Compile and link hiredis with webruby

command.sh

# Suppose the currenct directory is ~/develop

$ git clone https://github.com/redis/hiredis
$ cd hiredis

# Set emscripten compiling target
$ export EMCC_LLVM_TARGET=i386-pc-linux-gnu

# Locale the installation path of webruby, for example, on my mac this is:
# ~/.gem/ruby/2.0.0/gems/webruby-0.2.4/
# So emscripten cc compilier lives at:
# ~/.gem/ruby/2.0.0/gems/webruby-0.2.4/modules/emscripten/emcc
# And the ar archive tool lives at:
# ~/.gem/ruby/2.0.0/gems/webruby-0.2.4/modules/emscripten/emar

# Hence, use the following command to set compiler:
$ export CC="~/.gem/ruby/2.0.0/gems/webruby-0.2.4/modules/emscripten/emcc"

# Now we can compile hiredis:
$ make OPTIMIZATION="-O2" DEBUG="-g" STLIB_MAKE_CMD="/Users/rafael/develop/opensource/webruby/modules/emscripten/emar rcs libhiredis.a" libhiredis.a

# If everything goes as planned, we will have a `libhiredis.a` file in current directory, this is the library we want to link

$ cd ..

# Now install the latest webruby gem(0.2.4)
$ webruby new HiredisExample
$ cd HiredisExample

# Open your favourite editor, add the following lines to the Rakefile:
#
# conf.gem :git => 'https://github.com/matsumoto-r/mruby-redis', :branch => 'master'
# conf.cflags << '-I/usr/local/Cellar/hiredis/0.11.0/include'
# conf.static_libs << '~/develop/opensource/hiredis/libhiredis.a'
#
# You may want to adjust the parameters according to your environment

# Then you can use webruby to build and link hiredis:
$ rake