Move linker options after object so they are included as dependencies

[rm-hull]

Trying to use https://code.google.com/p/py-leveldb/ against this flavor of leveldb, and on importing, get errors as follows (on Ubuntu 12.04 LTS):

ImportError: /usr/local/lib/libleveldb.so.1: undefined symbol: clock_nanosleep

Looking at the source, clock_nanosleep should be part of librt, but its not listed as a dependency:

$ ldd libleveldb.so
    linux-vdso.so.1 =>  (0x00007fffd09b6000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fb5b3490000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fb5b3194000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fb5b2f7d000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb5b2d60000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb5b29a1000)
    /lib64/ld-linux-x86-64.so.2 (0x00007fb5b3a26000)

even though -lrt is passed in the flags. The problem is that the linked libraries should be supplied after the -o libleveldb.so.1.9 flag, else they seem to be ignored

With the patched makefile, rebuilding and checking dependencies:

$ ldd libleveldb.so
    linux-vdso.so.1 =>  (0x00007fff18dce000)
    librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f3c17585000)
    libsnappy.so.1 => /usr/local/lib/libsnappy.so.1 (0x00007f3c1737e000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f3c1707d000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3c16d81000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f3c16b6b000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3c1694d000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3c1658e000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f3c17a23000)

Note that librt and snappy are both now referenced correctly, and I can use it from python successfully

[matthewvon]

Would you try building with new Makefile contained within this pull request:

#183

I attempted to incorporate your work with a general rewrite of the Makefile. The ldd test on my Debian box matches your expected example.

[rm-hull]

Hi @matthewvon, pulled from the mv-make-makeover branch and rebuilt and can confirm that the dependencies include librt.so

[matthewvon]

Change merged into another PR and merged today. Thank you.