package/pngquant: new package

The host package will be needed by tvheadend.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Thomas:
 - group the host commands together and the target commands together
 - use --prefix=$(HOST_DIR)/usr for host configuration, and do not
   override PREFIX= at host install time
 - use DESTDIR=$(TARGET_DIR) instead of overriding PREFIX= at target
   install time.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

DEVELOPERS

@@ -250,6 +250,7 @@ F:	package/perl-timedate/
 F:	package/perl-uri/
 F:	package/perl-www-robotrules/
 F:	package/pixman/
+F:	package/pngquant/
 F:	package/pound/
 F:	package/pure-ftpd/
 F:	package/python-couchdb/

package/Config.in

@@ -245,6 +245,7 @@ comment "Graphic applications"
 	source "package/jhead/Config.in"
 	source "package/kmscube/Config.in"
 	source "package/mesa3d-demos/Config.in"
+	source "package/pngquant/Config.in"
 	source "package/qt5cinex/Config.in"
 	source "package/rrdtool/Config.in"
 	source "package/tesseract-ocr/Config.in"

package/pngquant/Config.in

@@ -0,0 +1,9 @@
+config BR2_PACKAGE_PNGQUANT
+	bool "pngquant"
+	select BR2_PACKAGE_LIBPNG
+	select BR2_PACKAGE_ZLIB
+	help
+	  Lossy PNG compressor — pngquant command and libimagequant
+	  library
+
+	  https://pngquant.org

package/pngquant/pngquant.hash

@@ -0,0 +1,4 @@
+# From https://pngquant.org/releases.html
+sha1 08ed436e21429d4983bee0fe069681c458f95209  pngquant-2.9.1-src.tar.gz
+# Locally computed
+sha256 ac2138207ef40acd4e5fdae18798139a9d75dae4f1d0837aea918a2a8c433481  pngquant-2.9.1-src.tar.gz

package/pngquant/pngquant.mk

@@ -0,0 +1,53 @@
+################################################################################
+#
+# pngquant
+#
+################################################################################
+
+PNGQUANT_VERSION = 2.9.1
+PNGQUANT_SOURCE = pngquant-$(PNGQUANT_VERSION)-src.tar.gz
+PNGQUANT_SITE = https://pngquant.org
+PNGQUANT_LICENSE = GPL-3.0+
+PNGQUANT_LICENSE_FILES = COPYRIGHT
+HOST_PNGQUANT_DEPENDENCIES = host-libpng
+PNGQUANT_DEPENDENCIES = libpng
+
+ifeq ($(BR2_PACKAGE_LCMS2),y)
+PNGQUANT_DEPENDENCIES += lcms2
+endif
+
+define PNGQUANT_CONFIGURE_CMDS
+	(cd $(@D) && \
+		$(TARGET_CONFIGURE_OPTS) \
+		./configure --prefix=/usr \
+		$(if $(BR2_PACKAGE_LCMS2),--with-lcms2,--without-lcms2) \
+		$(if $(BR2_X86_CPU_HAS_SSE),--enable-sse,--disable-sse) \
+	)
+endef
+
+define PNGQUANT_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)
+endef
+
+define PNGQUANT_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) DESTDIR="$(TARGET_DIR)" -C $(@D) install
+endef
+
+define HOST_PNGQUANT_CONFIGURE_CMDS
+	(cd $(@D) && \
+		$(HOST_CONFIGURE_OPTS) \
+		./configure --prefix=$(HOST_DIR)/usr \
+		--without-lcms2 \
+	)
+endef
+
+define HOST_PNGQUANT_BUILD_CMDS
+	$(HOST_MAKE_ENV) $(MAKE) -C $(@D)
+endef
+
+define HOST_PNGQUANT_INSTALL_CMDS
+	$(HOST_MAKE_ENV) $(MAKE) -C $(@D) install
+endef
+
+$(eval $(host-generic-package))
+$(eval $(generic-package))