Apologies for submitting this *blindly*. Feel that this issue is /beyond the scope/ of *gnu.org*.
Platform is: Linux raspbari26 4.19.118-Re4son-v8+ #1 SMP PREEMPT Wed May 6 12:44:21 UTC 2020 aarch64 GNU/Linux Attempting to build Nagios plugin from source (_https://nagios-plugins.org/download/nagios-plugins-2.__3.3__.tar.gz _ <https://nagios-plugins.org/download/nagios-plugins-2.3.3.tar.gz>) with the following command under current Kali Linux on Raspberry Pi: $ ./configure checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /usr/bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking whether to disable maintainer-specific portions of Makefiles... yes checking build system type... build-aux/config.guess: unable to guess system type This script, last modified 2009-11-20, has failed to recognize the operating system you are using. It is advised that you download the most up to date version of the config scripts from http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD and http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD If the version you run (build-aux/config.guess) is already up to date, please send the following data and any information you think might be pertinent to <config-patches@gnu.org> in order to provide the needed information to handle your system. config.guess timestamp = 2009-11-20 uname -m = aarch64 uname -r = 4.19.118-Re4son-v8+ uname -s = Linux uname -v = #1 SMP PREEMPT Wed May 6 12:44:21 UTC 2020 /usr/bin/uname -p = unknown /bin/uname -X = hostinfo = /bin/universe = /usr/bin/arch -k = /bin/arch = aarch64 /usr/bin/oslevel = /usr/convex/getsysinfo = UNAME_MACHINE = aarch64 UNAME_RELEASE = 4.19.118-Re4son-v8+ UNAME_SYSTEM = Linux UNAME_VERSION = #1 SMP PREEMPT Wed May 6 12:44:21 UTC 2020 configure: error: cannot guess build type; you must specify one