From ef7a5ac68a829ff81c28326134d3a3485b97d426 Mon Sep 17 00:00:00 2001
From: Cristian Adam <cristian.adam@gmail.com>
Date: Mon, 23 May 2022 18:18:29 +0200
Subject: [PATCH] build: Enable static runtime linking for MSVC (#1069)

---
 CMakeLists.txt | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f810287a..4cb1aa532 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,9 @@
 cmake_minimum_required(VERSION 3.10)
 
+if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.15)
+  cmake_policy(SET CMP0091 NEW) # Needed by CMAKE_MSVC_RUNTIME_LIBRARY
+endif()
+
 project(ccache LANGUAGES C CXX ASM ASM_MASM)
 if(MSVC)
   enable_language(ASM_MASM)
@@ -83,6 +87,18 @@ include(GNUInstallDirs)
 include(GenerateConfigurationFile)
 include(GenerateVersionFile)
 
+#
+# Static link configuration
+#
+
+if(WIN32 AND CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+  option(STATIC_LINK "Link statically with system libraries" ON)
+endif()
+
+if(MSVC AND STATIC_LINK)
+  set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+endif()
+
 #
 # Third party
 #
@@ -113,10 +129,6 @@ endif()
 include(CodeAnalysis)
 option(ENABLE_TRACING "Enable possibility to use internal ccache tracing" OFF)
 
-if(WIN32 AND CMAKE_CXX_COMPILER_ID MATCHES "GNU")
-  option(STATIC_LINK "Link statically with system libraries" ON)
-endif()
-
 #
 # Source code
 #
-- 
2.47.3