From c9d565637dd949acaa784e5960eb569ce98c6edf Mon Sep 17 00:00:00 2001
From: Saleem Abdulrasool <compnerd@compnerd.org>
Date: Fri, 10 May 2019 08:25:33 -0700
Subject: [PATCH] build: ensure that we link against the correct library

Ensure that we link against the correct VC runtime libraries.
Additionally, enable the macros to indicate that we are linking against
the VC runtimes dynamically to get proper DLL storage.  This fixes
memory issues and file descriptor table synchrony.
---
 src/CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 21121bf4f..e24331096 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -124,6 +124,9 @@ if(ENABLE_SWIFT)
                     CFLAGS
                       -fblocks
                       -fmodule-map-file=${PROJECT_SOURCE_DIR}/dispatch/module.modulemap
+                      $<$<PLATFORM_ID:Windows>:-D_MT>
+                      # TODO(compnerd) handle /MT builds
+                      $<$<PLATFORM_ID:Windows>:-D_DLL>
                     DEPENDS
                       module-maps
                       DispatchStubs
@@ -134,6 +137,8 @@ if(ENABLE_SWIFT)
                       -lBlocksRuntime
                       -L $<TARGET_LINKER_FILE_DIR:dispatch>
                       -ldispatch
+                      $<$<AND:$<PLATFORM_ID:Windows>,$<CONFIG:Debug>>:-lmsvcrtd>
+                      $<$<AND:$<PLATFORM_ID:Windows>,$<NOT:$<CONFIG:Debug>>>:-lmsvcrt>
                     MODULE_NAME
                       Dispatch
                     MODULE_LINK_NAME