(define lookup-input (@@ (guix packages) lookup-input)) scheme@(gnu packages java)> (lookup-input (package-transitive-native-inputs icedtea-7) "gcc") $16 = #<package gcc@13.3.0 gnu/packages/gcc.scm:992 7faac037fb00> scheme@(gnu packages java)> (lookup-input (package-transitive-native-inputs icedtea-7) "binutils") $17 = #f scheme@(gnu packages java)> (lookup-input (package-transitive-native-inputs icedtea-7) "make") $18 = #f