https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69012
--- Comment #10 from Paul Hua <paul.hua.gm at gmail dot com> --- (In reply to Bernd Edlinger from comment #9) > (In reply to Paul Hua from comment #8) > > (In reply to Bernd Edlinger from comment #6) > > > (In reply to Paul Hua from comment #5) > > > > Created attachment 37115 [details] > > > > building command > > > > > > I'm unable to reproduce. > > > What is your cross-compiler command line? > > > > > and how exactly did you configure your cross compiler? I'm compared the diff between your configure and mine, find something that my configure specify the --with-build-time-tools=xxx. If don't specify the --with-build-time-tools=xxx the gcc(both r225249 and r225260) can be build successfully. This is the reason why you can't reproduce. But, when specify the --with-build-time-tools=xxx the gcc r225249 can be build successfully. The gcc r225260 failed, the error is same as above. The --with-build-time-tools=xxx is the binutils installed dir. binutils cross-compiler configure with: ../../binutils-gdb_git_trunk/configure --prefix=/home/xuchenghua/toolchain/cross-compiler/gcc-6.0.0 --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=mipsel-redhat-linux-gnu gcc cross-compiler configure with: ../../gcc_git_trunk/configure --prefix=/home/xuchenghua/gcc-trunk --target=mipsel-redhat-linux --with-arch=mips64r2 --with-abi=32 --enable-threads=posix --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --disable-dssi --disable-multilib --enable-languages=c --enable-shared --with-build-time-tools=/home/xuchenghua/toolchain/cross-compiler/gcc-6.0.0/mipsel-redhat-linux-gnu/bin/ I'm sorry for wasted your time. thanks.