.*-.*-gnu-gnu.* DEFAULT GLIBC_2.2.6 .*-.*-gnu-gnu.* libm=6 # libmachuser.so.1 corresponds to mach/*.defs as of Utah's UK22 release. .*-.*-gnu-gnu.* libmachuser=1 # libhurduser.so.0.3 corresponds to hurd/*.defs as of 11 June 2002. .*-.*-gnu-gnu.* libhurduser=0.3 # libc.so.0.3 is the first Hurd libc using libio. .*-.*-gnu-gnu.* libc=0.3