From 839e0e86cb846e3ea0c0a3d5da97321fe81f91e4 Mon Sep 17 00:00:00 2001
From: Chlumsky <viktor.chlumsky@gmail.com>
Date: Thu, 19 Jan 2023 19:06:03 +0100
Subject: [PATCH] Added option to use dynamic runtime library

---
 CMakeLists.txt | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6dec916..fe78a70 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,6 +9,7 @@ option(MSDFGEN_USE_OPENMP "Build with OpenMP support for multithreaded code" OFF
 option(MSDFGEN_USE_CPP11 "Build with C++11 enabled" ON)
 option(MSDFGEN_USE_SKIA "Build with the Skia library" ON)
 option(MSDFGEN_INSTALL "Generate installation target" OFF)
+option(MSDFGEN_DYNAMIC_RUNTIME "Link dynamic runtime library instead of static" OFF)
 option(BUILD_SHARED_LIBS "Generate dynamic library files instead of static" OFF)
 
 if(MSDFGEN_CORE_ONLY AND MSDFGEN_BUILD_STANDALONE)
@@ -26,6 +27,12 @@ if(NOT MULTI_CONFIG AND NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)
 endif()
 
+if(MSDFGEN_DYNAMIC_RUNTIME)
+    set(MSDFGEN_MSVC_RUNTIME "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL")
+else()
+    set(MSDFGEN_MSVC_RUNTIME "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+endif()
+
 if(BUILD_SHARED_LIBS)
     set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
 endif()
@@ -40,13 +47,17 @@ if(MSDFGEN_USE_VCPKG)
         endif()
     endif()
     # Default to statically linked vcpkg triplet on Windows
-    if(WIN32 AND NOT VCPKG_TARGET_TRIPLET AND NOT BUILD_SHARED_LIBS)
-        if(CMAKE_GENERATOR_PLATFORM MATCHES "64$")
+    if(WIN32 AND NOT VCPKG_TARGET_TRIPLET AND NOT MSDFGEN_DYNAMIC_RUNTIME)
+        if(CMAKE_GENERATOR_PLATFORM MATCHES "64$" AND NOT CMAKE_GENERATOR_PLATFORM STREQUAL "ARM64")
             set(VCPKG_TARGET_TRIPLET "x64-windows-static")
         elseif(CMAKE_GENERATOR_PLATFORM MATCHES "32$" OR CMAKE_GENERATOR_PLATFORM STREQUAL "x86")
             set(VCPKG_TARGET_TRIPLET "x86-windows-static")
         else()
-            message(WARNING "Vcpkg triplet not explicitly specified and could not be deduced. Recommend using -DVCPKG_TARGET_TRIPLET=x86-windows-static or similar")
+            if(CMAKE_GENERATOR_PLATFORM)
+                message(WARNING "Vcpkg triplet not explicitly specified and could not be deduced. Recommend using -DVCPKG_TARGET_TRIPLET=x64-windows-static or similar")
+            else()
+                message(WARNING "Vcpkg triplet not explicitly specified and could not be deduced. Recommend using -A to explicitly select platform (Win32 or x64)")
+            endif()
         endif()
     endif()
     # Select project features
@@ -79,7 +90,7 @@ file(GLOB_RECURSE MSDFGEN_EXT_SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "ext/
 add_library(msdfgen-core "${CMAKE_CURRENT_SOURCE_DIR}/msdfgen.h" ${MSDFGEN_CORE_HEADERS} ${MSDFGEN_CORE_SOURCES})
 add_library(msdfgen::msdfgen-core ALIAS msdfgen-core)
 set_target_properties(msdfgen-core PROPERTIES PUBLIC_HEADER "${MSDFGEN_CORE_HEADERS}")
-set_property(TARGET msdfgen-core PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+set_property(TARGET msdfgen-core PROPERTY MSVC_RUNTIME_LIBRARY "${MSDFGEN_MSVC_RUNTIME}")
 target_compile_definitions(msdfgen-core PUBLIC
     MSDFGEN_VERSION=${MSDFGEN_VERSION}
     MSDFGEN_VERSION_MAJOR=${MSDFGEN_VERSION_MAJOR}
@@ -127,7 +138,7 @@ if(NOT MSDFGEN_CORE_ONLY)
     add_library(msdfgen-ext "${CMAKE_CURRENT_SOURCE_DIR}/msdfgen-ext.h" ${MSDFGEN_EXT_HEADERS} ${MSDFGEN_EXT_SOURCES})
     add_library(msdfgen::msdfgen-ext ALIAS msdfgen-ext)
     set_target_properties(msdfgen-ext PROPERTIES PUBLIC_HEADER "${MSDFGEN_EXT_HEADERS}")
-    set_property(TARGET msdfgen-ext PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+    set_property(TARGET msdfgen-ext PROPERTY MSVC_RUNTIME_LIBRARY "${MSDFGEN_MSVC_RUNTIME}")
     target_compile_definitions(msdfgen-ext PUBLIC MSDFGEN_USE_LIBPNG)
     target_link_libraries(msdfgen-ext PRIVATE msdfgen::msdfgen-core Freetype::Freetype tinyxml2::tinyxml2 PNG::PNG)
     target_include_directories(msdfgen-ext
@@ -171,7 +182,7 @@ if(MSDFGEN_BUILD_STANDALONE)
     add_executable(msdfgen ${MSDFGEN_STANDALONE_SOURCES})
     target_compile_definitions(msdfgen PUBLIC MSDFGEN_STANDALONE)
     target_compile_definitions(msdfgen PRIVATE MSDFGEN_VERSION_UNDERLINE=${MSDFGEN_VERSION_UNDERLINE})
-    set_property(TARGET msdfgen PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+    set_property(TARGET msdfgen PROPERTY MSVC_RUNTIME_LIBRARY "${MSDFGEN_MSVC_RUNTIME}")
     target_link_libraries(msdfgen PRIVATE msdfgen::msdfgen)
     set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT msdfgen)
 endif()