Added pngquant recipe (#909)

not supported by gcc2

media-gfx/pngquant/pngquant-2.7.2.recipe

@@ -0,0 +1,53 @@
+SUMMARY="A utility for lossy compression of PNG images"
+DESCRIPTION="Pngquant converts 32-bit RGBA PNGs to 8-bit (or smaller) \
+RGBA-palette PNGs, optionally using Floyd-Steinberg dithering.
+
+The conversion reduces file sizes significantly (often as much as 70%) and \
+preserves full alpha transparency. Generated images are compatible with all \
+modern web browsers, and have better fallback in IE6 than 24-bit PNGs."
+HOMEPAGE="https://pngquant.org/"
+COPYRIGHT="2009-2016 by Kornel Lesiński"
+LICENSE="GNU GPL v3"
+REVISION="1"
+SOURCE_URI="https://github.com/pornel/pngquant/archive/$portVersion.tar.gz"
+CHECKSUM_SHA256="071e1af157ed2044d68522f4a18c5d94c5b6cbd83827a08e1bdf0ec0649f9cc9"
+
+ARCHITECTURES="!x86_gcc2 x86 x86_64"
+SECONDARY_ARCHITECTURES="!x86_gcc2 x86"
+
+PROVIDES="
+	pngquant$secondaryArchSuffix = $portVersion
+	cmd:pngquant = $portVersion
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	lib:libpng16$secondaryArchSuffix
+	lib:libz$secondaryArchSuffix
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	devel:libpng16$secondaryArchSuffix
+	devel:libz$secondaryArchSuffix
+	"
+BUILD_PREREQUIRES="
+	cmd:gcc$secondaryArchSuffix
+	cmd:make
+	cmd:awk
+	cmd:git
+	cmd:pkg_config$secondaryArchSuffix
+	"
+
+BUILD()
+{
+	runConfigure ./configure
+	make
+}
+
+INSTALL()
+{
+	make install
+	mkdir -p $manDir
+	cp $prefix/share/man/man1/* $manDir
+	rm -rf $prefix/share
+}