diff --git a/CMakeLists.txt b/CMakeLists.txt
index 68cf920..9c60803 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,8 @@
 #Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 cmake_minimum_required(VERSION 2.8.7)
-project(json-c)
+project(json-c C)
+set(VERSION "0.12.99")
 
 if(MSVC)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4100 /wd4996 /wd4244 /wd4706 /wd4702 /wd4127 /wd4701")
@@ -97,3 +98,11 @@ install(TARGETS json-c json-c-static
 
 install(DIRECTORY . DESTINATION ${CMAKE_INSTALL_PREFIX}/include/json-c FILES_MATCHING PATTERN "*.h")
 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/ DESTINATION ${CMAKE_INSTALL_PREFIX}/include/json-c FILES_MATCHING PATTERN "*.h")
+
+if(UNIX)
+  set(INSTALL_LIB_DIR ${CMAKE_INSTALL_PREFIX}/lib)
+  set(INSTALL_INC_DIR ${CMAKE_INSTALL_PREFIX}/include)
+  configure_file( json-c.pc.cmake.in libjson-c.pc @ONLY)
+  set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
+  install(FILES ${CMAKE_BINARY_DIR}/libjson-c.pc DESTINATION "${INSTALL_PKGCONFIG_DIR}")
+endif()
diff --git a/configure.ac b/configure.ac
index d29a387..622a416 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,7 +52,7 @@ AC_PROG_CC_C99
 AC_CONFIG_HEADER(config.h)
 AC_CONFIG_HEADER(json_config.h)
 AC_HEADER_STDC
-AC_CHECK_HEADERS(fcntl.h limits.h strings.h syslog.h unistd.h [sys/cdefs.h] [sys/param.h] stdarg.h locale.h xlocale.h endian.h)
+AC_CHECK_HEADERS(fcntl.h limits.h strings.h syslog.h unistd.h [sys/cdefs.h] [sys/param.h] stdarg.h endian.h)
 AC_CHECK_HEADER(inttypes.h,[AC_DEFINE([JSON_C_HAVE_INTTYPES_H],[1],[Public define for json_inttypes.h])])
 
 # Checks for typedefs, structures, and compiler characteristics.
@@ -75,7 +75,7 @@ AS_IF([test "x$ac_cv___thread" != xno],
 AC_FUNC_VPRINTF
 AC_FUNC_MEMCMP
 AC_CHECK_FUNCS([realloc])
-AC_CHECK_FUNCS(strcasecmp strdup strerror snprintf vsnprintf vasprintf open vsyslog strncasecmp setlocale)
+AC_CHECK_FUNCS(strcasecmp strdup strerror snprintf vsnprintf vasprintf open vsyslog strncasecmp)
 AC_CHECK_DECLS([INFINITY], [], [], [[#include <math.h>]])
 AC_CHECK_DECLS([nan], [], [], [[#include <math.h>]])
 AC_CHECK_DECLS([isnan], [], [], [[#include <math.h>]])
@@ -165,7 +165,7 @@ AS_IF([test "x$enable_Bsymbolic" = "xcheck"],
 AS_IF([test "x$enable_Bsymbolic" = "xyes"], [JSON_BSYMBOLIC_LDFLAGS=-Wl[,]-Bsymbolic-functions])
 AC_SUBST(JSON_BSYMBOLIC_LDFLAGS)
 
-AX_APPEND_COMPILE_FLAGS([-Wall -Werror -Wcast-qual -Wno-error=deprecated-declarations])
+AX_APPEND_COMPILE_FLAGS([-Wall -Wcast-qual -Wno-error=deprecated-declarations])
 AX_APPEND_COMPILE_FLAGS([-Wextra -Wwrite-string -Wno-unused-parameter])
 AX_APPEND_COMPILE_FLAGS([-D_GNU_SOURCE -D_REENTRANT])
 
diff --git a/json-c.pc.cmake.in b/json-c.pc.cmake.in
new file mode 100644
index 0000000..94b2bb6
--- /dev/null
+++ b/json-c.pc.cmake.in
@@ -0,0 +1,13 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@INSTALL_LIB_DIR@
+sharedlibdir=@INSTALL_LIB_DIR@
+includedir=@INSTALL_INC_DIR@
+
+Name: json-c
+Description: A JSON implementation in C
+Version: @VERSION@
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -ljson-c
+Cflags: -I${includedir}/json-c