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BT411/CMakeLists.txt
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arcattackandClaude Opus 4.8 eb618fe9e6 BT_EXPIRE: tester builds stop working 14 days after build (compile gate) 
Distributed test zips go stale and stray.  BT_EXPIRE (CMake option,
DEFAULT ON so a zip can never accidentally ship without it) makes the
exe refuse to start BT_EXPIRE_DAYS (default 14) after its build day:
boot logs the remaining window, an expired build logs + shows a
"test build expired -- ask the operator for the current build" box and
exits.  btversion.h now stamps BT_BUILD_UNIX (UTC-midnight-rounded so
the only-on-change header churns once per day, not every build) +
BT_BUILD_DATE.  Dev is unaffected: every build re-stamps the day.

-DBT_EXPIRE=OFF builds a non-expiring exe; mkdist reads the cache and
marks such a zip "-noexpire" + prints a warning, and the tester README
expiry note is {EXPIRE}-marker-gated like the steam lines.  Second
compile-gate exception after BT_STEAM (convention updated in
glass-cockpit.md).  Quality gate, not DRM -- a clock rollback defeats it.

Verified live: default build logs "test build window: 14 day(s) left";
a -DBT_EXPIRE_DAYS=0 build logs TEST BUILD EXPIRED and parks on the
explanation box (window title checked) without starting the game;
restored to 14 and rebuilt clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-22 13:39:19 -05:00

431 lines
16 KiB
CMake
Raw Blame History

cmake_minimum_required(VERSION 3.20)
project(bt411 CXX)
set(CMAKE_CXX_STANDARD 14)
# BattleTech 4.11 -- Virtual World Entertainment pod BattleTech (Tesla rel 4.10)
# reconstructed on the shared RP411 Windows engine. Build 32-bit (Win32) with
# the VS2019 BuildTools instance -- see README.md for the exact configure line.
# Run from the content dir: cd content && ../build/Debug/btl4.exe -egg DEV.EGG
# --- external dependency: legacy DirectX SDK (June 2010); override with -DDXSDK=... ---
set(DXSDK "C:/Program Files (x86)/Microsoft DirectX SDK (June 2010)" CACHE PATH "Legacy DirectX SDK root")
#===========================================================================#
# ONE BUILD (unified 2026-07-21; was pod / glass / steam compile splits).
# Everything compiles into the single exe; behavior is selected at RUNTIME
# by env gates -- BT_PLATFORM=glass arms the desktop-cockpit profile
# (PadRIO clicks, bindings.txt keymap, plasma window, miniconsole menu).
# A bare boot (no env, no args) behaves like the old pod build: DEV
# profile, no menu, waits for the console egg -- the cabinet default is
# unchanged. The BT_GLASS macro remains (always defined) as a seam marker.
#
# THE ONE COMPILE GATE: BT_STEAM (default OFF). The Steamworks SDK's
# license means a RELEASE build must exclude Steam entirely (no SDK
# headers, no steam_api.lib, no DLL). When ON: the transport compiles in,
# steam_api.dll is DELAY-LOADED, and BT_STEAM_NET=1 arms it at runtime --
# machines without the DLL still run everything else.
# Dev checkout: configure build/ once with -DBT_STEAM=ON.
#===========================================================================#
option(BT_STEAM "Steam transport + lobby (Steamworks SDK -- EXCLUDE from public releases)" OFF)
message(STATUS "bt411: BT_STEAM=${BT_STEAM}")
#===========================================================================#
# Tester-build expiry tripwire (2026-07-22). Distributed test zips go stale
# and stray: with BT_EXPIRE on (the DEFAULT, so a zip can never accidentally
# ship without it) the exe refuses to start BT_EXPIRE_DAYS after its build
# date, telling the tester to fetch a current build. Dev is unaffected --
# btversion.h re-stamps the build day on every build. Disable for a
# non-expiring build with -DBT_EXPIRE=OFF (mkdist marks such a zip
# '-noexpire'). Quality gate, not DRM -- a clock rollback defeats it.
#===========================================================================#
option(BT_EXPIRE "Expire the exe BT_EXPIRE_DAYS after its build date" ON)
set(BT_EXPIRE_DAYS 14 CACHE STRING "Days a BT_EXPIRE build keeps running")
message(STATUS "bt411: BT_EXPIRE=${BT_EXPIRE} (${BT_EXPIRE_DAYS} days)")
set(BT_DEFS WIN32 _WINDOWS UNICODE _UNICODE NOMINMAX
_CRT_SECURE_NO_DEPRECATE _CRT_SECURE_NO_WARNINGS
_SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS
BT_GLASS)
if(BT_STEAM)
list(APPEND BT_DEFS BT_STEAM)
endif()
set(BT_OPTS /permissive /W0 /wd4996 /EHsc /bigobj /MP)
#===========================================================================#
# Engine: MUNGA (shared sim/render engine) + MUNGA_L4 (Win32/D3D9 HAL).
# The 2007 RP411 Windows engine, carrying our BT render/loader work
# (bgfload/L4D3D/L4VIDEO: BSL bit-slice decode, LOD/ground/shadow models).
# Include path is DXSDK + shim ONLY -- adding MUNGA dirs shadows <time.h>.
#===========================================================================#
add_library(munga_engine STATIC
"engine/MUNGA/AFFNMTRX.cpp"
"engine/MUNGA/ANGLE.cpp"
"engine/MUNGA/ANIMTOOL.cpp"
"engine/MUNGA/APP.cpp"
"engine/MUNGA/APPMGR.cpp"
"engine/MUNGA/APPMSG.cpp"
"engine/MUNGA/APPTASK.cpp"
"engine/MUNGA/AUDCMP.cpp"
"engine/MUNGA/AUDENT.cpp"
"engine/MUNGA/AUDIO.cpp"
"engine/MUNGA/AUDLOC.cpp"
"engine/MUNGA/AUDLVL.cpp"
"engine/MUNGA/AUDMIDI.cpp"
"engine/MUNGA/AUDREND.cpp"
"engine/MUNGA/AUDSEQ.cpp"
"engine/MUNGA/AUDSRC.cpp"
"engine/MUNGA/AUDTIME.cpp"
"engine/MUNGA/AUDTOOLS.cpp"
"engine/MUNGA/AUDWGT.cpp"
"engine/MUNGA/AUDWTHR.cpp"
"engine/MUNGA/AVERAGE.cpp"
"engine/MUNGA/BNDGBOX.cpp"
"engine/MUNGA/BOXCONE.cpp"
"engine/MUNGA/BOXDISKS.cpp"
"engine/MUNGA/BOXIRAMP.cpp"
"engine/MUNGA/BOXLIST.cpp"
"engine/MUNGA/BOXRAMP.cpp"
"engine/MUNGA/BOXSOLID.cpp"
"engine/MUNGA/BOXSORT.cpp"
"engine/MUNGA/BOXSPHR.cpp"
"engine/MUNGA/BOXTILE.cpp"
"engine/MUNGA/BOXTREE.cpp"
"engine/MUNGA/BOXWEDGE.cpp"
"engine/MUNGA/CAMINST.cpp"
"engine/MUNGA/CAMMGR.cpp"
"engine/MUNGA/CAMMPPR.cpp"
"engine/MUNGA/CAMSHIP.cpp"
"engine/MUNGA/CHAIN.cpp"
"engine/MUNGA/CMPNNT.cpp"
"engine/MUNGA/COLLASST.cpp"
"engine/MUNGA/COLLORGN.cpp"
"engine/MUNGA/COLOR.cpp"
"engine/MUNGA/CONSOLE.cpp"
"engine/MUNGA/CONTROLS.cpp"
"engine/MUNGA/CSTR.cpp"
"engine/MUNGA/CULTURAL.cpp"
"engine/MUNGA/DAMAGE.cpp"
"engine/MUNGA/DIRECTOR.cpp"
"engine/MUNGA/DOOR.cpp"
"engine/MUNGA/DOORFRAM.cpp"
"engine/MUNGA/DROPZONE.cpp"
"engine/MUNGA/ENTITY.cpp"
"engine/MUNGA/ENTITY2.cpp"
"engine/MUNGA/ENTITYID.cpp"
"engine/MUNGA/ENVIRNMT.cpp"
"engine/MUNGA/EVENT.cpp"
"engine/MUNGA/EVTSTAT.cpp"
"engine/MUNGA/EXPLODE.cpp"
"engine/MUNGA/EXPTBL.cpp"
"engine/MUNGA/EXTNTBOX.cpp"
"engine/MUNGA/EYECANDY.cpp"
"engine/MUNGA/FILESTRM.cpp"
"engine/MUNGA/FILESTUB.cpp"
"engine/MUNGA/FILEUTIL.cpp"
"engine/MUNGA/GAUGALRM.cpp"
"engine/MUNGA/GAUGE.cpp"
"engine/MUNGA/GAUGMAP.cpp"
"engine/MUNGA/GAUGREND.cpp"
"engine/MUNGA/GRAPH2D.cpp"
"engine/MUNGA/HASH.cpp"
"engine/MUNGA/HOST.cpp"
"engine/MUNGA/HOSTMGR.cpp"
"engine/MUNGA/ICOM.cpp"
"engine/MUNGA/INTEREST.cpp"
"engine/MUNGA/INTORGN.cpp"
"engine/MUNGA/ITERATOR.cpp"
"engine/MUNGA/JMOVER.cpp"
"engine/MUNGA/JOINT.cpp"
"engine/MUNGA/LAMP.cpp"
"engine/MUNGA/LATTICE.cpp"
"engine/MUNGA/LINE.cpp"
"engine/MUNGA/LINK.cpp"
"engine/MUNGA/LINMTRX.cpp"
"engine/MUNGA/MAPTOOL.cpp"
"engine/MUNGA/MATRIX.cpp"
"engine/MUNGA/MEMBLOCK.cpp"
"engine/MUNGA/MEMREG.cpp"
"engine/MUNGA/MEMSTRM.CPP"
"engine/MUNGA/MISSION.cpp"
"engine/MUNGA/MODE.cpp"
"engine/MUNGA/MODTOOL.cpp"
"engine/MUNGA/MOTION.cpp"
"engine/MUNGA/MOVER.cpp"
"engine/MUNGA/MTRXSTK.cpp"
"engine/MUNGA/NAMELIST.cpp"
"engine/MUNGA/NETWORK.cpp"
"engine/MUNGA/NODE.cpp"
"engine/MUNGA/NORMAL.cpp"
"engine/MUNGA/NOTATION.cpp"
"engine/MUNGA/NTTMGR.cpp"
"engine/MUNGA/OBJSTRM.cpp"
"engine/MUNGA/ORIGIN.cpp"
"engine/MUNGA/PLANE.cpp"
"engine/MUNGA/PLAYER.cpp"
"engine/MUNGA/PLUG.cpp"
"engine/MUNGA/POINT3D.cpp"
"engine/MUNGA/RANDOM.cpp"
"engine/MUNGA/RAY.cpp"
"engine/MUNGA/RECEIVER.cpp"
"engine/MUNGA/RECT2D.cpp"
"engine/MUNGA/REGISTRY.cpp"
"engine/MUNGA/RENDERER.cpp"
"engine/MUNGA/RESOURCE.cpp"
"engine/MUNGA/RETICLE.cpp"
"engine/MUNGA/RNDORGN.cpp"
"engine/MUNGA/ROTATION.cpp"
"engine/MUNGA/SCALAR.cpp"
"engine/MUNGA/SCHAIN.cpp"
"engine/MUNGA/SCNROLE.cpp"
"engine/MUNGA/SEGMENT.cpp"
"engine/MUNGA/SET.cpp"
"engine/MUNGA/SFESKT.cpp"
"engine/MUNGA/SIMULATE.cpp"
"engine/MUNGA/SLOT.cpp"
"engine/MUNGA/SOCKET.cpp"
"engine/MUNGA/SPHERE.cpp"
"engine/MUNGA/SPLINE.cpp"
"engine/MUNGA/SPOOLER.cpp"
"engine/MUNGA/SRTSKT.cpp"
"engine/MUNGA/SUBSYSTM.cpp"
"engine/MUNGA/TABLE.cpp"
"engine/MUNGA/TEAM.cpp"
"engine/MUNGA/TERRAIN.cpp"
"engine/MUNGA/TESTALL.cpp"
"engine/MUNGA/TIME.cpp"
# TIMESTUB.cpp REMOVED (2026-07-14): its GetRTC/GetHiRes were 2007 call-counter
# stubs (`return time++` -- the "clock" advanced per CALL, not per ms) that WON
# the /FORCE duplicate-symbol race over the REAL QueryPerformanceCounter clock
# in L4TIME.cpp (LNK4006 "second definition ignored"). Every Now()-domain
# consumer (dead-reckoning above all) ran on call-count pseudo-time -> the
# replicant stall/jump chop. L4TIME.cpp covers every symbol TIMESTUB defined.
"engine/MUNGA/TOOL.cpp"
"engine/MUNGA/TRACE.cpp"
"engine/MUNGA/TRACSTUB.cpp"
"engine/MUNGA/TREE.cpp"
"engine/MUNGA/UNITVEC.cpp"
"engine/MUNGA/UPDATE.cpp"
"engine/MUNGA/VCHAIN.cpp"
"engine/MUNGA/VDATA.cpp"
"engine/MUNGA/VECTOR3D.cpp"
"engine/MUNGA/VECTOR4D.cpp"
"engine/MUNGA/VERIFY.cpp"
"engine/MUNGA/VIDREND.cpp"
"engine/MUNGA/WATCHER.cpp"
"engine/MUNGA/WRHOUS.cpp"
"engine/MUNGA_L4/DXUtils.cpp"
"engine/MUNGA_L4/L4APP.cpp"
"engine/MUNGA_L4/L4AUDEFX.cpp"
"engine/MUNGA_L4/L4AUDHDW.cpp"
"engine/MUNGA_L4/L4AUDIO.cpp"
"engine/MUNGA_L4/L4AUDLVL.cpp"
"engine/MUNGA_L4/L4AUDRES.cpp"
"engine/MUNGA_L4/L4AUDRND.cpp"
"engine/MUNGA_L4/L4AUDTUL.cpp"
"engine/MUNGA_L4/L4AUDWTR.cpp"
"engine/MUNGA_L4/L4CTLTUL.cpp"
"engine/MUNGA_L4/L4CTRL.cpp"
"engine/MUNGA_L4/L4D3D.cpp"
"engine/MUNGA_L4/L4DINPUT.cpp"
"engine/MUNGA_L4/L4DPLMEM.cpp"
"engine/MUNGA_L4/L4GAUGE.cpp"
"engine/MUNGA_L4/L4GAUIMA.cpp"
"engine/MUNGA_L4/L4GAUTUL.cpp"
"engine/MUNGA_L4/L4GREND.cpp"
"engine/MUNGA_L4/L4HOST.cpp"
"engine/MUNGA_L4/L4ICOM.cpp"
"engine/MUNGA_L4/L4KEYBD.cpp"
"engine/MUNGA_L4/L4LAMP.cpp"
"engine/MUNGA_L4/L4MOUSE.cpp"
"engine/MUNGA_L4/L4MPPR.cpp"
"engine/MUNGA_L4/L4NET.CPP"
"engine/MUNGA_L4/L4PARTICLES.cpp"
"engine/MUNGA_L4/L4PCSPAK.cpp"
"engine/MUNGA_L4/L4PLASMA.cpp"
"engine/MUNGA_L4/L4RIO.cpp"
"engine/MUNGA_L4/L4SERIAL.cpp"
"engine/MUNGA_L4/L4SPLR.cpp"
"engine/MUNGA_L4/L4TIME.cpp"
"engine/MUNGA_L4/L4TRACE.cpp"
"engine/MUNGA_L4/L4TSTALL.cpp"
"engine/MUNGA_L4/L4VB16.cpp"
"engine/MUNGA_L4/L4VB8.cpp"
"engine/MUNGA_L4/L4VIDEO.cpp"
"engine/MUNGA_L4/L4VIDPER.cpp"
"engine/MUNGA_L4/L4VIDRND.cpp"
"engine/MUNGA_L4/L4VIDTUL.cpp"
"engine/MUNGA_L4/L4WRHOUS.cpp"
"engine/MUNGA_L4/WTPresets.cpp"
"engine/MUNGA_L4/temp.cpp"
"engine/MUNGA_L4/bgfload.cpp"
"engine/MUNGA_L4/image.cpp"
)
target_sources(munga_engine PRIVATE
"engine/MUNGA_L4/L4PADRIO.cpp"
"engine/MUNGA_L4/L4PADBINDINGS.cpp"
"engine/MUNGA_L4/L4PADPANEL.cpp"
"engine/MUNGA_L4/L4GLASSWIN.cpp"
"engine/MUNGA_L4/L4PLASMAWIN.cpp"
)
target_include_directories(munga_engine BEFORE PRIVATE
"${CMAKE_SOURCE_DIR}/engine/shim"
"${DXSDK}/Include")
target_compile_definitions(munga_engine PRIVATE ${BT_DEFS})
target_compile_options(munga_engine PRIVATE ${BT_OPTS})
#===========================================================================#
# Game logic: reconstructed BT modules + surviving-original BT source.
# Headers come from game/original/BT{,_L4} and the game/fwd shims
# (which forward <NAME.hpp> -> the engine's NAME.h).
#===========================================================================#
add_library(bt410_l4 STATIC
"game/reconstructed/ammobin.cpp"
"game/reconstructed/btdirect.cpp"
"game/reconstructed/btinput.cpp"
"game/reconstructed/btl4app.cpp"
"game/reconstructed/btl4galm.cpp"
"game/reconstructed/btl4gau2.cpp"
"game/reconstructed/btl4gau3.cpp"
"game/reconstructed/btl4gaug.cpp"
"game/reconstructed/btl4grnd.cpp"
"game/reconstructed/btl4mppr.cpp"
"game/reconstructed/btl4mssn.cpp"
"game/reconstructed/btl4pb.cpp"
"game/reconstructed/btl4rdr.cpp"
"game/reconstructed/btl4vid.cpp"
"game/reconstructed/btplayer.cpp"
"game/reconstructed/btvisgnd.cpp"
"game/reconstructed/dmgtable.cpp"
"game/reconstructed/emitter.cpp"
"game/reconstructed/gnrator.cpp"
"game/reconstructed/gyro.cpp"
"game/reconstructed/matchlog.cpp"
"game/reconstructed/heat.cpp"
"game/reconstructed/heatfamily_reslice.cpp"
"game/reconstructed/hud.cpp"
"game/reconstructed/mech.cpp"
"game/reconstructed/mech2.cpp"
"game/reconstructed/mech3.cpp"
"game/reconstructed/mech4.cpp"
"game/reconstructed/mechdmg.cpp"
"game/reconstructed/mechmppr.cpp"
"game/reconstructed/mechsub.cpp"
"game/reconstructed/mechtech.cpp"
"game/reconstructed/mechweap.cpp"
"game/reconstructed/messmgr.cpp"
"game/reconstructed/mislanch.cpp"
"game/reconstructed/missile.cpp"
"game/reconstructed/misthrst.cpp"
"game/reconstructed/myomers.cpp"
"game/reconstructed/powersub.cpp"
"game/reconstructed/projtile.cpp"
"game/reconstructed/projweap.cpp"
"game/reconstructed/searchlight.cpp"
"game/reconstructed/seeker.cpp"
"game/reconstructed/sensor.cpp"
"game/reconstructed/seqctl.cpp"
"game/reconstructed/thermalsight.cpp"
"game/reconstructed/torso.cpp"
"game/reconstructed/btstubs.cpp"
"game/reconstructed/audiopresets.cpp"
"game/reconstructed/dpl2d.cpp"
"game/original/BT/BTMSSN.CPP"
"game/original/BT/BTREG.CPP"
"game/original/BT/BTTEAM.CPP"
"game/original/BT/BTSCNRL.CPP"
"game/original/BT/BTCNSL.CPP"
"game/original/BT/GAUSS.CPP"
"game/original/BT/PPC.CPP"
"game/original/BT_L4/BTL4MODE.CPP"
"game/original/BT_L4/BTL4ARND.CPP"
)
target_include_directories(bt410_l4 BEFORE PRIVATE
"${CMAKE_BINARY_DIR}"
"${CMAKE_SOURCE_DIR}/engine/shim"
"${CMAKE_SOURCE_DIR}/game/reconstructed"
"${CMAKE_SOURCE_DIR}/game/original/BT"
"${CMAKE_SOURCE_DIR}/game/original/BT_L4"
"${CMAKE_SOURCE_DIR}/game/fwd"
"${DXSDK}/Include")
target_compile_definitions(bt410_l4 PRIVATE ${BT_DEFS})
target_compile_options(bt410_l4 PRIVATE ${BT_OPTS})
#===========================================================================#
# Executable: btl4.exe (WinMain launcher + game lib + engine lib + D3D9/audio)
#===========================================================================#
# Version stamp: 4.11.<git commit count> (<short hash>[+]) regenerated every
# build into ${CMAKE_BINARY_DIR}/btversion.h (see tools/btversion.cmake).
add_custom_target(btversion
COMMAND ${CMAKE_COMMAND}
-DOUT=${CMAKE_BINARY_DIR}/btversion.h
-DSRC=${CMAKE_SOURCE_DIR}
-P ${CMAKE_SOURCE_DIR}/tools/btversion.cmake
BYPRODUCTS ${CMAKE_BINARY_DIR}/btversion.h
COMMENT "Stamping btversion.h")
add_dependencies(bt410_l4 btversion) # matchlog.cpp stamps btversion.h into its HDR line
add_executable(btl4 WIN32 "${CMAKE_SOURCE_DIR}/game/btl4main.cpp")
add_dependencies(btl4 btversion)
target_include_directories(btl4 BEFORE PRIVATE
"${CMAKE_BINARY_DIR}"
"${CMAKE_SOURCE_DIR}/engine/shim"
"${CMAKE_SOURCE_DIR}/game/reconstructed"
"${CMAKE_SOURCE_DIR}/game/original/BT"
"${CMAKE_SOURCE_DIR}/game/original/BT_L4"
"${CMAKE_SOURCE_DIR}/game/fwd"
"${DXSDK}/Include")
target_sources(btl4 PRIVATE
"game/glass/btl4fe.cpp"
"game/glass/btl4console.cpp"
)
target_include_directories(btl4 BEFORE PRIVATE "${CMAKE_SOURCE_DIR}/game/glass")
target_compile_definitions(btl4 PRIVATE ${BT_DEFS})
if(BT_EXPIRE)
target_compile_definitions(btl4 PRIVATE BT_EXPIRE=1 BT_EXPIRE_DAYS=${BT_EXPIRE_DAYS})
endif()
target_compile_options(btl4 PRIVATE ${BT_OPTS})
target_link_libraries(btl4 PRIVATE
bt410_l4
munga_engine
"${CMAKE_SOURCE_DIR}/engine/lib/OpenAL32.lib"
"${DXSDK}/Lib/x86/d3d9.lib"
"${DXSDK}/Lib/x86/d3dx9.lib"
"${DXSDK}/Lib/x86/dinput8.lib"
"${DXSDK}/Lib/x86/dxguid.lib"
"${DXSDK}/Lib/x86/DxErr.lib"
winmm dbghelp shell32 user32 gdi32 ole32 ws2_32)
# /FORCE: the 1995 headers define free funcs/globals without inline/extern, so
# identical symbols land in every TU (~124 LNK2005); MULTIPLE keeps the first.
# UNRESOLVED tolerates the dead offline-tool factory in mech3.cpp. See docs.
target_link_options(btl4 PRIVATE /FORCE)
# Steam transport (BT_STEAM=ON only -- the license gate): DELAY-LOADED.
# steam_api.dll is only mapped when the first SteamAPI call runs, and every
# call site gates on BT_STEAM_NET=1 (btl4main step-4b bring-up; L4NET's
# BTSteamNet_* short-circuit on steamActive) -- so even the steam-enabled
# exe runs without the DLL as long as the env gate stays off. A BT_STEAM=OFF
# configure touches NO Steamworks bits: no SDK headers, no lib, no DLL copy
# (and mkdist then leaves play_steam.bat + steam_api.dll out of the zip).
if(BT_STEAM)
set(STEAMWORKS "${CMAKE_SOURCE_DIR}/extern/steamworks_sdk_164")
target_sources(munga_engine PRIVATE "engine/MUNGA_L4/L4STEAMNET.cpp")
target_sources(btl4 PRIVATE "game/glass/btl4lobby.cpp")
target_include_directories(munga_engine PRIVATE "${STEAMWORKS}/public")
target_include_directories(btl4 PRIVATE "${STEAMWORKS}/public")
target_link_libraries(btl4 PRIVATE
"${STEAMWORKS}/redistributable_bin/steam_api.lib"
delayimp)
target_link_options(btl4 PRIVATE "/DELAYLOAD:steam_api.dll")
add_custom_command(TARGET btl4 POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
"${STEAMWORKS}/redistributable_bin/steam_api.dll"
"$<TARGET_FILE_DIR:btl4>")
endif()
# Copy the OpenAL runtime DLL next to the built exe. (libsndfile is gone: its
# repo DLL was a no-op STUB -- L4AUDRES now loads the soundbank WAVs with an
# in-tree RIFF/PCM reader, no external dependency.)
add_custom_command(TARGET btl4 POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
"${CMAKE_SOURCE_DIR}/engine/lib/OpenAL32.dll"
"$<TARGET_FILE_DIR:btl4>")
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