Fixing Python not linked to mod_python.so issue

[rohan-97]

With this fix, MakeFile in src directory is created with correct python linkers

before this fix,

# ldd ./src/mod_python.so
        linux-vdso.so.1 (0x00007fff9c7ad000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fddbd36b000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fddbd167000)
        libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007fddbcf64000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fddbcbc5000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fddbd7b0000)

after this fix

# ldd ./src/mod_python.so
        linux-vdso.so.1 (0x00007ffd85701000)
        libpython3.5m.so.1.0 => /usr/lib/x86_64-linux-gnu/libpython3.5m.so.1.0 (0x00007f34ee23c000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f34ee01f000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f34ede1b000)
        libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f34edc18000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f34ed879000)
        libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f34ed64f000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f34ed435000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f34ed131000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f34eeaf3000)

[ewah]

#81 (comment)

[ajarzyn]

I confirm fix works for me.

But I would like to revert this approve as I 've noticed comment from ewah.
I would like to present my own solution: #90