Undefined variable when building Bootstrap 5.3.2

[iggyzuk]

Trying to build sass for bootstrap-5.3.2 and I get an error. Looks to me like a circular issue: _variables.scss and _functions.scss depend on each other.

Command

rsass bootstrap.scss

Error

rsass bootstrap.scss
Error: Undefined variable.
    ,
153 | @function color-contrast($background, $color-contrast-dark: $color-contrast-dark, $color-contrast-light: $color-contrast-light, $min-contrast-ratio: $min-contrast-ratio) {
    |                                                             ^^^^^^^^^^^^^^^^^^^^
    '
    _functions.scss 153:61  @import
    bootstrap.scss 7:9      root stylesheet

[kaj]

Bootstrap is not expected to work yet, as it uses @extend which is not supported by rsass yet. I think rsass should handle circular dependencies as well as other sass implementations, but there is some stuff with setting default variables that might cause this.

As long as the trigger is bootstrap though, I probably won't actively search for fix until after I have implemented @extend, so there is at least some hope for rsass to build bootstrap.