Merge from bittboy/buildroot@db180c0

package/zstd/Config.in

@@ -0,0 +1,12 @@
+config BR2_PACKAGE_ZSTD
+	bool "zstd"
+	help
+	  Zstandard, or zstd as short version, is a fast lossless
+	  compression algorithm, targeting real-time compression
+	  scenarios at zlib-level and better compression ratios
+
+	  The selection of other packages will enable some features:
+	  xz, lz4 and/or zlib will enable support for corresponding
+	  compression formats
+
+	  https://facebook.github.io/zstd

package/zstd/Config.in.host

@@ -0,0 +1,8 @@
+config BR2_PACKAGE_HOST_ZSTD
+	bool "host zstd"
+	help
+	  Zstandard, or zstd as short version, is a fast lossless
+	  compression algorithm, targeting real-time compression
+	  scenarios at zlib-level and better compression ratios
+
+	  https://facebook.github.io/zstd

package/zstd/zstd.hash

@@ -0,0 +1,6 @@
+# Locally computed
+sha256 7a6e1dad34054b35e2e847eb3289be8820a5d378228802239852f913c6dcf6a7 zstd-1.4.2.tar.gz
+
+# License files (locally computed as well)
+sha256 2c1a7fa704df8f3a606f6fc010b8b5aaebf403f3aeec339a12048f1ba7331a0b LICENSE
+sha256 f9c375a1be4a41f7b70301dd83c91cb89e41567478859b77eef375a52d782505 COPYING

package/zstd/zstd.mk

@@ -0,0 +1,87 @@
+################################################################################
+#
+# zstd
+#
+################################################################################
+
+ZSTD_VERSION = 1.4.2
+ZSTD_SITE = $(call github,facebook,zstd,v$(ZSTD_VERSION))
+ZSTD_INSTALL_STAGING = YES
+ZSTD_LICENSE = BSD-3-Clause or GPL-2.0
+ZSTD_LICENSE_FILES = LICENSE COPYING
+
+ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
+ZSTD_OPTS += HAVE_THREAD=1
+else
+ZSTD_OPTS += HAVE_THREAD=0
+endif
+
+ifeq ($(BR2_PACKAGE_ZLIB),y)
+ZSTD_DEPENDENCIES += zlib
+ZSTD_OPTS += HAVE_ZLIB=1
+else
+ZSTD_OPTS += HAVE_ZLIB=0
+endif
+
+ifeq ($(BR2_PACKAGE_XZ),y)
+ZSTD_DEPENDENCIES += xz
+ZSTD_OPTS += HAVE_LZMA=1
+else
+ZSTD_OPTS += HAVE_LZMA=0
+endif
+
+ifeq ($(BR2_PACKAGE_LZ4),y)
+ZSTD_DEPENDENCIES += lz4
+ZSTD_OPTS += HAVE_LZ4=1
+else
+ZSTD_OPTS += HAVE_LZ4=0
+endif
+
+ifeq ($(BR2_STATIC_LIBS),y)
+ZSTD_BUILD_LIBS = libzstd.a
+ZSTD_INSTALL_LIBS = install-static
+else ifeq ($(BR2_SHARED_LIBS),y)
+ZSTD_BUILD_LIBS = libzstd
+ZSTD_INSTALL_LIBS = install-shared
+else
+ZSTD_BUILD_LIBS = libzstd.a libzstd
+ZSTD_INSTALL_LIBS = install-static install-shared
+endif
+
+define ZSTD_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) $(ZSTD_OPTS) \
+		-C $(@D)/lib $(ZSTD_BUILD_LIBS)
+	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) $(ZSTD_OPTS) \
+		-C $(@D) zstd
+endef
+
+define ZSTD_INSTALL_STAGING_CMDS
+	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) $(ZSTD_OPTS) \
+		DESTDIR=$(STAGING_DIR) PREFIX=/usr -C $(@D)/lib \
+		install-pc install-includes $(ZSTD_INSTALL_LIBS)
+endef
+
+define ZSTD_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) $(ZSTD_OPTS) \
+		DESTDIR=$(TARGET_DIR) PREFIX=/usr -C $(@D)/programs install
+	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) $(ZSTD_OPTS) \
+		DESTDIR=$(TARGET_DIR) PREFIX=/usr -C $(@D)/lib $(ZSTD_INSTALL_LIBS)
+endef
+
+# note: no 'HAVE_...' options for host library build only
+define HOST_ZSTD_BUILD_CMDS
+	$(HOST_MAKE_ENV) $(HOST_CONFIGURE_OPTS) $(MAKE) \
+		-C $(@D)/lib
+	$(HOST_MAKE_ENV) $(HOST_CONFIGURE_OPTS) $(MAKE) \
+		-C $(@D) zstd
+endef
+
+define HOST_ZSTD_INSTALL_CMDS
+	$(HOST_MAKE_ENV) $(HOST_CONFIGURE_OPTS) $(MAKE) \
+		DESTDIR=$(HOST_DIR) PREFIX=/usr -C $(@D)/lib install
+	$(HOST_MAKE_ENV) $(HOST_CONFIGURE_OPTS) $(MAKE) \
+		DESTDIR=$(HOST_DIR) PREFIX=/usr -C $(@D)/programs install
+endef
+
+$(eval $(generic-package))
+$(eval $(host-generic-package))