SUMMARY = "PNG image format decoding library"
DESCRIPTION = "An open source project to develop and maintain the reference \
library for use in applications that read, create, and manipulate PNG \
(Portable Network Graphics) raster image files. "
HOMEPAGE = "http://www.libpng.org/"
SECTION = "libs"
LICENSE = "Libpng"
LIC_FILES_CHKSUM = "file://LICENSE;md5=5c900cc124ba35a274073b5de7639b13"
DEPENDS = "zlib"

LIBV = "16"

SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/${BP}.tar.xz"
SRC_URI[sha256sum] = "1f4696ce70b4ee5f85f1e1623dc1229b210029fa4b7aee573df3e2ba7b036937"

MIRRORS += "${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/ ${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/older-releases/"

UPSTREAM_CHECK_URI = "http://libpng.org/pub/png/libpng.html"

BINCONFIG = "${bindir}/libpng-config ${bindir}/libpng16-config"

inherit autotools binconfig-disabled pkgconfig

# Work around missing symbols
ARMNEON = "${@bb.utils.contains("TUNE_FEATURES", "neon", "--enable-arm-neon=on", "--enable-arm-neon=off", d)}"
ARMNEON:aarch64 = "--enable-hardware-optimizations=on"
EXTRA_OECONF += "${ARMNEON}"

PACKAGES =+ "${PN}-tools"

FILES:${PN}-tools = "${bindir}/png-fix-itxt ${bindir}/pngfix ${bindir}/pngcp"

BBCLASSEXTEND = "native nativesdk"

# CVE-2019-17371 is actually a memory leak in gif2png 2.x
CVE_CHECK_IGNORE += "CVE-2019-17371"