Create and install a compatible header (withouth extension) to enable

drop-in replacement with a future library implementation (#59).

CMakeLists.txt

@@ -7,6 +7,8 @@ set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
 option(UNITTEST "Build Unit Tests" ON)
 option(COVERAGE "Enable Coverage" OFF)
 message(STATUS "Coverage : ${COVERAGE}")
+option(ENABLE_COMPAT_HEADER "Enable compatible header 'scope'" OFF)
+message(STATUS "Compatible Header : ${ENABLE_COMPAT_HEADER}")
 
 
 if( CMAKE_BUILD_TYPE )
@@ -35,10 +37,23 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
 
+
+
 add_library(ScopeGuard INTERFACE)
 target_include_directories(ScopeGuard INTERFACE
                        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
-                       $<INSTALL_INTERFACE:include>)
+                       $<INSTALL_INTERFACE:include>
+                       )
+
+if( ENABLE_COMPAT_HEADER )
+    configure_file(cmake/scope.in generated/scope COPYONLY)
+
+    target_include_directories(ScopeGuard INTERFACE
+                           $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/generated>
+                           $<INSTALL_INTERFACE:include>
+                           )
+endif()
+
 
 
 if( UNITTEST )

cmake/Install.cmake

@@ -1,4 +1,9 @@
 
 install(TARGETS ScopeGuard EXPORT ScopeGuard-config DESTINATION include)
 install(DIRECTORY "${CMAKE_SOURCE_DIR}/include/" DESTINATION include)
+
+if( ENABLE_COMPAT_HEADER )
+    install(DIRECTORY "${CMAKE_BINARY_DIR}/generated/" DESTINATION include)
+endif()
+
 install(EXPORT ScopeGuard-config DESTINATION share/scopeguard/cmake)

cmake/scope.in

@@ -0,0 +1,24 @@
+/*
+ * Scope Guard
+ * Copyright (C) 2017  offa
+ *
+ * This file is part of Scope Guard.
+ *
+ * Scope Guard is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Scope Guard is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Scope Guard.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "scope.h"
+