When cross-compiling, Make fails on the following line of src/JudyL/Makefile:
JudyLTables.c: JudyLTablesGen.c
$(CC) $(INCLUDES) $(AM_CFLAGS) @CFLAGS@ -o JudyLTablesGen JudyLTablesGen.c; ./JudyLTablesGen
This is because CC is set to the host compiler not the build compiler. Therefore, JudyLTableGen fails to execute.
The same problem exists for src/Judy1/Makefile.