在linux和unix上有时不知道该使用LD_LIBRARY_PATH还是LIBPATH，经过搜索和实际使用，实际的情况如下| OS | Environment Variable Name
:— | | Linux | LD_LIBRARY_PATH | | Solaris 32-bit ruby | LD_LIBRARY_PATH_32 or LD_LIBRARY_PATH | | Solaris 64-bit ruby | LD_LIBRARY_PATH_64 or LD_LIBRARY_PATH | | HP-UX PA-RISC 32-bit ruby | SHLIB_PATH | | HP-UX PA-RISC 64-bit ruby | LD_LIBRARY_PATH | | HP-UX IA64 | LD_LIBRARY_PATH | | Mac OS X | DYLD_LIBRARY_PATH | | AIX | LIBPATH