http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51844
Sylpheed <typesylph at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |typesylph at gmail dot com --- Comment #5 from Sylpheed <typesylph at gmail dot com> --- Please try these patches for trunk(4.9.0). 1. gcc/gcc.c line 2548 < if (sysroot_len > 0 --- > if (sysroot_len > 1 2. gcc/incpath.c line 182 < if (sysroot_len > 0 && sysroot[sysroot_len - 1] == DIR_SEPARATOR) --- > if (sysroot_len > 1 && sysroot[sysroot_len - 1] == DIR_SEPARATOR) There patch is for 'host-compiling' with '--withsysroot=/'. Anyother promrems defferent env('cross-compiling') the other problem may be.