I got this error when compiling on ubuntu (I have already all dependencies):
juan@Asus:~/dimecoin/src$ make -f makefile.unix
Building LevelDB ...
/bin/sh: 1: ./build_detect_platform: Permission denied
make[1]: Entering directory `/home/juan/dimecoin/src/leveldb'
Makefile:18: build_config.mk: No such file or directory
make[1]: *** No rule to make target `build_config.mk'. Stop.
make[1]: Leaving directory `/home/juan/dimecoin/src/leveldb'
make: *** [leveldb/libleveldb.a] Error 2