Stephen R. van den Berg wrote:
I regularly compile with: --with-cdebug --without-rtldebug --without-valgrind --with-double-precision --with-long-int --disable-noopty-retry --with-machine-code --without-portable-bytecode -g -O2
Incidentally, on the very same system, I compile 8.1 with the exact same settings, and it compiles/runs without issues (without removing all precompiled .o files).