cmake: update uninstall target

- update cmake_uninstall.cmake.in from
  https://cmake.org/Wiki/CMake_FAQ#Can_I_do_.22make_uninstall.22_with_CMake.3F
  and move the file to /CMakeScripts
- on WIN32 simply delete the whole distribution directory
  (should be sufficient ant the script version is unbearably slow)

3 files changed, 33 insertions, 31 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c91713ee9..a42a317fa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -177,13 +177,17 @@ add_custom_target(dist
 # -----------------------------------------------------------------------------
 # 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
-    "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+if(WIN32)
+    add_custom_target(uninstall
+        "${CMAKE_COMMAND}" -E remove_directory "${CMAKE_INSTALL_PREFIX}")
+else()
+    configure_file(
+        "${CMAKE_SOURCE_DIR}/CMakeScripts/cmake_uninstall.cmake.in"
+        "${CMAKE_BINARY_DIR}/cmake_uninstall.cmake"
+        @ONLY)
+    add_custom_target(uninstall
+        "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+endif()
 
 
 # -----------------------------------------------------------------------------
@@ -198,7 +202,7 @@ endif(ENABLE_NLS)
 if(NOT WIN32)
     include(CMakeScripts/Pod2man.cmake)
     add_subdirectory(man)
-endif(NOT WIN32)
+endif()
 
 # -----------------------------------------------------------------------------
 # Installation
diff --git a/CMakeScripts/cmake_uninstall.cmake.in b/CMakeScripts/cmake_uninstall.cmake.in
new file mode 100644
index 000000000..2037e3653
--- /dev/null
+++ b/CMakeScripts/cmake_uninstall.cmake.in
@@ -0,0 +1,21 @@
+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}")
+    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 "${rm_retval}" STREQUAL 0)
+  else(IS_SYMLINK "$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)
diff --git a/cmake_uninstall.cmake.in b/cmake_uninstall.cmake.in
deleted file mode 100644
index cd2001a16..000000000
--- a/cmake_uninstall.cmake.in
+++ /dev/null
@@ -1,23 +0,0 @@
-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}${file}\""
-      OUTPUT_VARIABLE rm_out
-      RETURN_VALUE rm_retval
-      )
-    IF("${rm_retval}" STREQUAL 0)
-    ELSE("${rm_retval}" STREQUAL 0)
-      MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
-    ENDIF("${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)
-