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Add notes for building g++ with -fPIC option

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Taro L. Saito 2014-07-04 13:54:08 +09:00
parent fe2f579953
commit 2129f915ef
1 changed files with 15 additions and 3 deletions
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README.md
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@ -107,11 +107,23 @@ When building on Solaris use
A file `target/snappy-java-$(version).jar` is the product additionally containing the native library built for your platform. A file `target/snappy-java-$(version).jar` is the product additionally containing the native library built for your platform.
## Building linux amd64 binary ## Building linux x86_64 binary
snappy-java tries to static link libstdc++ to increase the availability for various Linux versions. However, standard distributions of 64-bit Linux OS rarely provide libstdc++ compiled with `-fPIC` option. I currently uses custom g++ compiled with the following options: snappy-java tries to static link libstdc++ to increase the availability for various Linux versions. However, standard distributions of 64-bit Linux OS rarely provide libstdc++ compiled with `-fPIC` option. I currently uses custom g++, compiled as follows:
$ ./configure --prefix=$HOME/local --with-gmp=$HOME/local --with-mpfr=$HOME/local --with-mpc=$HOME/local --with-ppl=$HOME/local --with-cloog=$HOME/local CXXFLAGS=-fPIC CFLAGS=-fPIC ```
$ cd work
$ wget (gcc-4.8.3 source)
$ tar xvfz (gcc-4.8.3.tar.gz)
$ cd gcc-4.8.3
$ ./contrib/download_prerequisites
$ cd ..
$ mkdir objdir
$ cd objdir
$ ../gcc-4.8.3/configure --prefix=$HOME/local/gcc-4.8.3 CXXFLAGS=-fPIC CFLAGS=-fPIC --enable-languages=c,c++
$ make
$ make install
```
This g++ build enables static linking of libstdc++. For more infomation on building GCC, see GCC's home page. This g++ build enables static linking of libstdc++. For more infomation on building GCC, see GCC's home page.