- update to 20211018:
* fixes related to TCP timeout handling
* enhancement: support setting config file via env var MBUFFERRC
* documentation update
* make TCPTimeout=0 disable the TCP timeout
* changed default TCP timeout from 10s to 100s
* TCP timeout now can be give with suffixes ms,s,min,h
* documented option for TCP timeout
* enhancement: accept IPv6 addresses in square bracket format
* enhancement: more detailed warning message for connect failures
* work around Solaris default old mercurial and incompatible sed
* removed cancel after join for reader thread
* updated install-sh
* mbuffer.1 has outdated version tag
* fix: hash algos should not suppress stdout
* enhancement: added option --no-direct to disable use of O_DIRECT
* defaults: raised default TCP timeout to 10ms for WAN connections
* fix: leave TCP buffer size untouched if not set
* enhancement: add option to set TCP timeout
* performance optimization: use recv with MSG_WAITALL instead of read
* configure fix: look for objdump also with target prefix
* testing: make sure to use gtar for testing to avoid unexpected failures
* portability: NetBSD compatibility fix
* build enhancement: added dependency calculation for make
* build enhancement: automatic version string generation
* configure fix for some powerpc toolchains
* update config.sub and config.guess
* added option to perform direct I/Os on temporary file
* autoadjust dependent parameters
* human readable buffer size information instead of kiB