From 4f0ca73be60ff91f4680f548838749dec6cf7474 Mon Sep 17 00:00:00 2001
From: Armin Novak <anovak@thincast.com>
Date: Wed, 26 Jul 2023 14:47:08 +0200
Subject: [PATCH] [cmake] set MSVC runtime for SDL client

---
 CMakeLists.txt            |  2 +-
 client/SDL/CMakeLists.txt | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7a7c21507..f5e9a02be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -249,7 +249,7 @@ endif()
 if(MSVC)
 	include(MSVCRuntime)
 	if(NOT DEFINED MSVC_RUNTIME)
-		set(MSVC_RUNTIME "dynamic")
+		set(MSVC_RUNTIME "dynamic" CACHE STRING "MSVC runtime type [dynamic|static]")
 	endif()
 	if(MSVC_RUNTIME STREQUAL "static")
 		if(BUILD_SHARED_LIBS)
diff --git a/client/SDL/CMakeLists.txt b/client/SDL/CMakeLists.txt
index 5658c00e7..9f9971499 100644
--- a/client/SDL/CMakeLists.txt
+++ b/client/SDL/CMakeLists.txt
@@ -39,6 +39,27 @@ option(WITH_DEBUG_SDL_EVENTS "[dangerous, not for release builds!] Debug SDL eve
 option(WITH_DEBUG_SDL_KBD_EVENTS "[dangerous, not for release builds!] Debug SDL keyboard events" OFF)
 option(WITH_WIN_CONSOLE "Build ${PROJECT_NAME} with console support" ON)
 
+# Configure MSVC Runtime
+if(MSVC)
+	include(MSVCRuntime)
+	if(NOT DEFINED MSVC_RUNTIME)
+		set(MSVC_RUNTIME "dynamic" CACHE STRING "MSVC runtime type [dynamic|static]")
+	endif()
+	if(MSVC_RUNTIME STREQUAL "static")
+		if(BUILD_SHARED_LIBS)
+			message(FATAL_ERROR "Static CRT is only supported in a fully static build")
+		endif()
+		message(STATUS "Use the MSVC static runtime option carefully!")
+		message(STATUS "OpenSSL uses /MD by default, and is very picky")
+		message(STATUS "Random freeing errors are a common sign of runtime issues")
+	endif()
+	configure_msvc_runtime()
+
+	if(NOT DEFINED CMAKE_SUPPRESS_REGENERATION)
+		set(CMAKE_SUPPRESS_REGENERATION ON)
+	endif()
+endif()
+
 if(WITH_WIN_CONSOLE)
   set(WIN32_GUI_FLAG "")
 else()