apng2gif: new recipe. gif2apng: polishing. (#910)

media-gfx/apng2gif/apng2gif-1.7.recipe

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+SUMMARY="Converts APNG animations into GIF format"
+DESCRIPTION="This program converts APNG animations into animated GIF format. \
+It performs the reverse of gif2apng."
+HOMEPAGE="http://apng2gif.sourceforge.net/"
+COPYRIGHT="2009-2015 Max Stepin"
+LICENSE="Zlib"
+REVISION="1"
+SOURCE_URI="https://downloads.sourceforge.net/apng2gif/apng2gif-$portVersion-src.zip"
+CHECKSUM_SHA256="6c7b2cce851378f2fc8f6b490ce098e9cf0038aa05da7099771c8be94620e6ca"
+SOURCE_DIR=""
+
+ARCHITECTURES="x86_gcc2 x86 x86_64"
+
+if [ "$targetArchitecture" = x86_gcc2 ]; then
+	LIBS="-lstdc++.r4 -lpng -lz"
+else
+	LIBS="-lstdc++ -lpng -lz"
+fi
+
+PROVIDES="
+	apng2gif = $portVersion
+	cmd:apng2gif = $portVersion
+	"
+REQUIRES="
+	haiku
+	lib:libpng
+	lib:libz
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	devel:libpng
+	devel:libz
+	"
+BUILD_PREREQUIRES="
+	cmd:gcc
+	cmd:ld
+	cmd:make
+	"
+
+BUILD()
+{
+	make LIBS="$LIBS"
+}
+
+INSTALL()
+{
+	install -d -m 755 $binDir $docDir
+	install -t $binDir -c -m 555 -s apng2gif
+	install -t $docDir -c -m 444 readme.txt
+}