| Message ID | 20240913180622.1327656-1-masahiroy@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | kbuild: remove unnecessary export of RUST_LIB_SRC | expand |
On Sat, Sep 14, 2024 at 03:06:20AM +0900, Masahiro Yamada wrote: > If RUST_LIB_SRC is defined in the top-level Makefile (via an environment > variable or command line), it is already exported. > > The only situation where it is defined but not exported is when the > top-level Makefile is wrapped by another Makefile (e.g., GNUmakefile). > I cannot think of any other use cases. > > I know some people use this tip to define custom variables. However, > even in that case, you can export it directly in the wrapper Makefile. > > Example GNUmakefile: > > export RUST_LIB_SRC = /path/to/your/sysroot/lib/rustlib/src/rust/library > include Makefile > > Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> > --- > This code was added by this commit: > > https://github.com/Rust-for-Linux/linux/commit/3f46885dc03ed2d750085b2237078a1628323964 > > Please me know if I am missing something. Looks good to me. Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
diff --git a/Makefile b/Makefile index d57cfc6896b8..b194b7702a2e 100644 --- a/Makefile +++ b/Makefile @@ -578,10 +578,6 @@ else RUSTC_OR_CLIPPY = $(RUSTC) endif -ifdef RUST_LIB_SRC - export RUST_LIB_SRC -endif - # Allows the usage of unstable features in stable compilers. export RUSTC_BOOTSTRAP := 1
If RUST_LIB_SRC is defined in the top-level Makefile (via an environment variable or command line), it is already exported. The only situation where it is defined but not exported is when the top-level Makefile is wrapped by another Makefile (e.g., GNUmakefile). I cannot think of any other use cases. I know some people use this tip to define custom variables. However, even in that case, you can export it directly in the wrapper Makefile. Example GNUmakefile: export RUST_LIB_SRC = /path/to/your/sysroot/lib/rustlib/src/rust/library include Makefile Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> --- This code was added by this commit: https://github.com/Rust-for-Linux/linux/commit/3f46885dc03ed2d750085b2237078a1628323964 Please me know if I am missing something. Makefile | 4 ---- 1 file changed, 4 deletions(-)