yajl: add yajl

Adds YAJL (Yet Another JSON Library), a C library for parsing JSON.
Includes patches for uClibc support.
Improved from version used internally at Who's On My WiFi since Feb 2014.
Adds myself as maintainer.

Signed-off-by: Charles Southerland <charlie@stuphlabs.com>

libs/yajl/Makefile

@@ -0,0 +1,59 @@
+# 
+# Copyright (C) 2014, 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=yajl
+PKG_VERSION:=2.1.0
+PKG_RELEASE:=1
+PKG_MAINTAINER:=Charles Southerland <charlie@stuphlabs.com>
+PKG_LICENSE:=ISC
+PKG_LICENSE_FILES:=COPYING
+PKG_REV:=66cb08ca2ad8581080b626a75dfca266a890afb2
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+PKG_SOURCE_VERSION:=$(PKG_REV)
+PKG_SOURCE_URL:=git://github.com/lloyd/yajl.git
+PKG_SOURCE_PROTO:=git
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/yajl
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=Yet Another JSON Library
+  URL:=http://lloyd.github.io/yajl
+endef
+
+define Package/yajl/description
+  Yet Another JSON Library. YAJL is a small event-driven (SAX-style)
+JSON parser written in ANSI C, and a small validating JSON generator.
+YAJL is released under the ISC license.
+
+  YAJL was created by Lloyd Hilaiel.
+endef
+
+PKG_INSTALL:=1
+
+CMAKE_OPTIONS += \
+	-DCMAKE_BUILD_TYPE:String="Release" 
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include
+	$(CP) $(PKG_INSTALL_DIR)/usr/include/yajl $(1)/usr/include/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libyajl.so* $(1)/usr/lib/
+endef
+
+define Package/yajl/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libyajl.so* $(1)/usr/lib/
+endef
+
+$(eval $(call BuildPackage,yajl))

libs/yajl/patches/100-link-reformatter-uclibc-libm.patch

@@ -0,0 +1,11 @@
+--- a/reformatter/CMakeLists.txt
++++ b/reformatter/CMakeLists.txt
+@@ -26,7 +26,7 @@
+ 
+ ADD_EXECUTABLE(json_reformat ${SRCS})
+ 
+-TARGET_LINK_LIBRARIES(json_reformat yajl_s)
++TARGET_LINK_LIBRARIES(json_reformat yajl_s m)
+ 
+ # copy the binary into the output directory
+ GET_TARGET_PROPERTY(binPath json_reformat LOCATION)

libs/yajl/patches/101-link-perf-uclibc-libm.patch

@@ -0,0 +1,8 @@
+--- a/perf/CMakeLists.txt
++++ b/perf/CMakeLists.txt
+@@ -20,4 +20,4 @@
+ 
+ ADD_EXECUTABLE(perftest ${SRCS})
+ 
+-TARGET_LINK_LIBRARIES(perftest yajl_s)
++TARGET_LINK_LIBRARIES(perftest yajl_s m)