Merge lp:~ter0/audience/fix-1169372 into lp:~audience-members/audience/trunk

[Chris Johns]

Added uninstall.

[Corentin Noël (tintou)]

This is indeed the way written in the CMake FAQ
http://www.cmake.org/Wiki/CMake_FAQ#Can_I_do_.22make_uninstall.22_with_CMake.3F

review: Approve

=== modified file 'CMakeLists.txt'
--- CMakeLists.txt	2013-04-01 05:05:19 +0000
+++ CMakeLists.txt	2014-01-11 15:01:00 +0000
@@ -88,3 +88,12 @@
 add_subdirectory (po)
 add_executable(audience ${VALA_C})
 install (TARGETS audience RUNTIME DESTINATION bin)
+
+# uninstall target
+configure_file(
+    "${CMAKE_SOURCE_DIR}/cmake/Uninstall.cmake"
+    "${CMAKE_CURRENT_BINARY_DIR}/Uninstall.cmake"
+    IMMEDIATE @ONLY)
+
+add_custom_target(uninstall
+    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/Uninstall.cmake)

=== added file 'cmake/Uninstall.cmake'
--- cmake/Uninstall.cmake	1970-01-01 00:00:00 +0000
+++ cmake/Uninstall.cmake	2014-01-11 15:01:00 +0000
@@ -0,0 +1,23 @@
+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}")
+cmake_policy (SET CMP0007 NEW)
+list(REVERSE files)
+foreach (file ${files})
+    message(STATUS "Uninstalling \"$ENV{DESTDIR}${file}\"")
+    if (EXISTS "$ENV{DESTDIR}${file}")
+        execute_process(
+            COMMAND @CMAKE_COMMAND@ -E remove "$ENV{DESTDIR}${file}"
+            OUTPUT_VARIABLE rm_out
+            RESULT_VARIABLE rm_retval
+        )
+        if(NOT ${rm_retval} EQUAL 0)
+            message(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
+        endif (NOT ${rm_retval} EQUAL 0)
+    else (EXISTS "$ENV{DESTDIR}${file}")
+        message(STATUS "File \"$ENV{DESTDIR}${file}\" does not exist.")
+    endif (EXISTS "$ENV{DESTDIR}${file}")
+endforeach(file)