Add support for pkgconfig

Author: dermariusz

CMakeLists.txt

@@ -130,6 +130,9 @@ write_basic_package_version_file("${PROJECT_BINARY_DIR}/docopt-config-version.cm
 install(FILES docopt-config.cmake ${PROJECT_BINARY_DIR}/docopt-config-version.cmake DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/docopt")
 install(EXPORT ${export_name} DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/docopt")
 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/docopt.pc.in ${CMAKE_CURRENT_BINARY_DIR}/docopt.pc @ONLY)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/docopt.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+
 #============================================================================
 # CPack
 #============================================================================

docopt.pc.in

@@ -0,0 +1,9 @@
+libdir=@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@
+includedir=@CMAKE_INSTALL_PREFIX@/include/docopt
+
+Name: docopt.cpp
+Description: C++11 port of docopt
+Version: @PROJECT_VERSION@
+Requires:
+Libs: -L${libdir} -ldocopt
+Cflags: -I${includedir}