macOS Sierra patch / sed problem

[John Klos <john%ziaspace.com@localhost>]

Hi,

pkgsrc on Sierra generally works, but today I ran across a package that 
has an interesting problem. devel/libcfg+ hasn't changed in almost a year, 
and the two patches haven't changed in 11 years. However, I got:

=> Applying pkgsrc patches for libcfg+-0.7.0
**************************************
Ignoring patch file /Users/john/pkgsrc/devel/libcfg+/patches/patch-ab: 
invalid checksum
**************************************
ERROR: Patching failed due to modified or broken patch file(s):
ERROR: 	/Users/john/pkgsrc/devel/libcfg+/patches/patch-ab

Manually running bmake makepatchsum gave:

sed: RE error: illegal byte sequence

I'm using the default locale (it's unset), so any ideas why this might be 
happening?

John
--
I seriously doubt that ANY email client will ever duplicate the
functionality of Outlook. Its ability to run foreign code is unparalleled.
Even if someone can duplicate that, building a security system into Unix
to allow the email client to have unfettered access to all of the system's
resources is a daunting task in itself, and could take years to duplicate.
	- John Klos