------- Comment #9 from jakub at gcc dot gnu dot org 2006-10-04 22:03 ------- --with-long-double-128 is the default on glibc 2.4+, but only in GCC 4.2. In vanilla GCC 4.1.x --with-long-double-128 isn't supported at all, those changes were added pretty late in the GCC 4.1 devel cycle and so do exist just as a separate patch (or on redhat/gcc-4_1-branch or ibm/gcc-4_1-branch).
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28701
