error running makesum

[Lara Blatchford]

Hello - I'm attempting to build the latest rev of the file package (5.18) on
Solaris 10.
When I run mgar makesum, I get an error saying md5sum is not found, though
the
application is installed:

-bash-4.3$ pwd
/export/home/lara/opencsw/file/trunk
-bash-4.3$ mgar makesum
$md5sum is [md5sum]
[===== NOW BUILDING: file-5.18 =====]
        [prerequisite] complete for file.
        [fetch] complete for file.
/bin/sh: md5sum: not found
Checksums made for file-5.18.tar.gz
-bash-4.3$
-bash-4.3$
-bash-4.3$ which md5sum
/opt/csw/gnu/md5sum
-bash-4.3$

Note above that I added some debug to v2/gar.mk to dump the value of the
md5sum
variable, and it's set to the binary name ($md5sum is [md5sum])

I tried editing v2/gar.mak to set the md5sum variable to the full path to
the binary as
follows:

md5sum ?= $(if $(filter no%,$(shell which md5sum)),gmd5sum,$(shell which
md5sum))

This time the checksum file is created successfully:

-bash-4.3$ mgar makesum
$md5sum is [/opt/csw/gnu/md5sum]
[===== NOW BUILDING: file-5.18 =====]
        [prerequisite] complete for file.
        [fetch] complete for file.
Checksums made for file-5.18.tar.gz
d420d8f2990cd344673acfbf8d76ff5a  file-5.18.tar.gz
-bash-4.3$ pwd
/export/home/lara/opencsw/file/trunk
-bash-4.3$ date
Fri Oct 21 15:27:49 EDT 2016
-bash-4.3$ ls -l checksums
-rw-r--r-- 1 lara staff 51 Oct 21 15:27 checksums
-bash-4.3$ cat checksums
d420d8f2990cd344673acfbf8d76ff5a  file-5.18.tar.gz
-bash-4.3$

Is this a bug or could this somehow be an issue with my environment?  I note
that v2/gar.mk was modified 5 days ago.

Regards, 
Lara Blatchford