From 003083ab9fc7da57835be9697a1ac9bd7a91ef49 Mon Sep 17 00:00:00 2001
From: Jeff Long <willcode4@gmail.com>
Date: Mon, 7 Jun 2021 05:40:57 -0400
Subject: [PATCH] cmake: add "uninstall" target

Signed-off-by: Jeff Long <willcode4@gmail.com>
---
 CMakeLists.txt                 | 10 ++++++++++
 cmake/cmake_uninstall.cmake.in | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 cmake/cmake_uninstall.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index aa0151c..d5581ce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -200,3 +200,13 @@ else()
 		endif()
 	endif()
 endif()
+
+########################################################################
+# uninstall target
+########################################################################
+add_custom_target(uninstall
+    "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+    IMMEDIATE @ONLY)
diff --git a/cmake/cmake_uninstall.cmake.in b/cmake/cmake_uninstall.cmake.in
new file mode 100644
index 0000000..9ae1ae4
--- /dev/null
+++ b/cmake/cmake_uninstall.cmake.in
@@ -0,0 +1,32 @@
+# http://www.vtk.org/Wiki/CMake_FAQ#Can_I_do_.22make_uninstall.22_with_CMake.3F
+
+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}${file}\"")
+  IF(EXISTS "$ENV{DESTDIR}${file}")
+    EXEC_PROGRAM(
+      "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+      OUTPUT_VARIABLE rm_out
+      RETURN_VALUE rm_retval
+      )
+    IF(NOT "${rm_retval}" STREQUAL 0)
+      MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
+    ENDIF(NOT "${rm_retval}" STREQUAL 0)
+  ELSEIF(IS_SYMLINK "$ENV{DESTDIR}${file}")
+    EXEC_PROGRAM(
+      "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+      OUTPUT_VARIABLE rm_out
+      RETURN_VALUE rm_retval
+      )
+    IF(NOT "${rm_retval}" STREQUAL 0)
+      MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
+    ENDIF(NOT "${rm_retval}" STREQUAL 0)
+  ELSE(EXISTS "$ENV{DESTDIR}${file}")
+    MESSAGE(STATUS "File \"$ENV{DESTDIR}${file}\" does not exist.")
+  ENDIF(EXISTS "$ENV{DESTDIR}${file}")
+ENDFOREACH(file)