From 915493bc3a4383ac21f239043e7162b13da170ed Mon Sep 17 00:00:00 2001
From: Cayleb-Ordo <simon@fentzl.de>
Date: Thu, 2 Apr 2026 22:39:14 +0200
Subject: [PATCH] Add a module to fetch and setup Windows prebuild libraries

This module downloads the given svn revision based on the current
architecture selected. It also sets up the `CMAKE_PREFIX_PATH`.
Add new option to disable fetching, which assumes that the libraries
are already in the correct folders.
---
 CMakeLists.txt               | 10 ++++++++++
 cmake/SetupWindowsLibs.cmake | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 cmake/SetupWindowsLibs.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 628b22ef88..f9f7100ab3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,11 @@ option(without-nvtt "Disable use of NVTT")
 option(without-pch "Disable generation and usage of precompiled headers")
 option(without-tests "Disable generation of test projects")
 
+# Windows specific options
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
+	option(fetch-prebuild-libs "Fetch prebuild libraries from SVN. Defaults to ON." ON)
+endif()
+
 # OS X specific options
 if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
 	option(macosx-version-min "Set minimum required version of the OS X API, the build will possibly fail if an older SDK is used, while newer API functions will be weakly linked (i.e. resolved at runtime)")
@@ -134,3 +139,8 @@ endif()
 
 # Include the BuildFlags target only once after all setup is finished
 include(0ad-BuildFlags)
+
+# +++++++++++++++++++++ Windows specific ++++++++++++++++++++
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
+	include(SetupWindowsLibs)
+endif()
diff --git a/cmake/SetupWindowsLibs.cmake b/cmake/SetupWindowsLibs.cmake
new file mode 100644
index 0000000000..50bcd43c76
--- /dev/null
+++ b/cmake/SetupWindowsLibs.cmake
@@ -0,0 +1,33 @@
+# Checks out the SVN Revision of windows libraries. Additionally sets up the environment for cmake.
+# To update the libraries change the 'SVN_REVISION'. Important: the '-r' in the Revision must be retained.
+message(STATUS "Fetching Windows prebuild Libraries for ${ARCH}")
+if(fetch-prebuild-libs)
+	include(FetchContent)
+	if(ARCH STREQUAL "amd64")
+		set(REPO_NAME windows-libs-amd64)
+	else()
+		set(REPO_NAME windows-libs)
+	endif()
+
+	FetchContent_Populate(
+		prebuild_libs
+		SVN_REPOSITORY	https://svn.wildfiregames.com/public/${REPO_NAME}/trunk
+		SVN_REVISION	-r28278
+		SOURCE_DIR		${0AD_EXT_LIBDIR}
+	)
+endif()
+message(STATUS "Copy dependencies' binaries to 'binaries/system/' and adding to 'CMAKE_PREFIX_PATH'")
+set(DIR_LIST cpp-httplib enet fcollada freetype gloox iconv icu libcurl libpng libsodium libxml2 microsoft miniupnpc nvtt openal sdl2 spidermonkey vorbis zlib)
+foreach(dir ${DIR_LIST})
+	file(COPY ${0AD_EXT_LIBDIR}/${dir}/bin DESTINATION ${CMAKE_SOURCE_DIR}/binaries/system)
+	list(APPEND CMAKE_PREFIX_PATH ${0AD_EXT_LIBDIR}/${dir})
+endforeach()
+# Add the whole libraries directory to CMAKE_PREFIX_PATH. May be redundand but needed for wxWidgets
+list(APPEND CMAKE_PREFIX_PATH ${0AD_EXT_LIBDIR})
+# Add libraries not set during binary copy
+list(APPEND CMAKE_PREFIX_PATH ${0AD_EXT_LIBDIR}/fmt)
+list(APPEND CMAKE_PREFIX_PATH ${0AD_EXT_LIBDIR}/libzip)
+list(APPEND CMAKE_PREFIX_PATH ${0AD_EXT_LIBDIR}/cxxtest-4.4)
+
+message(STATUS "Copy build tools to 'build/bin'")
+file(COPY ${0AD_EXT_LIBDIR}/cxxtest-4.4/bin DESTINATION ${CMAKE_SOURCE_DIR}/build/bin)