From 1304d7c8b6b528e21cfb62b643937a0559b73231 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Wed, 1 Jul 2020 00:25:50 +0100
Subject: [PATCH] CMake: Add DbgHelp define for MinGW

---
 CMakeLists.txt          |  1 +
 cmake/FindDbgHelp.cmake | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 cmake/FindDbgHelp.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6266097414..108efe0550 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,6 +80,7 @@ endif (UNIX)
 if (MINGW)
     find_package(Demangle)
     find_package(BFD)
+    find_package(DbgHelp)
 endif (MINGW)
 
 find_package(SSE)
diff --git a/cmake/FindDbgHelp.cmake b/cmake/FindDbgHelp.cmake
new file mode 100644
index 0000000000..2bbfbea57d
--- /dev/null
+++ b/cmake/FindDbgHelp.cmake
@@ -0,0 +1,20 @@
+include(CheckCXXSourceCompiles)
+
+check_cxx_source_compiles("
+    #include <windows.h>
+    #include <dbghelp.h>
+    int main() {
+        STACKFRAME64 frame;
+        IMAGEHLP_SYMBOL64 *sym_info;
+        IMAGEHLP_MODULE64 module;
+        IMAGEHLP_LINE64 line;
+        return 0;
+    }"
+    DBGHELP_FOUND
+)
+
+if (DBGHELP_FOUND)
+    add_compile_options(
+        -DWITH_DBGHELP
+    )
+endif (DBGHELP_FOUND)