Documentation directory, but I've had no success.

I would appreciate any recommendations you might have. I've already been able to install git, but I couldn't install the 'info' target because of this error.

Thanks, Craig