From 2334aa86b152ed6f7b18407c516cb1c1988b44f2 Mon Sep 17 00:00:00 2001
From: Wander Lairson Costa <wander.lairson@gmail.com>
Date: Mon, 16 Jun 2014 10:58:09 -0300
Subject: [PATCH] Add suport for "make uninstall" to cmake.

---
 CMakeLists.txt           |  9 +++++++++
 cmake_uninstall.cmake.in | 18 ++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 cmake_uninstall.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fab9150ce..6e993a7f1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1308,3 +1308,12 @@ else()
   install(TARGETS SDL2 RUNTIME DESTINATION bin)
 endif()
 
+##### Uninstall target #####
+
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+    IMMEDIATE @ONLY)
+
+add_custom_target(uninstall
+    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
diff --git a/cmake_uninstall.cmake.in b/cmake_uninstall.cmake.in
new file mode 100644
index 000000000..e3a5a4be9
--- /dev/null
+++ b/cmake_uninstall.cmake.in
@@ -0,0 +1,18 @@
+if (NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+    message(FATAL_ERROR "Cannot find install manifest: \"@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt\"")
+endif(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+
+file(READ "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+foreach (file ${files})
+    message(STATUS "Uninstalling \"$ENV{DESTDIR}${file}\"")
+    execute_process(
+        COMMAND @CMAKE_COMMAND@ -E remove "$ENV{DESTDIR}${file}"
+        OUTPUT_VARIABLE rm_out
+        RESULT_VARIABLE rm_retval
+    )
+    if(NOT ${rm_retval} EQUAL 0)
+        message(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
+    endif (NOT ${rm_retval} EQUAL 0)
+endforeach(file)
+