check flags:    
building check-recursive
Making check in src
make[1]: Entering directory `/private/tmp/nix-build-xnz62ab51bl5syfsi7xdn02b85xh88sj-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-xnz62ab51bl5syfsi7xdn02b85xh88sj-java-front-syntax.drv-0/java-front-syntax-0.1/src'
make[1]: Entering directory `/private/tmp/nix-build-xnz62ab51bl5syfsi7xdn02b85xh88sj-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-xnz62ab51bl5syfsi7xdn02b85xh88sj-java-front-syntax.drv-0/java-front-syntax-0.1'