Add gertty and more of its python dependencies.

Unfortunately it does not manage to connect to Haiku server. Works ok
with OpenOCD's one.

dev-python/ply/ply-3.11.recipe

@@ -0,0 +1,68 @@
+SUMMARY="Python Lex & Yacc"
+DESCRIPTION="PLY is yet another implementation of lex and yacc for Python. \
+Some notable features include the fact that its implemented entirely in \
+Python and it uses LALR(1) parsing which is efficient and well suited for \
+larger grammars.
+
+PLY provides most of the standard lex/yacc features including support for \
+empty productions, precedence rules, error recovery, and support for \
+ambiguous grammars.
+
+PLY is extremely easy to use and provides very extensive error checking."
+HOMEPAGE="https://pypi.org/project/ply/"
+COPYRIGHT="2006-2018 David Beazley"
+LICENSE="BSD (3-clause)"
+REVISION="1"
+SOURCE_URI="https://files.pythonhosted.org/packages/e5/69/882ee5c9d017149285cab114ebeab373308ef0f874fcdac9beb90e0ac4da/ply-$portVersion.tar.gz"
+CHECKSUM_SHA256="00c7c1aaa88358b9c765b6d3000c6eec0ba42abca5351b095321aef446081da3"
+
+ARCHITECTURES="any"
+
+PROVIDES="
+	$portName = $portVersion
+	"
+REQUIRES="
+	haiku
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	"
+
+PYTHON_PACKAGES=(python3)
+PYTHON_VERSIONS=(3.6)
+for i in "${!PYTHON_PACKAGES[@]}"; do
+pythonPackage=${PYTHON_PACKAGES[i]}
+pythonVersion=${PYTHON_VERSIONS[$i]}
+eval "PROVIDES_${pythonPackage}=\"\
+	${portName}_$pythonPackage = $portVersion\
+	\"; \
+REQUIRES_$pythonPackage=\"\
+	haiku\n\
+	cmd:python$pythonVersion\
+	\""
+BUILD_REQUIRES="$BUILD_REQUIRES
+	setuptools_$pythonPackage"
+BUILD_PREREQUIRES="$BUILD_PREREQUIRES
+	cmd:python$pythonVersion"
+done
+
+INSTALL()
+{
+	for i in "${!PYTHON_PACKAGES[@]}"; do
+		pythonPackage=${PYTHON_PACKAGES[i]}
+		pythonVersion=${PYTHON_VERSIONS[$i]}
+
+		python=python$pythonVersion
+		installLocation=$prefix/lib/$python/vendor-packages/
+		export PYTHONPATH=$installLocation:$PYTHONPATH
+		mkdir -p $installLocation
+		rm -rf build
+		$python setup.py build install \
+			--root=/ --prefix=$prefix
+
+		packageEntries  $pythonPackage \
+			$prefix/lib/python*
+	done
+}
+