From 480b787552f9d8339ee9ac5dc579d347792c1082 Mon Sep 17 00:00:00 2001
From: Tom Dewey <tom.dewey@raspberrypi.com>
Date: Fri, 2 Aug 2024 16:45:31 +0100
Subject: [PATCH] cmake: Windows: MINGW64_ROOT

Add an option for the MinGW64 root path.

This is used to find the supporting libraries for deployment on Windows.
---
 src/CMakeLists.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 221cd31..519a88a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -20,6 +20,10 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 # You _must_ set your Qt6 root for the build to progress.
 set(Qt6_ROOT "/opt/Qt/6.7.2/gcc_arm64" CACHE PATH "Your Qt6 root path")
 
+if (WIN32)
+    set(MINGW64_ROOT "" CACHE PATH "Your MinGW64 root path, likely provided by QtCreator")
+endif()
+
 ## Preferentially build the bundled code. Full vendoring is to follow in a later version.
 
 # Bundled liblzma
@@ -348,6 +352,14 @@ if (WIN32)
         "${CMAKE_CURRENT_BINARY_DIR}/rpi-imager.nsi"
         @ONLY)
 
+    add_custom_command(TARGET ${PROJECT_NAME}
+        POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+            "${MINGW64_ROOT}/bin/libgcc_s_seh-1.dll"
+            "${MINGW64_ROOT}/bin/libstdc++-6.dll"
+            "${MINGW64_ROOT}/bin/libwinpthread-1.dll"
+            "${CMAKE_BINARY_DIR}/deploy")
+
     add_custom_command(TARGET ${PROJECT_NAME}
         POST_BUILD
         COMMAND "${WINDEPLOYQT}" --no-translations --no-webkit2 --no-opengl-sw --angle --qmldir "${CMAKE_CURRENT_SOURCE_DIR}" "${CMAKE_BINARY_DIR}/deploy/rpi-imager.exe")