Log message:
m4: Improve macOS patch compatibility.

This should now work across all versions, and fix the build problem
raised in NetBSD/pkgsrc#158.  Tested locally against the 10.4 SDK.

From Jonathan Perkin <jperkin@smartos.org>
via drecklypkg commit 05d082ecd383bb9abfeebc219de0ff7ee50645c8

Log message:
devel/m4: Fix build on QNX

Log message:
Use older register names on MacOS X 10.4 "Tiger", taken from MacPorts

Log message:
m4: fix building on sparcv8

from John D. Baker in PR pkg/56498

Log message:
archivers: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

Could not be committed due to merge conflict:
devel/py-traitlets/distinfo

The following distfiles were unfetchable (note: some may be only fetched
conditionally):

./devel/pvs/distinfo pvs-3.2-solaris.tgz
./devel/eclipse/distinfo eclipse-sourceBuild-srcIncluded-3.0.1.zip

Log message:
devel: Remove SHA1 hashes for distfiles

Log message:
m4: remove vax patch that is not needed anymore

jklos@ ok

Log message:
m4: be explicit about --disable-nls

Log message:
m4: update to 1.4.19.

* Noteworthy changes in release 1.4.19 (2021-05-28) [stable]

** A number of portability improvements inherited from gnulib, including
   the ability to perform stack overflow detection on more platforms
   without linking to GNU libsigsegv.

* Noteworthy changes in release 1.4.18d (2021-05-11) [beta]

** A number of portability improvements inherited from gnulib.

* Noteworthy changes in release 1.4.18b (2021-05-07) [beta]

** The symbol hash table now defaults to 65537 buckets instead of 509, as
   modern systems have enough memory to benefit from fewer hash collisions
   by default.

** Introduce the use of gettext, with the immediate benefit of nicer
   UTF-8 author names.  Over time, more translations of program messages
   will become available.

** A number of portability improvements inherited from gnulib.

Log message:
devel/m4: Fix compilation on QNX