Mac下编译Moses工具
闲来无事，就想在mac平台下编译Moses，以后没事的时候可以折腾一下。但是编译的过程中发生了很多想不到的问题。Moses依赖于其他几个工具，比如GIZA++，SRILM和XMLRPC等工具包，相比于第一次编译，突然发觉现在的编译过程已经极大的简化了，但是有些网站却没有做相应的更新（http://www.statmt.org/moses_steps.html），但是可以很明显的看出问题，也就不详细解释了。
在编译SRILM这个工具包遇到了一个我觉得很蛋疼的问题，编译错误的提示信息如下：
make[2]: [http://www.cnblogs.com/bin/macosx-m64/fngram] Error 1 (ignored)
g++ -DHAVE_ZOPEN -I/usr/include -I. -Ihttp://www.cnblogs.com/include -DHAVE_ZOPEN -c -g -O2 -fno-common -o ../obj/macosx-m64/lattice-tool.o lattice-tool.cc
g++ -DHAVE_ZOPEN -I/usr/include -I. -Ihttp://www.cnblogs.com/include -DHAVE_ZOPEN -u _matherr -Lhttp://www.cnblogs.com/lib/macosx-m64 -g -O2 -fno-common -o ../bin/macosx-m64/lattice-tool ../obj/macosx-m64/lattice-tool.o ../obj/macosx-m64/liblattice.a http://www.cnblogs.com/lib/macosx-m64/libflm.a http://www.cnblogs.com/lib/macosx-m64/liboolm.a http://www.cnblogs.com/lib/macosx-m64/libdstruct.a http://www.cnblogs.com/lib/macosx-m64/libmisc.a -L/usr/lib -ltcl -lm 2>&1 | c++filt
Undefined symbols for architecture x86_64:
"FNgramSpecs<unsigned long>::FNgramSpec::ParentSubset::backoffValueRSubCtxW(unsigned int, unsigned int const*, unsigned int, BackoffNodeStrategy, FNgram&, unsigned int, unsigned int)", referenced from:
FNgram::boNode(unsigned int, unsigned int const*, unsigned int, unsigned int, unsigned int)in libflm.a(FNgramLM.o)
"FNgramSpecs<unsigned long>::FNgramSpec::BGChildIterCnstr::next(unsigned int&)", referenced from:
FNgram::computeBOWs(unsigned int, unsigned int)in libflm.a(FNgramLM.o)
FNgram::bgChildProbBO(unsigned int, unsigned int const*, unsigned int, unsigned int, unsigned int)in libflm.a(FNgramLM.o)
FNgram::boNode(unsigned int, unsigned int const*, unsigned int, unsigned int, unsigned int)in libflm.a(FNgramLM.o)
"FNgramSpecs<unsigned long>::FNgramSpec::BGChildIterCnstr::BGChildIterCnstr(unsigned int, unsigned int, unsigned int)", referenced from:
FNgram::computeBOWs(unsigned int, unsigned int)in libflm.a(FNgramLM.o)
。。。。。。。。。（中间的内容跟前面差不多，所以省去了）
"LHash<char const*, unsigned int>::getInternalKey(char const*, bool&) const", referenced from:
SubVocab::addWord(unsigned int)in liboolm.a(SubVocab.o)
"LHash<unsigned int, unsigned int>::find(unsigned int, bool&) const", referenced from:
Vocab::isNonEvent(unsigned int) constin liboolm.a(SubVocab.o)
KneserNey::estimate(NgramStats&, unsigned int)in liboolm.a(Discount.o)
ModKneserNey::estimate(NgramStats&, unsigned int)in liboolm.a(Discount.o)
GoodTuring::estimate(NgramStats&, unsigned int)in liboolm.a(Discount.o)
ld: symbol(short) not found for architecture x86_64
collect2: ld returned 1 exit status
/Users/zhangyu/Src/Project/tools/srilm/sbin/decipher-install 0555 ../bin/macosx-m64/lattice-tool http://www.cnblogs.com/bin/macosx-m64
ERROR: File to be installed (../bin/macosx-m64/lattice-tool) does not exist.
Usage: decipher-install [-p] <mode> <file1> ... <fileN> <directory>
mode: file permission mode, in octal
file1 ... fileN: files to be installed
directory: where the files should be installed
按照编译错误的提示，应该是文件编译的格式出问题，可能不是X86_64架构的，但是我用file文件查看时，每一个obj文件都是X86_64架构的，而且这里提示缺少的文件，我都能在一些obj和ar文件中查询到，这个问题到现在也没有解决。。。。。。
遇到的另外一个问题就是苹果的动态库，貌似跟windows的有点差别，加载路径已经定死了，是写入了可执行文件之中，不得随意更改，如果没有绝对路径，那么查找相应的动态链接库就会失败，这是觉得比较奇怪的地方，解决的方法是设置两个环境变量（DYLD_FALLBACK_FRAMEWORK_PATH，DYLD_LIBRARY_PATH），将你的库文件路径加入到环境变量之中即可。
