nghttp2: import from core

As package curl has been imported from core and only libcurl depends on
nghttp2 import it as well from core repo

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

libs/nghttp2/Makefile

@@ -0,0 +1,44 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=nghttp2
+PKG_VERSION:=1.41.0
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
+PKG_SOURCE_URL:=https://github.com/nghttp2/nghttp2/releases/download/v$(PKG_VERSION)
+PKG_HASH:=abc25b8dc601f5b3fefe084ce50fcbdc63e3385621bee0cbfa7b57f9ec3e67c2
+
+PKG_LICENSE:=MIT
+PKG_LICENSE_FILES:=COPYING
+CMAKE_INSTALL:=1
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/libnghttp2
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=Library implementing the framing layer of HTTP/2
+  MAINTAINER:=Hans Dedecker <dedeckeh@gmail.com>
+  ABI_VERSION:=14
+endef
+
+define Package/libnghttp2/description
+ C library implementing the framing layer of the HTTP/2 protocol. It can be used to build a HTTP/2-capable HTTP client or server
+endef
+
+CMAKE_OPTIONS += \
+        -DENABLE_LIB_ONLY=ON
+
+define Build/InstallDev
+	$(call Build/InstallDev/cmake,$(1))
+	$(SED) 's,/usr/include,$$$${prefix}/include,g' $(1)/usr/lib/pkgconfig/libnghttp2.pc
+	$(SED) 's,/usr/lib,$$$${prefix}/lib,g' $(1)/usr/lib/pkgconfig/libnghttp2.pc
+endef
+
+define Package/libnghttp2/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnghttp2.so.* $(1)/usr/lib
+endef
+
+$(eval $(call BuildPackage,libnghttp2))