https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108472
--- Comment #5 from Dennis Clarke <dclarke at blastwave dot org> --- (In reply to Andreas Schwab from comment #3) > You are mixing two different ada compilers: > > /opt/imed/gcc12/bin/gcc -c -g -gnatpg -gnatwns -W -Wall -I- -I. > -Iada/generated -Iada -I../../gcc-12.2.0/gcc/ada > ../../gcc-12.2.0/gcc/ada/gnat1drv.adb -o ada/gnat1drv.o > x86_64-linux-gnu-gnatbind -t -I- -I. -Iada/generated -Iada > -I../../gcc-12.2.0/gcc/ada -o b_gnat1.adb -n ada/gnat1drv.ali Brilliant! I shall dpkg --purge all other gnat/ada and then use the previously built and bootstrapped version I have in the /opt/imed directory structure. Thank you !