Add the uninstall target

Signed-off-by: Lukasz Dorau <[email protected]>

Author: ldorau

CMakeLists.txt

@@ -170,3 +170,11 @@ install(
         ${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}-config.cmake
         ${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}-config-version.cmake
     DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
+
+configure_file(
+    "${CMAKE_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+    IMMEDIATE @ONLY)
+
+add_custom_target(uninstall
+    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)

cmake/cmake_uninstall.cmake.in

@@ -0,0 +1,23 @@
+# From: https://cmake.org/Uncyclo/CMake_FAQ
+
+if(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+	message(FATAL_ERROR "Cannot find install manifest: @CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+endif(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+
+file(READ "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+foreach(file ${files})
+	message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
+	if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+		execute_process(
+			COMMAND @CMAKE_COMMAND@ -E remove $ENV{DESTDIR}${file}
+			OUTPUT_VARIABLE rm_out
+			RESULT_VARIABLE rm_retval
+		)
+		if(NOT "${rm_retval}" STREQUAL 0)
+			message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
+		endif(NOT "${rm_retval}" STREQUAL 0)
+	else(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+		message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+	endif(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+endforeach(file)