title: Compile libxml2 get "error: storage size of ‘hints’ isn’t known"
body: <p>I download libxml2 2.9.4 in <a href="http://xmlsoft.org/sources" rel="nofollow">here</a>, when i <code>./configure; make</code>, i get following error:</p>
  
  <pre><code>nanohttp.c: In function ‘xmlNanoHTTPConnectHost’:
  nanohttp.c:1073:18: error: storage size of ‘hints’ isn’t known
    struct addrinfo hints, *res, *result;
                    ^
  nanohttp.c:1079:11: warning: implicit declaration of function ‘getaddrinfo’ [-Wimplicit-function-declaration]
    status = getaddrinfo (host, NULL, &amp;hints, &amp;result);
             ^
  nanohttp.c:1079:2: warning: nested extern declaration of ‘getaddrinfo’ [-Wnested-externs]
    status = getaddrinfo (host, NULL, &amp;hints, &amp;result);
    ^
  nanohttp.c:1085:35: error: dereferencing pointer to incomplete type ‘struct addrinfo’
    for (res = result; res; res = res-&gt;ai_next) {
                                     ^
  nanohttp.c:1089:7: warning: implicit declaration of function ‘freeaddrinfo’ [-Wimplicit-function-declaration]
         freeaddrinfo (result);
         ^
  nanohttp.c:1089:7: warning: nested extern declaration of ‘freeaddrinfo’ [-Wnested-externs]
  nanohttp.c:1073:18: warning: unused variable ‘hints’ [-Wunused-variable]
    struct addrinfo hints, *res, *result;
                    ^
  </code></pre>
  
  <p>the full output is <a href="https://gist.github.com/roroco/1d2cf04ad6b4c45c5bddc3249d882ed9" rel="nofollow">here</a></p>
  
  <p>here is my environment:</p>
  
  <pre><code>roroco@roroco ~/Downloads $ lsb_release  -a
  No LSB modules are available.
  Distributor ID: LinuxMint
  Description:    Linux Mint 17.3 Rosa
  Release:    17.3
  Codename:   rosa
  roroco@roroco ~/Downloads $ gcc -v
  Using built-in specs.
  COLLECT_GCC=gcc
  COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
  Target: x86_64-linux-gnu
  Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.8.5-2ubuntu1~14.04.1' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
  Thread model: posix
  gcc version 4.8.5 (Ubuntu 4.8.5-2ubuntu1~14.04.1) 
  </code></pre>
  
  <p>I try version 2.9.2 and 2.9.3, i get same error, how to compile libxml2 success?</p>