added uninstall target

Author: krzysg

CMakeLists.txt

@@ -124,8 +124,15 @@ if(APR_INSTALL)
     install(FILES ${PROJECT_BINARY_DIR}/ConfigAPR.h COMPONENT DEV DESTINATION include/apr/io)
     install(FILES ${PROJECT_BINARY_DIR}/ConfigAPR.h COMPONENT DEV DESTINATION include/apr)
 
+    # pkg-config
     configure_file("${CMAKE_CURRENT_SOURCE_DIR}/cmake/apr.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/apr.pc" @ONLY)
     install(FILES "${CMAKE_CURRENT_BINARY_DIR}/apr.pc" DESTINATION lib/pkgconfig COMPONENT DEV)
+
+    # uninstall
+    configure_file("${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake-uninstall.cmake.in"
+            "${CMAKE_CURRENT_BINARY_DIR}/cmake-uninstall.cmake"
+            IMMEDIATE @ONLY)
+    add_custom_target(uninstall COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake-uninstall.cmake)
 endif(APR_INSTALL)