http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47591
--- Comment #2 from Michael Haubenwallner <michael.haubenwallner at salomon dot at> 2011-09-09 15:32:53 UTC --- Created attachment 25235 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25235 output of 'gmake install' for gcc-4.6.1, using xlc v6 on aix5.3 Same here, however with gcc-4.6.1 (as well as gcc-4.5.3) on powerpc-ibm-aix5.3.0.0 (gmp configured with ABI=32). As xlc (used as cc) doesn't understand -print-multi-os-directory, it does print its manpage to stdout, passed to 'mkdir' as arguments. Luckily I've not done the 'make install' as root, otherways I would have something like a new directory "/dev/null." now. So please take into account that "mkdir `cc --help`" gets run with AIX xlc. Thank you! BTW: Detecting CC="cc -qlanglvl=extc89" exposed another (minor) problem in the toplevel Makefile, eventually setting LDFLAGS="-Wl,-bbigtoc" when using gcc as host compiler - see the first two lines in this output file for the results. However, this doesn't lead to any build error.