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What other languages ​​have a similar concept to Chapel config variables

I just discovered the Chapel config variable modifier which is great for command line operations. Are there other languages ​​or frameworks that mimic this functionality so I don't have to program the filters every time?

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The width of all different chapel config

-s is really unmatched:

config var   VAR  = 1;         //  --VAR=10         sets other value from cmdline
                               //  --VAR 20         sets other value too
config const RHO  = 1.23456;   //  --RHO=0.123456   sets other value from cmdline
                               //  --RHO 0.2468     sets other value too
                               //  --RHO=0.39*VAR   sets other value for COMPILER
                               //                                    based on VAR
config param DBG  = false;     // -s DBG=true       sets other value from cmdline
config type  B    = uint(8);   //    -sB='uint(16)' sets other value from cmdline
                               //    -sB='if DBG then uint(32) else uint(16)'
                               //                   sets other value for COMPILER
                               //                                    based on DBG


While there is still a need to have typical typing for compilation, which is a definite limitation (for strongly typed, compiled languages, both obvious and natural), there is still the flexibility to use these constructs to customize adaptive runtime, custom behavior is large and difficult to parallel in other languages ​​/ compilers.

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