gcc 6.3.0 compiling as user gives permission denied

[Jonathan Wakely]

On 30 June 2017 at 00:18, Marek wrote:
> compiling gcc as a part of toolchain (linux from scratch) gives me the
> following error when compiling as user
> but compiles fine when compiling as root:
>
> --prefix=/tools \
> --target=x86_64-lfs-linux-gnu \
> --with-sysroot=/media/usbdisk \
> --with-glib-version=2.25 \
> --with-newlib \
> --without-headers \
> --with-local-prefix=/tools\
> --with-native-system-header-dir=/tools/include \
> --disable-nls \
> --disable-shared \
> --disable-multilib \
> --disable-decimal-float \
> --disable-threads \
> --disable-libatomic \
> --disable-libgomp \
> --disable-libitm \
> --disable-libquadmath \
> --disable-libssp \
>         --disable-libvtv \
>     --disable-nls                   \
> --with-system-zlib \
>     --with-gxx-include-dir=/tools/x86_64-lfs-linux-gnu/include/c++/6.3.0 \
> --disable-libmpx \
> --enable-languages=c,c++ \
>         --disable-libstdcxx"
>
> configure: error: in
> `/run/media/void/minnow/build/gcc-6.3.0/x86_64-lfs-linux-gnu/libgcc':
> configure: error: cannot compute suffix of object files: cannot compile
> See `config.log' for more details.
> make[1]: *** [Makefile:11601: configure-target-libgcc] Error 1
>
> configure:3462: /run/media/void/minnow/build/gcc-6.3.0/./gcc/xgcc
> -B/run/media/void/minnow/build/gcc-6.3.0/./gcc/
> -B/tools/x86_64-lfs-linux-gnu/bin/ -B/tools/x86_64-lfs-linux-gnu/lib/
> -isystem /tools/x86_64-lfs-linux-gnu/include -isystem
> /tools/x86_64-lfs-linux-gnu/sys-include    -o conftest -g -O2
> conftest.c  >&5
> cc1: error: /tools/x86_64-lfs-linux-gnu/include: Permission denied
> cc1: error: /tools/x86_64-lfs-linux-gnu/sys-include: Permission denied
> configure:3465: $? = 1
> configure:3653: checking for suffix of object files
> configure:3675: /run/media/void/minnow/build/gcc-6.3.0/./gcc/xgcc
> -B/run/media/void/minnow/build/gcc-6.3.0/./gcc/
> -B/tools/x86_64-lfs-linux-gnu/bin/ -B/tools/x86_64-lfs-linux-gnu/lib/
> -isystem /tools/x86_64-lfs-linux-gnu/include -isystem
> /tools/x86_64-lfs-linux-gnu/sys-include    -c -g -O2  conftest.c >&5
> cc1: error: /tools/x86_64-lfs-linux-gnu/include: Permission denied
> cc1: error: /tools/x86_64-lfs-linux-gnu/sys-include: Permission denied

Your user doesn't have permission to read these directories.

You configured GCC to look in there, so it needs to be able to look in there.