lifaac编译时出错，重复定义的问题

lifaac的版本是1.28,最早编译时就有错误，一步步解决到后面出现了重定义，如下代码：
In function `MP4TrefTypeAtom::MP4TrefTypeAtom(char const*)':
atom_treftype.cpp:(.text+0xe0): multiple definition of `MP4TrefTypeAtom::MP4TrefTypeAtom(char const*)',像这样的重定义，还有很多,不知这个问题如何解决呢?
libmp4v2/atom_treftype.o: In function `MP4TrefTypeAtom::Read()':
atom_treftype.cpp:(.text+0x0): multiple definition of `MP4TrefTypeAtom::Read()'
libmp4v2/atom_treftype.o:atom_treftype.cpp:(.text+0x0): first defined here
libmp4v2/atom_treftype.o: In function `MP4TrefTypeAtom::MP4TrefTypeAtom(char const*)':
atom_treftype.cpp:(.text+0xe0): multiple definition of `MP4TrefTypeAtom::MP4TrefTypeAtom(char const*)'
libmp4v2/atom_treftype.o:atom_treftype.cpp:(.text+0xe0): first defined here
libmp4v2/atom_treftype.o: In function `MP4TrefTypeAtom::MP4TrefTypeAtom(char const*)':
atom_treftype.cpp:(.text+0xe0): multiple definition of `MP4TrefTypeAtom::MP4TrefTypeAtom(char const*)'
libmp4v2/atom_treftype.o:atom_treftype.cpp:(.text+0xe0): first defined here
libmp4v2/atom_trun.o: In function `MP4TrunAtom::MP4TrunAtom()':
atom_trun.cpp:(.text+0x0): multiple definition of `MP4TrunAtom::MP4TrunAtom()'
libmp4v2/atom_trun.o:atom_trun.cpp:(.text+0x0): first defined here
libmp4v2/atom_trun.o: In function `MP4TrunAtom::MP4TrunAtom()':
atom_trun.cpp:(.text+0x0): multiple definition of `MP4TrunAtom::MP4TrunAtom()'
libmp4v2/atom_trun.o:atom_trun.cpp:(.text+0x0): first defined here
libmp4v2/atom_trun.o: In function `MP4TrunAtom::AddProperties(unsigned int)':
atom_trun.cpp:(.text+0x180): multiple definition of `MP4TrunAtom::AddProperties(unsigned int)'
libmp4v2/atom_trun.o:atom_trun.cpp:(.text+0x180): first defined here
libmp4v2/atom_trun.o: In function `MP4TrunAtom::Read()':
atom_trun.cpp:(.text+0xa40): multiple definition of `MP4TrunAtom::Read()'
libmp4v2/atom_trun.o:atom_trun.cpp:(.text+0xa40): first defined here
libmp4v2/atom_udta.o: In function `MP4UdtaAtom::Read()':
atom_udta.cpp:(.text+0x0): multiple definition of `MP4UdtaAtom::Read()'
libmp4v2/atom_udta.o:atom_udta.cpp:(.text+0x0): first defined here
libmp4v2/atom_udta.o: In function `MP4UdtaAtom::MP4UdtaAtom()':
atom_udta.cpp:(.text+0x50): multiple definition of `MP4UdtaAtom::MP4UdtaAtom()'
libmp4v2/atom_udta.o:atom_udta.cpp:(.text+0x50): first defined here
libmp4v2/atom_udta.o: In function `MP4UdtaAtom::MP4UdtaAtom()':
atom_udta.cpp:(.text+0x50): multiple definition of `MP4UdtaAtom::MP4UdtaAtom()'
libmp4v2/atom_udta.o:atom_udta.cpp:(.text+0x50): first defined here collect2: ld 返回 1

mp4v2是libfaac中common下的文件，大家伙编译时libfaac时,有没有遇到这样的问题?

没人遇到过这种问题吗？