On Tue, 26 May 2020 05:40:55 +0100, David Taylor
 declaimed the following:


>
>Thanks, Stephen.  I'm referring to the Raspberry Pi 1B's processor, but
>with the Buster OS installed.  However, I shouldn't need to delve into
>the references you've kindly given to get a simple C program working
>when compiling and running on the 1B.

 Out of curiosity, what FLOATING POINT option are you specifying?

https://wiki.debian.org/RaspberryPi (applies to pure Debian, mostly)
"""
Raspberry Pi 1 (A, B, A+, B+, Zero, Zero W)

The systems now known as Raspberry Pi model 1 models A and B were announced
in February 2012. This family was expanded by very similar models A+ and
B+. In 2015, the Zero model was announced, using the same CPU as the 1
family but with a smaller form factor, followed by the Zero W, which adds
wireless connectivity.

The first generation Raspberry systems work using Debian armel. The Zero
uses the same SoC/CPU as the first version, so they should function
identically.
"""

Though confusingly...

"""
Debian and Raspbian

The most often used distribution across all raspberries is Raspbian. This
is, first of all, for historical reasons (booting a mainline Debian kernel
was not supported on Raspberries until late 2018), but also because of
other non-free components that are shipped as part of Raspbian (such as
Oracle Java and Wolfram Mathematica).

Raspbian builds a single image for all of the Raspberry families, so you
will get an armhf 32-bit, hard floating-point system, but built for the
ARMv6 ISA (with VFP2), unlike Debian's ARMv7 ISA (with VFP3) port.
"""



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