错误提示：
make all
Building target: BLSExample
Invoking: GCC C Linker
gcc -L/usr/local/lib -o "BLSExample" ./bls.o -lpbc
/usr/bin/ld: ./bls.o: undefined reference to symbol '__gmpz_init'
//usr/local/lib/libgmp.so.10: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [BLSExample] Error 1
makefile:29: recipe for target 'BLSExample' failed
新手，希望可以知道详细解决方法 要详细！！！
