------- Comment #49 from hjl dot tools at gmail dot com 2009-02-06 19:15 ------- For most people, GCC_EXEC_PREFIX points to either a directory which doesn't exist or a different version of gcc. Since GCC_EXEC_PREFIX may point a directory which doesn't exist, it isn't really needed by "make check" for most people. Only very small percentage of gcc developers need GCC_EXEC_PREFIX for "make check".
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36443
