make compiled a lot of programs, but not gcc

[Marco Sulla]

Thank you a lot. I noticed indeed that produced `xgcc` was used in a
second stage of compilation, and that `./xgcc --version` gave to me
[GCC] in the description. But I wanted to be sure, since `xgcc` is
commonly known as a cross-compiler version of `gcc`.

On Wed, 19 Feb 2020 at 02:33, Xi Ruoyao <xry111@mengyan1223.wang> wrote:
>
> On 2020-02-18 11:38 +0100, Marco Sulla wrote:
> > Hello all. I have a problem compiling gcc 9.2.0 on my machine.
> >
> > TL;DR
> > After the make, I have a lot of programs in `gcc` subdir, like `xgcc`,
> > `cpp`, `gfortran` etc, but *not* gcc. What I did wrong?
>
> Before installation it's just named "xgcc".  "make install" will install it as
> "gcc".
>
> > Long explanation. I:
> > 1. downloaded the tar of gcc 9.2.0 from the official size
> > 2. extracted it in a `gcc` subdir
> > 3. created at the same level a `gcc_build` dir
> > 4. installed texinfo, dejagnu, bison, flex and gawk
> > 5. in bash:
> >
> > ./gcc/contrib/download_prerequisites
> > mkdir gcc_build
> > cd gcc_build
> > ../gcc/configure --program-suffix -9.2.0
> > make
> >
> > I have Lubuntu 18.04.3 as guest on a Windows 7 host, machine HP
> > ProBook 650 G2 (not my laptop...)
> >
> > PS: `configure` gave me also this warning:
> >
> > > *** This configuration is not supported in the following subdirectories:
> > >
> > > gnattools gotools target-libada target-libhsail-rt target-libphobos target-
> > > zlib target-libgo target-libffi target-liboffloadmic
> > >
> > > (Any other directories should still work fine.)
>
>
> > I'm concerned about zlib and libffi. Does this warning means gcc can't
> > support zip and libffi?
>
> Target zlib is only necessary for libphobos (which is then used by D runtime)
> and target libffi is only necessary for Go runtime.  D and Go are not enabled by
> default.
>
> > Thank you in advance.
> --
> Xi Ruoyao <xry111@mengyan1223.wang>
> School of Aerospace Science and Technology, Xidian University
>