Does not build in OpenSuSe when versioned_function is used

[rostamn739]

I'm trying to port Rust software to Opensuse

One of the crates uses rust_icu_sys directly
When any code tries to use the macro versioned_function! with some ICU symbol, a build error appears:

error[E0425]: cannot find function `ucol_strcoll_65` in crate `$crate`
    --> ...
     |
322  |           let result = versioned_function!(ucol_strcoll)(
     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `ucol_strcoll_65_1`

It seems that on opensuse ICU defines it own symbols with both MAJOR and MINOR versions included in the name of the symbol, however the rust_icu_sys crate uses only MAJOR version suffix

[rostamn739]

Yep, I've tried to just run cargo build on opensuse with your repository cloned from github: It does not build, fails with the same errors. How would I fix that?

[filmil]

We probably need a build flag to support the SUSE version encoding.

I wonder why they must reinvent the wheel.

[filmil]

Care to contribute a fix here? I have no immediate contact with SuSE, so don't feel very comfortable proposing a resolution here.