Using env var in .cargo/config.toml

[Real-YuZhe]

Hi, any way I can use env var in config.toml?

linker = "/home/ci/.espressif/tools/xtensa-esp32-elf/esp-2022r1-11.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc"

and I have export CROSS_CIMPILE=/home/ci/.espressif/tools/xtensa-esp32-elf/esp-2022r1-11.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-

I tryied linker = "${CROSS_COMPILE}gcc" but didn't work? Any adea about how to fix it?

[Real-YuZhe]

@ teo swee ann
Any one knows？

[bjoernQ]

I don't think it's currently supported by Cargo: rust-lang/cargo#10789