building 3.5.1 on bullseye

Greetings all;
I'm using ff's webmail to post this as I lost my main drive, shot itself right between the 

eyes sometime in the night a week ago.  And a bullseye install that begins to work
has now taken 7 damned installs, which, because I'm now booting from a 500G SSD, with
a 1.9T /home made of 4 1T SSD's that take hours to format, making an expert install
take around  24 hours to the first reboot.


Since I don't yet have the new kmail5 working, I am crippled for email so please
bear with me as I try to recover, starting with bare metal.


I unpacked /home/amanda, and I am trying to build and install it, but several minutes
into the build, I get an error exit:


/usr/bin/ld: ./.libs/libtestutils.a(testutils.o):/home/amanda/amanda-3.5.1/common-src/testutils.h:78: multiple definition of `tu_debugging_enabled'; amflock-test.o:/home/amanda/amanda-3.5.1/common-src/testutils.h:78: first defined here
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:2333: amflock-test] Error 1
make[3]: Leaving directory '/home/amanda/amanda-3.5.1/common-src'
make[2]: *** [Makefile:2133: all] Error 2
make[2]: Leaving directory '/home/amanda/amanda-3.5.1/common-src'
make[1]: *** [Makefile:1718: all-recursive] Error 1
make[1]: Leaving directory '/home/amanda/amanda-3.5.1'
make: *** [Makefile:1642: all] Error 2



Can anyone tell me what I need to install, or do to fix this?
A patch I'm missing perhaps?


Thank you all.


Gene Heskett