From c94670a8cd39f8a8843e9adba2a6030adb00ac94 Mon Sep 17 00:00:00 2001
From: kinichiro <kinichiro.inoguchi@gmail.com>
Date: Thu, 7 Apr 2016 15:10:01 +0900
Subject: [PATCH] add cmake uninstall functionality

- add uninstall functionality
  * see https://cmake.org/Wiki/CMake_FAQ#Can_I_do_.22make_uninstall.22_with_CMake.3F
---
 CMakeLists.txt           |  8 ++++++++
 Makefile.am              |  2 +-
 cmake_uninstall.cmake.in | 21 +++++++++++++++++++++
 3 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 cmake_uninstall.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cecaafe..9e12909 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -224,3 +224,11 @@ if(NOT MSVC)
 	add_subdirectory(man)
 	add_subdirectory(tests)
 endif()
+
+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/Makefile.am b/Makefile.am
index d92f347..48da18b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,7 +5,7 @@ pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libcrypto.pc libssl.pc libtls.pc openssl.pc
 
 EXTRA_DIST = README.md README.windows VERSION config scripts
-EXTRA_DIST += CMakeLists.txt
+EXTRA_DIST += CMakeLists.txt cmake_uninstall.cmake.in
 
 .PHONY: install_sw
 install_sw: install
diff --git a/cmake_uninstall.cmake.in b/cmake_uninstall.cmake.in
new file mode 100644
index 0000000..bb8055d
--- /dev/null
+++ b/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)