Dear friends who have worked on the util-linux source code, Thank you for the util-linux package. I'm an M.I.T. graduate, who has been compiling linux source code for almost as long it has existed. A problem has crept into the util-linux source code: When I run its "configure" script, it eventually fails, reporting error: C++ preprocessor "/lib/cpp" fails sanity check The lack of sanity is not in cpp, but in the configure script, which calls cpp with a command line tens of thousands of characters long, which consists almost entirely of thousands of repetitions of the command-line arguments "-D _GNU_SOURCE". I am looking into a way to fix this, but perhaps someone who is already familiar with the source code can tell me immediately how this might be fixed? If someone has a chance to email me, I'd be pleased to hear from you. I thank you kindly for reading. Very truly yours, Lyman Opie lyman@xxxxxxxxxxxx