native compilation version on AArch64 running Debian 9.9

[Eric S Fraga <e.fraga@ucl.ac.uk>]

Hello,

yesterday, I cloned and built Emacs with native compilation on my
desktop running Debian testing.  Went smoothly and it works very nicely
indeed!

So today I thought I would try to do the same on a small palmtop
computer running a somewhat older version of Debian (9.9) and,
obviously, a different architecture.  In this case, the configure step
fails with the error message (from the log):

,----
| configure:16269: checking for gcc_jit_context_acquire in -lgccjit
| configure:16294: gcc -o conftest  -g3 -O2 -pthread [...] conftest.c -lgccjit  -lX11   -lcairo >&5 
| /usr/bin/ld: cannot find -lgccjit
| collect2: error: ld returned 1 exit status
`----

If I look at ldconfig on both systems, on the desktop I get the
following:

libgccjit.so.0 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgccjit.so.0

and on the palmtop:

libgccjit.so.0 (libc6,AArch64) => /usr/lib/aarch64-linux-gnu/libgccjit.so.0

The versions of the gccjit packages are different (8 on palmtop, 10 on
desktop) but the library is there, including the .so.0.0.1 file linked
to from the above in both cases.

Any suggestions?  My wee palmtop would love jit compilation Emacs!

Thank you,
eric

-- 
Eric S Fraga via Emacs 28.0.50 & org 9.4.4 on Debian bullseye/sid