没有这一步的话,make时报错:/usr/bin/ld: /*/*/subversion-1.4.*/neon/src/.libs/libneon.a(ne_request.o): relocation R_X86_64_32 can not be used when making a shared object; recompile with -fPIC /*/subversion-1.4.4/neon/src/.libs/libneon.a: could not read symbols: Bad value