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maiha/using-crystal_lib.sh

Created November 13, 2016 10:04
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using-crystal_lib.sh
% git clone git@github.com:crystal-lang/crystal_lib.git
% cd crystal_lib
% cat > lib_ntohl.cr
@[Include("arpa/inet.h")]
lib LibC
fun ntohl
end
% crystal src/main.cr -- lib_ntohl.cr
lib LibC
alias Uint32T = LibC::UInt
fun ntohl(__netlong : Uint32T) : Uint32T
end
# got it!
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