$NetBSD: patch-CMakeLists.txt,v 1.2 2020/06/01 10:30:03 js Exp $

Fix use of CMAKE_MODULE_PATH (see also patch-cmake_VersionString.cmake)

Resolve "Attempt at a recursive or nested TRY_COMPILE in directory"
(see also patch-cmake_CompileCheck.cmake)

and

Rename VERSION to ARX_VERSION so that __has_include(<version>) does not
pick it up on a case-insensitive file system on Darwin.

and

commit 60e43c3cbf3fb0aa10cc3092b2512ccebb60b80d
Author: Daniel Scharrer <daniel@constexpr.org>
Date:   Tue Feb 23 07:04:11 2016 +0100

    CMake: Bump policy version to 3.4
    
    Amongst other things, this makes the build system more rubust against
    stray variables coming from included CMake scripts provided by the
    system by disabling variable expansion for quoted strings in if().
    
    Fixes build with CMake 3.5 (tested with 3.5.0-rc3).


--- CMakeLists.txt.orig	2013-10-17 17:25:04.000000000 +0000
+++ CMakeLists.txt
@@ -13,6 +13,11 @@ else()
 	cmake_minimum_required(VERSION 2.8)
 endif()
 
+if(CMAKE_VERSION VERSION_GREATER 3.4)
+	cmake_policy(VERSION 3.4)
+else()
+	cmake_policy(VERSION ${CMAKE_VERSION})
+endif()
 
 # Define configuration options
 
@@ -174,10 +179,12 @@ mark_as_advanced(
 # Helper scrips
 
 include(CheckCXXSourceCompiles)
+include(CheckIncludeFiles)
 include(CheckSymbolExists)
 include(CheckTypeSize)
 
-set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake") # For custom cmake modules
+set(CMAKE_CUSTOM_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake") # For custom cmake modules
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CUSTOM_MODULE_PATH}) # For custom cmake modules
 include(BuildSystem)
 include(BuildType)
 include(CompileCheck)
@@ -406,15 +413,15 @@ if(NOT MSVC)
 	endif()
 	
 	# Not a symbol, so we can't use check_symbol_exists
-	check_compile(ARX_HAVE_BUILTIN_TRAP
-		"${CMAKE_MODULE_PATH}/check_compiler_builtin_trap.cpp"
-		"__builtin_trap" "compiler feature"
-	)
-	
-	check_compile(ARX_HAVE_ATTRIBUTE_FORMAT_PRINTF
-		"${CMAKE_MODULE_PATH}/check_compiler_attribute_format_printf.cpp"
-		"__attribute__((format(printf, i, j)))" "compiler feature"
-	)
+	#check_compile(ARX_HAVE_BUILTIN_TRAP
+	#	"${CMAKE_MODULE_PATH}/check_compiler_builtin_trap.cpp"
+	#	"__builtin_trap" "compiler feature"
+	#)
+	
+	#check_compile(ARX_HAVE_ATTRIBUTE_FORMAT_PRINTF
+	#	"${CMAKE_MODULE_PATH}/check_compiler_attribute_format_printf.cpp"
+	#	"__attribute__((format(printf, i, j)))" "compiler feature"
+	#)
 	
 	check_symbol_exists(nanosleep "time.h" ARX_HAVE_NANOSLEEP)
 	
@@ -951,7 +958,7 @@ configure_file("${SRC_DIR}/${PLATFORM_CO
 
 set(VERSION_TEMPLATE "${SRC_DIR}/core/Version.cpp.in")
 set(VERSION_FILE     "${CMAKE_BINARY_DIR}/core/Version.cpp")
-set(VERSION_SOURCES  VERSION "VERSION" AUTHORS "AUTHORS")
+set(VERSION_SOURCES  VERSION "ARX_VERSION" AUTHORS "AUTHORS")
 file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/core")
 version_file("${VERSION_TEMPLATE}" "${VERSION_FILE}" "${VERSION_SOURCES}" ".git")
 list(APPEND ARX_SOURCES "${VERSION_FILE}")