debian/rules uses a nonexistent Makefile target ("fatsort"), so the correct CFLAGS are being ignored. Change DEB_MAKE_BUILD_TARGET to use "all" instead of "fatsort".
debian/rules uses a nonexistent Makefile target ("fatsort"), so the correct CFLAGS are being ignored. Change DEB_MAKE_ BUILD_TARGET to use "all" instead of "fatsort".