出于某种原因，我需要使用以下命令编译Hadoop：
$ ant compile -Dcompile.c++=true -Dlibhdfs=true
然后它最终得到以下信息：
[exec] checking for HMAC_Init in -lssl...
[exec] configure: error: Cannot find libssl.so
[exec] /home/cshou/Documents/Lab/hadoop-1.0.1/src/c++/pipes/configure: line 5166: exit: please: numeric argument required
[exec] /home/cshou/Documents/Lab/hadoop-1.0.1/src/c++/pipes/configure: line 5166: exit: please: numeric argument required
[exec] no
BUILD FAILED
/home/cshou/Documents/Lab/hadoop-1.0.1/build.xml:2102: exec returned: 255
然后我检查了（我使用的是Ubuntu 12.04）
$ apt-cache search libssl
然后我得到了
libssl-dev - SSL development libraries, header files and documentation
libssl-doc - SSL development documentation documentation
libssl1.0.0 - SSL shared libraries
libssl1.0.0-dbg - Symbol tables for libssl and libcrypto
dcmtk - OFFIS DICOM toolkit command line utilities
libcherokee-mod-libssl - Cherokee web server - SSL crypto functions plugin
libdcmtk2 - OFFIS DICOM toolkit runtime libraries
libdcmtk2-dev - OFFIS DICOM toolkit development libraries and headers
libssl-ocaml - OCaml bindings for OpenSSL (runtime)
libssl-ocaml-dev - OCaml bindings for OpenSSL
libssl0.9.8 - SSL shared libraries
libssl0.9.8-dbg - Symbol tables for libssl and libcrypto
libsslcommon2 - enterprise messaging system - common SSL libraries
libsslcommon2-dev - enterprise messaging system - common SSL development files
好像我安装了libssl lib ...
我用Google搜索了很多只找到0.20.0的补丁，这个补丁应该已经在1.0.1中修复了。
任何人都可以帮助我吗？
感谢。