------- Comment #6 from pinskia at gcc dot gnu dot org 2008-10-09 23:15 ------- -B is documented on http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Directory-Options.html:
-Bprefix This option specifies where to find the executables, libraries, include files, and data files of the compiler itself. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37786
