diff --git a/scripts/install_deps.sh b/scripts/install_deps.sh
index 6cf6723..1461838 100755
--- a/scripts/install_deps.sh
+++ b/scripts/install_deps.sh
@@ -51,20 +51,42 @@ install_from_github() {
 		CPPFLAGS="-I/usr/local/include" \
 		LDFLAGS="-L/usr/local/lib -Wl,-R/usr/local/lib" \
 		PKG_CONFIG_PATH="/usr/local/lib/pkgconfig"
-	make
-	sudo make install
+	make -j2
+	$SUDO make install
 	cd -
 
 	rm -rf "${distname}" "${distname}.tar.gz"
 }
 
-if [ $(uname -s) = "Darwin" ]; then
+SUDO=sudo
+CFLAGS="-g -O2"
+case $(uname -s) in
+Darwin)
 	brew update
 	brew install libarchive --with-xz
 	brew install openssl
 	brew install kyua
-elif [ $(uname -s) = "Linux" ]; then
+	;;
+Linux)
 	install_from_github atf 0.21
 	install_from_github lutok 0.4
 	install_from_github kyua 0.12
-fi
+	;;
+CYGWIN*)
+	SUDO=""
+	apt-cyg update
+	apt-cyg install lua-devel libsqlite3-devel
+	install_from_github lutok 0.4
+
+	# Work around
+	# utils/process/system.cpp:59:68: error: invalid conversion from ‘pid_t (*)(pid_t, __wait_status_ptr_t, int) {aka int (*)(int, void*, int)}’ to ‘pid_t (*)(pid_t, int*, int) {aka int (*)(int, int*, int)}’ [-fpermissive]
+	# pid_t (*detail::syscall_waitpid)(const pid_t, int*, const int) = ::waitpid;
+	#								    ^
+	# make[1]: *** [Makefile:7014: utils/process/libutils_a-system.o] Error 1
+	export CXXFLAGS="-g -O2 -fpermissive"
+	install_from_github kyua 0.12
+	unset CXXFLAGS
+
+	install_from_github atf 0.21
+	;;
+esac