Slim down the shared library size

[artob]

Building HEAD (at the time of writing, revision 277b8d1) results in a 130 MB shared library:

arto@ubuntu:/src/LucenePlusPlus$ ls -l bin
total 161008
-rw-rw-r-- 1 arto arto    275976 Sep 12 03:15 liblucene++-c.a
lrwxrwxrwx 1 arto arto        24 Sep 12 03:34 liblucene++-contrib.so -> liblucene++-contrib.so.0
lrwxrwxrwx 1 arto arto        30 Sep 12 03:34 liblucene++-contrib.so.0 -> liblucene++-contrib.so.3.0.3.4
-rwxrwxr-x 1 arto arto  25568778 Sep 12 03:34 liblucene++-contrib.so.3.0.3.4
lrwxrwxrwx 1 arto arto        16 Sep 12 03:31 liblucene++.so -> liblucene++.so.0
lrwxrwxrwx 1 arto arto        22 Sep 12 03:31 liblucene++.so.0 -> liblucene++.so.3.0.3.4
-rwxrwxr-x 1 arto arto 136893535 Sep 12 03:31 liblucene++.so.3.0.3.4

This was built on an Ubuntu 12.10 (x86-64) host with GCC 4.7.2, libstdc++, and Boost 1.50 using cmake . && make.

130 MB seems a tad large, on the order of an XXXL size, for a shared library. Any ideas as to what might be contributing to bloating up the library so much, and how it might be slimmed back down? I'd be happy to contribute patches if there is something to be done about it.

[artob]

I should note that stripping the shared library does considerably reduce its size, from 130 MB to ~8 MB:

arto@ubuntu:/src/LucenePlusPlus$ strip bin/liblucene++.so.3.0.3.4 bin/liblucene++-contrib.so.3.0.3.4
arto@ubuntu:/src/LucenePlusPlus$ ls -l bin
total 12152
-rw-rw-r-- 1 arto arto  275976 Sep 12 03:15 liblucene++-c.a
lrwxrwxrwx 1 arto arto      24 Sep 12 03:34 liblucene++-contrib.so -> liblucene++-contrib.so.0
lrwxrwxrwx 1 arto arto      30 Sep 12 03:34 liblucene++-contrib.so.0 -> liblucene++-contrib.so.3.0.3.4
-rwxrwxr-x 1 arto arto 1762992 Sep 12 04:47 liblucene++-contrib.so.3.0.3.4
lrwxrwxrwx 1 arto arto      16 Sep 12 03:31 liblucene++.so -> liblucene++.so.0
lrwxrwxrwx 1 arto arto      22 Sep 12 03:31 liblucene++.so.0 -> liblucene++.so.3.0.3.4
-rwxrwxr-x 1 arto arto 8274688 Sep 12 04:47 liblucene++.so.3.0.3.4

Perhaps the README's build instructions ought to be amended to make a stripped version by default, in order to build binaries that can usefully be redistributed to end users?

[artob]

Thanks, Alan!