Added pkg-config file

Author: Jonas Platte

CMakeLists.txt

@@ -5,6 +5,7 @@ ENABLE_TESTING()
 OPTION(JSONCPP_WITH_TESTS "Compile and run JsonCpp test executables" ON)
 OPTION(JSONCPP_WITH_POST_BUILD_UNITTEST "Automatically run unit-tests as a post build step" ON)
 OPTION(JSONCPP_WITH_WARNING_AS_ERROR "Force compilation to fail if a warning occurs" OFF)
+OPTION(JSONCPP_WITH_PKGCONFIG_SUPPORT "Generate and install .pc files" ON)
 
 # Ensures that CMAKE_BUILD_TYPE is visible in cmake-gui on Unix
 IF(NOT WIN32)
@@ -51,6 +52,15 @@ IF(JSONCPP_WITH_WARNING_AS_ERROR)
     UseCompilationWarningAsError()
 ENDIF(JSONCPP_WITH_WARNING_AS_ERROR)
 
+IF(JSONCPP_WITH_PKGCONFIG_SUPPORT)
+	CONFIGURE_FILE(
+		"pkg-config/jsoncpp.pc.in"
+		"pkg-config/jsoncpp.pc"
+		@ONLY)
+	INSTALL(FILES "${CMAKE_BINARY_DIR}/pkg-config/jsoncpp.pc"
+		DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig")
+ENDIF(JSONCPP_WITH_PKGCONFIG_SUPPORT)
+
 # Build the different applications
 ADD_SUBDIRECTORY( src )
 

pkg-config/jsoncpp.pc.in

@@ -0,0 +1,10 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: jsoncpp
+Description: A C++ library for interacting with JSON
+URL: https://github.com/open-source-parsers/jsoncpp
+Libs: -L${libdir} -ljsoncpp
+Cflags: -I${includedir}