OpenTS-Developers · mischa85 · Sep 2, 2026 · Sep 2, 2026 · Sep 2, 2026 · Sep 2, 2026
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -12,6 +12,7 @@ set(OPENTS_VERSION_PRERELEASE "")
 option(OPENTS_OFFICIAL_BUILD "Build as an official release of the declared version" OFF)
 
 option(OPENTS_EXPERIMENTAL_CLANG_CL "Build with clang-cl using the MSVC ABI" OFF)
+option(OPENTS_EXPERIMENTAL_NATIVE "Configure a native build for the host platform" OFF)
 
 if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang"
    AND CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC")
@@ -24,14 +25,24 @@ elseif(MSVC)
     if(MSVC_VERSION LESS 1930)
         message(FATAL_ERROR "OpenTS requires MSVC 19.30 or newer.")
     endif()
+elseif(OPENTS_EXPERIMENTAL_NATIVE)
+    message(STATUS "OpenTS: configuring an unsupported native build for the host platform.")
+
+    # The tree declares imports and exports with __declspec throughout, which clang only
+    # accepts with the Microsoft extensions enabled.
+    add_compile_options(-fms-extensions)
 else()
     message(FATAL_ERROR
         "OpenTS requires the Visual Studio 2022 MSVC toolchain. "
         "For the unsupported clang-cl experiment, configure with "
-        "-DCMAKE_TOOLCHAIN_FILE=cmake/toolchains/clang-cl-msvc.cmake.")
+        "-DCMAKE_TOOLCHAIN_FILE=cmake/toolchains/clang-cl-msvc.cmake. "
+        "For the unsupported native build, configure with "
+        "-DOPENTS_EXPERIMENTAL_NATIVE=ON.")
 endif()
 
-enable_language(RC)
+if(WIN32)
+    enable_language(RC)
+endif()
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)

diff --git a/code/CMakeLists.txt b/code/CMakeLists.txt
@@ -2,7 +2,7 @@
 set(CMAKE_CONFIGURATION_TYPES Debug Release CACHE STRING "" FORCE)
 
 # OpenTS currently supports 32-bit (x86) builds only.
-if(NOT CMAKE_SIZEOF_VOID_P EQUAL 4)
+if(WIN32 AND NOT CMAKE_SIZEOF_VOID_P EQUAL 4)
     message(FATAL_ERROR "OpenTS must be built as 32-bit x86. Reconfigure with -A Win32.")
 endif()
 
@@ -165,7 +165,7 @@ set_source_files_properties("${CMAKE_CURRENT_SOURCE_DIR}/bgfxbackend.cpp" PROPER
         "${BGFX_ROOT}/include;${CMAKE_SOURCE_DIR}/thirdparty/bgfx.cmake/bx/include;${BGFX_ROOT}/examples/common/imgui"
     COMPILE_DEFINITIONS
         "BX_CONFIG_DEBUG=$<IF:$<CONFIG:Debug>,1,$<BOOL:${BX_CONFIG_DEBUG}>>"
-    COMPILE_OPTIONS "/Zc:preprocessor"
+    COMPILE_OPTIONS "$<$<BOOL:${MSVC}>:/Zc:preprocessor>"
 )
 
 # bx rewrites __stdcall while its headers are being parsed by clang-cl.  Force the
@@ -358,12 +358,14 @@ add_custom_command(TARGET OpenTS POST_BUILD
         "${TS_RUN_DIR}"
 )
 
-# Copy the linker-generated .pdb alongside the exe
-add_custom_command(TARGET OpenTS POST_BUILD
-    COMMAND ${CMAKE_COMMAND} -E copy_if_different
-        "$<TARGET_PDB_FILE:OpenTS>"
-        "${TS_RUN_DIR}"
-)
+# Copy the linker-generated .pdb alongside the exe. Only the MSVC linker writes one.
+if(MSVC)
+    add_custom_command(TARGET OpenTS POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+            "$<TARGET_PDB_FILE:OpenTS>"
+            "${TS_RUN_DIR}"
+    )
+endif()
 
 # Copy the linker-generated .map (sits next to the exe, no GenEx for it)
 add_custom_command(TARGET OpenTS POST_BUILD

diff --git a/code/addon.cpp b/code/addon.cpp
@@ -14,7 +14,7 @@
 #include "ccfile.h"
 #include "data.h"
 #include "init.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "ownrdraw.h"
 
 BOOL CALLBACK Select_Game_Type_Dialog_Proc(HWND window, UINT message, WPARAM wparam, LPARAM lparam);

diff --git a/code/chat.cpp b/code/chat.cpp
@@ -19,7 +19,7 @@
 #include "globals.h"
 #include "house.h"
 #include "ipxmgr.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "rules.h"
 #include "session.h"
 #include "stimer.h"

diff --git a/code/conquer.cpp b/code/conquer.cpp
@@ -89,7 +89,7 @@
 #include "init.h"
 #include "ipxmgr.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "logic.h"
 #include "mainloop.h"
 #include "movie.h"

diff --git a/code/credits.cpp b/code/credits.cpp
@@ -46,7 +46,7 @@
 #include "dsurface.h"
 #include "globals.h"
 #include "house.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "rules.h"
 #include "scenario.h"
 #include "scheme.h"

diff --git a/code/display.cpp b/code/display.cpp
@@ -124,7 +124,7 @@
 #include "inline.h"
 #include "isotype.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "logic.h"
 #include "mixfile.h"
 #include "overtype.h"

diff --git a/code/dropship.cpp b/code/dropship.cpp
@@ -33,7 +33,7 @@
 #include "house.h"
 #include "infatype.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "misc.h"
 #include "mixfile.h"
 #include "mouse.h"

diff --git a/code/dsaudio.cpp b/code/dsaudio.cpp
@@ -19,7 +19,7 @@
 #include "data.h"
 #include "dbgprint.h"
 #include "globals.h" // for GameInFocus
-#include "language\language.h"
+#include "language/language.h"
 #include "soscomp.h"
 #include "winfix.h"
 

diff --git a/code/egos.cpp b/code/egos.cpp
@@ -54,7 +54,7 @@
 #include "globals.h"
 #include "goptions.h"
 #include "gscreen.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "misc.h"
 #include "ownrdraw.h"
 #include "scheme.h"

diff --git a/code/event.cpp b/code/event.cpp
@@ -58,7 +58,7 @@
 #include "foot.h"
 #include "goptions.h"
 #include "house.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "mouse.h"
 #include "netsemantic.h"
 #include "rules.h"

diff --git a/code/gamedlg.cpp b/code/gamedlg.cpp
@@ -43,7 +43,7 @@
 #include "dsaudio.h"
 #include "globals.h"
 #include "init.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "ownrdraw.h"
 #include "queue.h"
 #include "session.h"

diff --git a/code/goptions.cpp b/code/goptions.cpp
@@ -40,7 +40,7 @@
 #include "data.h"
 #include "dbgprint.h"
 #include "gamedlg.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "loaddlg.h"
 #include "ownrdraw.h"
 #include "queue.h"

diff --git a/code/house.cpp b/code/house.cpp
@@ -159,7 +159,7 @@
 #include "infatype.h"
 #include "inline.h"
 #include "ion.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "lightcon.h"
 #include "logic.h"
 #include "mono.h"

diff --git a/code/infantry.cpp b/code/infantry.cpp
@@ -113,7 +113,7 @@
 #include "inline.h"
 #include "ion.h"
 #include "isotype.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "lightcon.h"
 #include "mixfile.h"
 #include "mono.h"

diff --git a/code/init.cpp b/code/init.cpp
@@ -121,7 +121,7 @@
 #include "ionblast.h"
 #include "ipxmgr.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "laser.h"
 #include "light.h"
 #include "lightcon.h"

diff --git a/code/ion.cpp b/code/ion.cpp
@@ -30,7 +30,7 @@
 #include "globals.h"
 #include "gscreen.h"
 #include "house.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "laser.h"
 #include "lightcon.h"
 #include "mixfile.h"

diff --git a/code/list.cpp b/code/list.cpp
@@ -63,7 +63,7 @@
 #include "dialog.h"
 #include "dsurface.h"
 #include "font.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "scheme.h"
 #include "vector.h"
 #include "wwmouse.h"

diff --git a/code/loaddlg.cpp b/code/loaddlg.cpp
@@ -48,7 +48,7 @@
 #include "globals.h"
 #include "houstype.h"
 #include "init.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "msgbox.h"
 #include "ownrdraw.h"
 #include "saveload.h"

diff --git a/code/mainloop.cpp b/code/mainloop.cpp
@@ -38,7 +38,7 @@
 #include "globals.h"
 #include "goptions.h"
 #include "ipxmgr.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "logic.h"
 #include "misc.h"
 #include "mpscore.h"

diff --git a/code/mainopt.cpp b/code/mainopt.cpp
@@ -23,7 +23,7 @@
 #include "gamedlg.h"
 #include "globals.h"
 #include "init.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "misc.h"
 #include "video.h"
 #include "mixfile.h"

diff --git a/code/mapgen.cpp b/code/mapgen.cpp
@@ -38,7 +38,7 @@
 #include "init.h"
 #include "inline.h"
 #include "isotype.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "netshare.h"
 #include "nodes.h"
 #include "overtype.h"

diff --git a/code/mpscore.cpp b/code/mpscore.cpp
@@ -27,7 +27,7 @@
 #include "houstype.h"
 #include "incdec.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "msanim.h"
 #include "msengine.h"
 #include "msfont.h"

diff --git a/code/msgbox.h b/code/msgbox.h
@@ -32,7 +32,7 @@
 
 #pragma once
 
-#include "language\language.h"
+#include "language/language.h"
 #include "win.h"
 
 class WWMessageBox

diff --git a/code/netdlg.cpp b/code/netdlg.cpp
@@ -112,7 +112,7 @@
 #include "globals.h"
 #include "houstype.h"
 #include "ipxmgr.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "list.h"
 #include "queue.h"
 #include "rules.h"

diff --git a/code/netdlg2.cpp b/code/netdlg2.cpp
@@ -28,7 +28,7 @@
 #include "houstype.h"
 #include "init.h"
 #include "ipxmgr.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "mapgen.h"
 #include "mplayer.h"
 #include "msgbox.h"

diff --git a/code/netshare.cpp b/code/netshare.cpp
@@ -18,7 +18,7 @@
 #include "globals.h"
 #include "goptions.h"
 #include "ipxmgr.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "lzopipe.h"
 #include "lzostraw.h"
 #include "mapgen.h"

diff --git a/code/options.cpp b/code/options.cpp
@@ -72,7 +72,7 @@
 #include "init.h"
 #include "ipxmgr.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "mouse.h"
 #include "msgbox.h"
 #include "ownrdraw.h"

diff --git a/code/ownrdraw.cpp b/code/ownrdraw.cpp
@@ -28,7 +28,7 @@
 #include "goptions.h"
 #include "hsv.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "mainloop.h"
 #include "misc.h"
 #include "msgroute.h"

diff --git a/code/power.cpp b/code/power.cpp
@@ -56,7 +56,7 @@
 #include "draw.h"
 #include "globals.h"
 #include "house.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "mixfile.h"
 #include "savestream.h"
 #include "surface.h"

diff --git a/code/preview.cpp b/code/preview.cpp
@@ -19,7 +19,7 @@
 #include "cell.h"
 #include "dbgprint.h"
 #include "dsurface.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "lzopipe.h"
 #include "lzostraw.h"
 #include "overtype.h"

diff --git a/code/progress.cpp b/code/progress.cpp
@@ -20,7 +20,7 @@
 #include "draw.h"
 #include "gscreen.h"
 #include "init.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "lightcon.h"
 #include "mixfile.h"
 #include "ownrdraw.h"

diff --git a/code/queue.cpp b/code/queue.cpp
@@ -118,7 +118,7 @@
 #include "infatype.h"
 #include "ipxmgr.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "light.h"
 #include "mainloop.h"
 #include "mono.h"

diff --git a/code/radar.cpp b/code/radar.cpp
@@ -92,7 +92,7 @@
 #include "infantry.h"
 #include "infatype.h"
 #include "init.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "lightcon.h"
 #include "mixfile.h"
 #include "movies.h"

diff --git a/code/restate.cpp b/code/restate.cpp
@@ -24,7 +24,7 @@
 #include "dbgprint.h"
 #include "globals.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "movie.h"
 #include "msanim.h"
 #include "msengine.h"

diff --git a/code/saveload.cpp b/code/saveload.cpp
@@ -82,7 +82,7 @@
 #include "infatype.h"
 #include "init.h"
 #include "ion.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "loaddlg.h"
 #include "light.h"
 #include "logic.h"

diff --git a/code/scenario.cpp b/code/scenario.cpp
@@ -107,7 +107,7 @@
 #include "ion.h"
 #include "ipxmgr.h"
 #include "isotype.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "light.h"
 #include "logic.h"
 #include "mainopt.h"

diff --git a/code/score.cpp b/code/score.cpp
@@ -61,7 +61,7 @@
 #include "goptions.h"
 #include "houstype.h"
 #include "keyboard.h"
-#include "language\language.h"
+#include "language/language.h"
 #include "misc.h"
 #include "mixfile.h"
 #include "movie.h"