在 Linux 上编译 7z.so

https://github.com/rikyoz/bit7z/issues/191

In the source code of 7-Zip, you go to the directory CPP/7zip/Bundles/Format7zF/, and from there, you run the command make -j -f ../../cmpl_gcc.mak (if you want to use GCC) or make -j -f ../../cmpl_clang.mak (if you wish to use Clang). After the build finishes, you will find the 7z.so in a subdirectory of CPP/7zip/Bundles/Format7zF/.

> cd $7ZIP_SRC/CPP/7zip/Bundles/Format7zF/
> make -j -f ../../cmpl_gcc.mak
...
> ls -lh b/g/7z.so
-rwxrwxrwx 1 rikyoz rikyoz 2.7M Feb 28 08:47 b/g/7z.so