buildsys/target/engine.cmake

   1 add_library(common INTERFACE)
   2 target_compile_definitions(common INTERFACE -D_FILE_OFFSET_BITS=64 -D__KERNEL_STRICT_NAMES)
   3
   4 set(ENV{TZ} "UTC")
   5
   6 # Build a version string for the engine.
   7 execute_process(
   8         COMMAND git rev-parse --short HEAD
   9         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  10         OUTPUT_VARIABLE revision
  11         OUTPUT_STRIP_TRAILING_WHITESPACE
  12 )
  13
  14 execute_process(
  15         COMMAND "git show -s --format=%ad --date='format-local:%a %b %d %Y %H:%M:%S UTC'"
  16         OUTPUT_VARIABLE timestamp
  17         OUTPUT_STRIP_TRAILING_WHITESPACE
  18 )
  19 set(DP_BUILD_REVISION "${timestamp} - ${revision}")
  20
  21 if(CMAKE_SYSTEM_PROCESSOR MATCHES "(x|i[36])86|AMD64")
  22         option(ENGINE_CONFIG_SSE "Build with SSE support (x86 and x86_64 only)" ON)
  23 else()
  24         set(ENGINE_CONFIG_SSE OFF)
  25 endif()
  26
  27 if(NOT MSVC)
  28         # Flags for gcc, clang, tcc...
  29
  30         # NOTE: *never* *ever* use the -ffast-math or -funsafe-math-optimizations flag
  31         # Also, since gcc 5, -ffinite-math-only makes NaN and zero compare equal inside engine code but not inside QC, which causes error spam for seemingly valid QC code like if (x != 0) return 1 / x;
  32
  33         target_compile_options(common INTERFACE
  34                 -Wall -Winline -Werror=c++-compat -Wwrite-strings -Wshadow -Wold-style-definition -Wstrict-prototypes -Wsign-compare -Wdeclaration-after-statement -Wmissing-prototypes
  35                 $<$<CONFIG:RELEASE>:-O3 -fno-strict-aliasing -fno-math-errno -fno-rounding-math -fno-trapping-math>
  36                 $<$<CONFIG:DEBUG>:-ggdb>
  37                 $<$<CONFIG:PROFILE>:-g -pg -ggdb -fprofile-arcs>
  38                 $<$<CONFIG:PROFILERELEASE>:-fbranch-probabilities>
  39         )
  40
  41         if(NOT CMAKE_C_COMPILER_ID STREQUAL "Clang")
  42                 target_compile_options(common INTERFACE $<$<CONFIG:RELEASE>:-fno-signaling-nans>)
  43         endif()
  44
  45         target_link_libraries(common INTERFACE -lm)
  46
  47         if(CMAKE_C_COMPILER_ID STREQUAL "TinyCC")
  48                 target_compile_definitions(common INTERFACE -DSDL_DISABLE_IMMINTRIN_H)
  49         endif()
  50
  51         if(ENGINE_CONFIG_PEDANTIC)
  52                 target_compile_options(common INTERFACE -std=c11 -pedantic)
  53                 target_compile_definitions(common INTERFACE -D_POSIX_C_SOURCE=200809L -DCONFIG_PEDANTIC)
  54         endif()
  55
  56         if(ENGINE_CONFIG_SSE)
  57                 target_compile_options(common INTERFACE -msse)
  58         endif()
  59
  60         if(WIN32) # Windows MinGW
  61                 if(CMAKE_SYSTEM_PROCESSOR MATCHES "i[36]86")
  62                         target_link_options(common INTERFACE --large-address-aware)
  63                 endif()
  64                 target_link_libraries(common INTERFACE -lwinmm -limm32 -lversion -lwsock32 -lws2_32)
  65         elseif(APPLE) # MacOS, iOS
  66                 target_link_libraries(common INTERFACE -ldl -framework IOKit -framework CoreFoundation)
  67         elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS") # SunOS, Solaris, OpenSolaris, illumos (OpenIndiana and friends)
  68                 target_link_libraries(common INTERFACE -lrt -ldl -lsocket -lnsl)
  69         else() # Linux, the BSDs, and probably everything else
  70                 target_link_libraries(common INTERFACE -lrt -ldl)
  71         endif()
  72 else()
  73         # Flags for Visual Studio
  74         target_compile_options(common INTERFACE
  75                 /W4 /Wd4706;4127;4100;4055;4054;4244;4305;4702;4201 /MP
  76                 $<$<CONFIG:RELEASE>:/MD /Gy /O2 /Oi /Zi>
  77                 $<$<CONFIG:DEBUG>:/Od /RTC1 /MDd /Gm>
  78         )
  79
  80         target_link_options(common INTERFACE
  81                 /SUBSYSTEM:WINDOWS
  82                 $<$<CONFIG:RELEASE>:/OPT:REF /OPT:ICF>
  83                 $<$<CONFIG:DEBUG>:/DEBUG /NODEFAULTLIB:msvcrt.lib>
  84         )
  85
  86         if(CMAKE_SYSTEM_PROCESOR STREQUAL "AMD64")
  87                 target_compile_options(client INTERFACE /Zi)
  88         else()
  89                 target_compile_options(client INTERFACE /ZI)
  90                 target_link_options(common INTERFACE /LARGEADDRESSAWARE)
  91         endif()
  92 endif()
  93
  94 if(ENGINE_VERSION)
  95         target_compile_definitions(common INTERFACE -DSVNREVISION=${ENGINE_VERSION})
  96 endif()
  97
  98 if(CMAKE_BUILD_TYPE)
  99         target_compile_definitions(common INTERFACE -DBUILDTYPE=${CMAKE_BUILD_TYPE})
 100 endif()
 101
 102 if(ENGINE_NO_BUILD_TIMESTAMPS)
 103         target_compile_definitions(common INTERFACE -DNO_BUILD_TIMESTAMPS)
 104 endif()
 105
 106 if(ENGINE_BUILD_CLIENT)
 107         include(buildsys/target/engine/client.cmake)
 108 endif()
 109
 110 if(ENGINE_BUILD_SERVER)
 111         include(buildsys/target/engine/server.cmake)
 112 endif()