title: pycurl error on Mac OS 10.8
body: <p>I have installed pycurl using pip</p>
  
  <pre><code>oczml:~ acid$ sudo pip install pycurl
  Password:
  Downloading/unpacking pycurl
    Downloading pycurl-7.19.3.1.tar.gz (116kB): 116kB downloaded
    Running setup.py egg_info for package pycurl
      Using curl-config (libcurl 7.24.0)
  
  Installing collected packages: pycurl
    Running setup.py install for pycurl
      Using curl-config (libcurl 7.24.0)
      building 'pycurl' extension
      clang -fno-strict-aliasing -fno-common -dynamic -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -mno-fused-madd -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch i386 -arch x86_64 -pipe -DPYCURL_VERSION="7.19.3.1" -DHAVE_CURL_SSL=1 -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/pycurl.c -o build/temp.macosx-10.8-intel-2.7/src/pycurl.o
      clang: warning: argument unused during compilation: '-mno-fused-madd'
      src/pycurl.c:123:4: warning: "libcurl was compiled with SSL support, but configure could not determine which "    "library was used; thus no SSL crypto locking callbacks will be set, which may "    "cause random crashes on SSL requests" [-W#warnings]
      #  warning \
         ^
      1 warning generated.
      src/pycurl.c:123:4: warning: "libcurl was compiled with SSL support, but configure could not determine which "    "library was used; thus no SSL crypto locking callbacks will be set, which may "    "cause random crashes on SSL requests" [-W#warnings]
      #  warning \
         ^
      src/pycurl.c:1555:26: warning: implicit conversion loses integer precision: 'long' to 'int' [-Wshorten-64-to-32]
                  int sockfd = PyInt_AsLong(fileno_result);
                      ~~~~~~   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
      src/pycurl.c:1630:24: warning: implicit conversion loses integer precision: 'long' to 'int' [-Wshorten-64-to-32]
              int ret_code = PyInt_AsLong(result);
                  ~~~~~~~~   ^~~~~~~~~~~~~~~~~~~~
      src/pycurl.c:2447:31: warning: implicit conversion loses integer precision: 'long' to 'int' [-Wshorten-64-to-32]
                              val = PyLong_AsLong(PyTuple_GET_ITEM(t, j));
                                  ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      src/pycurl.c:3610:22: warning: implicit conversion loses integer precision: 'long' to '__darwin_suseconds_t' (aka 'int') [-Wshorten-64-to-32]
              tv.tv_usec = (long)(timeout*1000000.0);
                         ~ ^~~~~~~~~~~~~~~~~~~~~~~~~
      src/pycurl.c:4513:27: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
          libcurl_version_len = strlen(libcurl_version);
                              ~ ^~~~~~~~~~~~~~~~~~~~~~~
      6 warnings generated.
      clang -bundle -undefined dynamic_lookup -Wl,-F. -arch i386 -arch x86_64 build/temp.macosx-10.8-intel-2.7/src/pycurl.o -lcurl -o build/lib.macosx-10.8-intel-2.7/pycurl.so
  
  Successfully installed pycurl
  Cleaning up...
  </code></pre>
  
  <p>But when I try to import pycurl, I get the following error:</p>
  
  <pre><code>ImportError: pycurl: libcurl link-time ssl backend (openssl) is different from compile-time ssl backend (none/other)
  </code></pre>