Adding support for CMAKE

[archenroot]

While preparing Gentoo ebuilds I addopted the CMAKE way as lots of torch other packages are using it. With CMAKE as build framework I created "more-or-less" common template for any Torch/Lua related stuff and it is quite easy to produce any other ebuild faster.

So I in general added CMakeLists.txt followed by FindReadline.cmake as readline package is required to build against.

Ladislav

[soumith]

thanks!

[archenroot]

I thank you for your work! It is really cool :-)

As I am working on ebuilds for Gentoo for whole Torch subsystem, I identified on my journey few common variables used with LUA or C/C++ LUA bindings:

"-DLUADIR=$($(tc-getPKG_CONFIG) --variable INSTALL_LMOD $(usex luajit 'luajit' 'lua'))"
"-DLIBDIR=$($(tc-getPKG_CONFIG) --variable INSTALL_LIB $(usex luajit 'luajit' 'lua'))"
"-DLUA_BINDIR=$($(tc-getPKG_CONFIG) --variable INSTALL_BIN $(usex luajit 'luajit' 'lua'))"
"-DLUA_INCDIR=$($(tc-getPKG_CONFIG) --variable INSTALL_INC $(usex luajit 'luajit' 'lua'))"
"-DLUA_LIBDIR=$($(tc-getPKG_CONFIG) --variable INSTALL_CMOD $(usex luajit 'luajit' 'lua'))"
"-DSCRIPTS_DIR=$($(tc-getPKG_CONFIG) --variable INSTALL_BIN $(usex luajit 'luajit' 'lua'))"
"-DLUALIB=`equery files luajit |grep lib64/libluajit | grep .so | awk 'NR==0; END{print}'`"
"-DLUA=/usr/bin/luajit"
"-DCMAKE_BUILD_TYPE=Release"
"-DCMAKE_PREFIX_PATH=$($(tc-getPKG_CONFIG) --variable INSTALL_BIN $(usex luajit 'luajit' 'lua'))/.."
"-DCMAKE_INSTALL_PREFIX=/usr"

This is common variable set usually required (not always all of them) for any Torch related package. I also realized that some of the CMAKE configurations are not compatible for some reason, so I am forking every not aligned repo and trying to align them all to something like "TORCH CMAKE STYLE" :-)

Thanks again!

[soumith]

thank you. yes, some cmake files are slightly different than others mostly because many different developers worked on them :)
thanks for your contributions.