Rework the option of the build system

[antoyo]

Currently, the way of building rustc_codegen_gcc without building the sysroot is:

./y.sh test --build-only

It would be better if ./y.sh build would do this, so --build-only will not be an option for the command test anymore.

I see two options here:

• Add a --sysroot flag to ./y.sh build that will build the sysroot only when this flag is specified.
• Do ./y.sh build --build-only to not build the sysroot.

[mubarak23]

can you further explain the two options

[antoyo]

We decided to go with the first option, so the work to be done would be to not always build the sysroot in the build system when providing the build command, but only build it when the --sysroot flag is provided.

[mubarak23]

this mean building it this way

cargo build --sysroot

[antoyo]

No, with the build system that we made for rustc_codegen_gcc which is called from y.sh, so the command would be:

./y.sh build --sysroot

[mubarak23]

interesting, where do i need to make this changes to reflect what are trying to achieve i.e y.sh or Cargo.toml ?

[antoyo]

In the build system, more precisely, you will need to add a new argument here and only build the sysroot when this new argument (flag) is provided by the user.

[mubarak23]

now i understand, kindly assign this issue to me, i will work on it

[antoyo]

Done.