check flags:    
[pbuilding check-recursive
Making check in src
[pmake[1]: Entering directory `/private/tmp/nix-build-aq0x0fxl22lhvymppwk2i7ig0ccf5lw1-java-front-syntax.drv-0/java-front-syntax-0.1/src'
make[1]: Nothing to be done for `check'.
make[1]: Leaving directory `/private/tmp/nix-build-aq0x0fxl22lhvymppwk2i7ig0ccf5lw1-java-front-syntax.drv-0/java-front-syntax-0.1/src'
[q[pmake[1]: Entering directory `/private/tmp/nix-build-aq0x0fxl22lhvymppwk2i7ig0ccf5lw1-java-front-syntax.drv-0/java-front-syntax-0.1'
make[1]: Nothing to be done for `check-am'.
make[1]: Leaving directory `/private/tmp/nix-build-aq0x0fxl22lhvymppwk2i7ig0ccf5lw1-java-front-syntax.drv-0/java-front-syntax-0.1'
[q[q