can not found mcp/mpfr/gmp, but i has installed them.

[Jonathan Wakely]

On Sat, 14 Dec 2019 at 07:19, 刘 加权 <liujiaquan@ultrain.io> wrote:
>
>   cmd 1 : ./configure --disable-multilib  --prefix=/usr/local --with-mpc=/usr/local --with-mpfr=/usr/local --with-gmp=/usr/local &&  make -j4 && sudo make install
>   cmd 2 : ./configure --disable-multilib  --prefix=/usr/local  &&  make -j4 && sudo make install
>
> after I installed mpfr mpc  gmp , I use  --with-mpc=/usr/local to set the path,
> but configure give me the error blew:

This is the wrong mailing list for your question, you should have sent
it to gcc-help instead.

I suggest you follow the advice of
https://gcc.gnu.org/wiki/InstallingGCC as it makes things much easier.