title: Setup pjsip for Python
body: <p>I'm trying to install pjsip's Python binding but am running into a build error that I feel is environmental but am just not able to figure out what's wrong.</p>
  
  <p>I'm able to build pjsip without issue but run into a problem when trying to build the python bindings -- I'm getting an error from ld about a bad value in one of the static libraries.</p>
  
  <p>Any thoughts?</p>
  
  <pre><code>root@0fcbc7b108af:/src/pjproject-2.5.5/pjsip-apps/src/python# python setup.py install
  running install
  running build
  running build_py
  running build_ext
  building '_pjsua' extension
  x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -DPJ_AUTOCONF=1 -I/src/pjproject-2.5.5/pjlib/include -I/src/pjproject-2.5.5/pjlib-util/include -I/src/pjproject-2.5.5/pjnath/include -I/src/pjproject-2.5.5/pjmedia/include -I/src/pjproject-2.5.5/pjsip/include -I/usr/include/python2.7 -c _pjsua.c -o build/temp.linux-x86_64-2.7/_pjsua.o
  _pjsua.c: In function 'py_pjsua_enum_transports':
  _pjsua.c:1202:17: warning: variable 'status' set but not used [-Wunused-but-set-variable]
       pj_status_t status;
               ^
  _pjsua.c: In function 'py_pjsua_conf_get_port_info':
  _pjsua.c:2338:9: warning: variable 'status' set but not used [-Wunused-but-set-variable]
   int status;
           ^
  _pjsua.c: In function 'py_pjsua_get_snd_dev':
  _pjsua.c:2714:9: warning: variable 'status' set but not used [-Wunused-but-set-variable]
   int status;
       ^
  x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wl,-Bsymbolic-functions -Wl,-z,relro -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/_pjsua.o -L/src/pjproject-2.5.5/pjlib/lib -L/src/pjproject-2.5.5/pjlib-util/lib -L/src/pjproject-2.5.5/pjnath/lib -L/src/pjproject-2.5.5/pjmedia/lib -L/src/pjproject-2.5.5/pjsip/lib -L/src/pjproject-2.5.5/third_party/lib -lpjsua-x86_64-unknown-linux-gnu -lpjsip-ua-x86_64-unknown-linux-gnu -lpjsip-simple-x86_64-unknown-linux-gnu -lpjsip-x86_64-unknown-linux-gnu -lpjmedia-codec-x86_64-unknown-linux-gnu -lpjmedia-x86_64-unknown-linux-gnu -lpjmedia-videodev-x86_64-unknown-linux-gnu -lpjmedia-audiodev-x86_64-unknown-linux-gnu -lpjmedia-x86_64-unknown-linux-gnu -lpjnath-x86_64-unknown-linux-gnu -lpjlib-util-x86_64-unknown-linux-gnu -lsrtp-x86_64-unknown-linux-gnu -lresample-x86_64-unknown-linux-gnu -lgsmcodec-x86_64-unknown-linux-gnu -lspeex-x86_64-unknown-linux-gnu -lilbccodec-x86_64-unknown-linux-gnu -lg7221codec-x86_64-unknown-linux-gnu -lyuv-x86_64-unknown-linux-gnu -lpj-x86_64-unknown-linux-gnu -lm -lrt -lpthread -lasound -o build/lib.linux-x86_64-2.7/_pjsua.so
  /usr/bin/ld: /src/pjproject-2.5.5/pjsip/lib/libpjsua-x86_64-unknown-linux-gnu.a(pjsua_acc.o): relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC
  /src/pjproject-2.5.5/pjsip/lib/libpjsua-x86_64-unknown-linux-gnu.a: error adding symbols: Bad value
  collect2: error: ld returned 1 exit status
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
  </code></pre>