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POCompiling gcc-4.8.1: "libmpc.so.2 cannot open shared object file download prerequisites"
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  1. POCompiling gcc-4.8.1: "libmpc.so.2 cannot open shared object file download prerequisites"
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    copied!<p>Many people appear to have encountered this problem. The GNU website strongly recommends running </p> <pre><code>./contrib/download_prerequisites </code></pre> <p>in the source directory to avoid problems with linking MPC, MPFR and GMP. The following link contains the instructions I've followed: <a href="http://gcc.gnu.org/wiki/InstallingGCC" rel="nofollow">http://gcc.gnu.org/wiki/InstallingGCC</a> which I've listed here:</p> <pre><code>tar xzf gcc-4.8.1.tar.gz cd gcc-4.8.1 ./contrib/download_prerequisites cd .. mkdir objdir cd objdir $PWD/../gcc-4.8.1/configure --prefix=$HOME/gcc-4.8.1-install make make install </code></pre> <p>The FAQ at this url: <a href="http://gcc.gnu.org/wiki/FAQ#configure_suffix" rel="nofollow">http://gcc.gnu.org/wiki/FAQ#configure_suffix</a> claims that the compilation will have no problem finding MPC related files so long as they are located in a subdirectory of the gcc-4.8.1 source directory. Running </p> <p>./contrib/downlaod_prerequisites</p> <p>downloads MPC in the correct location, yet I still get this error after running make: </p> <pre><code>checking for x86_64-unknown-linux-gnu-gcc... /home/xxxx/gcc-4.8.1-build/./gcc/xgcc -B/home/xxxx/gcc-4.8.1-build/./gcc/ -B/home/xxxx/gcc-4.8.1-install/x86_64-unknown-linux-gnu/bin/ -B/home/xxxx/gcc-4.8.1-install/x86_64-unknown-linux-gnu/lib/ -isystem /home/xxxx/gcc-4.8.1-install/x86_64-unknown-linux-gnu/include -isystem /home/xxxx/gcc-4.8.1-install/x86_64-unknown-linux-gnu/sys-include checking for suffix of object files... configure: error: in `/home/xxxx/gcc-4.8.1-build/x86_64-unknown-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details. </code></pre> <p>Opening <strong>/home/xxxx/gcc-4.8.1-build/x86_64-unknown-linux-gnu/libgcc/config.log</strong> reveals the following error:</p> <pre><code>/home/mgiamou/gcc-4.8.1-build/./gcc/cc1: error while loading shared libraries: libmpc.so.2: cannot open shared object file: No such file or directory </code></pre> <p>The GNU FAQs (<a href="http://gcc.gnu.org/wiki/FAQ#configure_suffix" rel="nofollow">http://gcc.gnu.org/wiki/FAQ#configure_suffix</a>) say that this error is symptomatic of not having properly installed MPC. Any help would be much appreciated.</p>
 

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