Install Homebrew if you don't have installed it:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

Install requirements with Homebrew:

brew install autoconf automake gettext libtool pkg-config expat icu4c

Set up pkgconfig to see expat and icu4c configurations:

export PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig:/usr/local/opt/expat/lib/pkgconfig:$PKG_CONFIG_PATH"

Download liblcf sources from git:

git clone https://github.com/EasyRPG/liblcf

Enter to the liblcf fodler:

cd liblcf

Generate configure script:

autoreconf -i

Generate Makefile:

./configure --prefix=/usr

Build:

make -j4

Install:

sudo make install