From 7c03ae56c901a83c8b83a769d4782dc552eb96a6 Mon Sep 17 00:00:00 2001
From: Paul Fd <paul@ferrand.cc>
Date: Sat, 14 Mar 2020 09:51:32 +0100
Subject: [PATCH] Add the uninstall target using uninstall-manifest

---
 cmake/MakeUninstall.cmake.in | 21 +++++++++++++++++++++
 cmake/SfizzConfig.cmake      | 11 +++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 cmake/MakeUninstall.cmake.in

diff --git a/cmake/MakeUninstall.cmake.in b/cmake/MakeUninstall.cmake.in
new file mode 100644
index 00000000..c2d34d47
--- /dev/null
+++ b/cmake/MakeUninstall.cmake.in
@@ -0,0 +1,21 @@
+if(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
+  message(FATAL_ERROR "Cannot find install manifest: @CMAKE_BINARY_DIR@/install_manifest.txt")
+endif()
+
+file(READ "@CMAKE_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()
+  else(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+    message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+  endif()
+endforeach()
diff --git a/cmake/SfizzConfig.cmake b/cmake/SfizzConfig.cmake
index 81184a87..6ad1aae4 100644
--- a/cmake/SfizzConfig.cmake
+++ b/cmake/SfizzConfig.cmake
@@ -94,4 +94,15 @@ Compiler CXX min size flags:   ${CMAKE_CXX_FLAGS_MINSIZEREL}
     endif()
 endfunction()
 
+if(NOT TARGET uninstall)
+    configure_file(
+        "${CMAKE_CURRENT_SOURCE_DIR}/cmake/MakeUninstall.cmake.in"
+        "${CMAKE_CURRENT_BINARY_DIR}/MakeUninstall.cmake"
+        IMMEDIATE @ONLY)
+
+    add_custom_target(uninstall
+        COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/MakeUninstall.cmake)
+endif()
+
+
 find_package (Threads REQUIRED)