i2c -c --perms /usr/local/include/i2c/perms.inc regression-compile-tmp/casterr.imp
ecce8 regression-compile-tmp/casterr.c -command "(v/__label__/\m,m-2(v/ /r)0v/_imp_/km2,m3)0;%c" 2> /dev/null  # this is a temporary hack
gcc -I /home/gtoal/src/i2c/perms -o regression-compile-tmp/casterr.o -Wno-discarded-qualifiers -c regression-compile-tmp/casterr.c