reactos/cmake/gcc.cmake

   1
   2 # Show a note about ccache build
   3 if(CCACHE STREQUAL "ccache")
   4     message("-- Enabling ccache build - done")
   5 endif()
   6
   7 # PDB style debug info
   8 if(NOT DEFINED SEPARATE_DBG)
   9     set(SEPARATE_DBG FALSE)
  10 endif()
  11
  12 if(SEPARATE_DBG)
  13     file(MAKE_DIRECTORY ${REACTOS_BINARY_DIR}/symbols)
  14 endif()
  15
  16 # Compiler Core
  17 add_compile_flags("-pipe -fms-extensions")
  18
  19 #bug
  20 #file(TO_NATIVE_PATH ${REACTOS_SOURCE_DIR} REACTOS_SOURCE_DIR_NATIVE)
  21 #workaround
  22 set(REACTOS_SOURCE_DIR_NATIVE ${REACTOS_SOURCE_DIR})
  23 set(TEST_ENV $ENV{windir})
  24 if(DEFINED TEST_ENV)
  25 string(REPLACE "/" "\\" REACTOS_SOURCE_DIR_NATIVE ${REACTOS_SOURCE_DIR})
  26 endif()
  27 add_compile_flags("-fdebug-prefix-map=${REACTOS_SOURCE_DIR_NATIVE}=ReactOS")
  28
  29 # Debugging
  30 if(SEPARATE_DBG)
  31     add_compile_flags("-gdwarf-2 -g2")
  32 else()
  33     add_compile_flags("-gstabs+")
  34 endif()
  35
  36
  37 # Do not allow warnings
  38 add_compile_flags("-Werror")
  39
  40 # For some reason, cmake sets -fPIC, and we don't want it
  41 if(DEFINED CMAKE_SHARED_LIBRARY_ASM_FLAGS)
  42     string(REPLACE "-fPIC" "" CMAKE_SHARED_LIBRARY_ASM_FLAGS ${CMAKE_SHARED_LIBRARY_ASM_FLAGS})
  43 endif()
  44
  45 # Tuning
  46 if(ARCH MATCHES i386)
  47     add_compile_flags("-march=${OARCH} -mtune=${TUNE}")
  48 else()
  49     add_compile_flags("-march=${OARCH}")
  50 endif()
  51
  52 # Warnings
  53 add_compile_flags("-Wall -Wno-char-subscripts -Wpointer-arith -Wno-multichar -Wno-unused-value")
  54
  55 if(GCC_VERSION VERSION_LESS 4.6)
  56     add_compile_flags("-Wno-error=uninitialized")
  57 elseif((GCC_VERSION VERSION_GREATER 4.6 OR GCC_VERSION VERSION_EQUAL 4.6) AND GCC_VERSION VERSION_LESS 4.7)
  58     add_compile_flags("-Wno-error=unused-but-set-variable -Wno-error=uninitialized")
  59 elseif(GCC_VERSION VERSION_EQUAL 4.7 OR GCC_VERSION VERSION_GREATER 4.7)
  60     add_compile_flags("-Wno-error=unused-but-set-variable -Wno-error=maybe-uninitialized -Wno-error=delete-non-virtual-dtor -Wno-error=narrowing")
  61 endif()
  62
  63 if(ARCH MATCHES amd64)
  64     add_compile_flags("-Wno-format")
  65 elseif(ARCH MATCHES arm)
  66     add_compile_flags("-Wno-attributes")
  67 endif()
  68
  69 # Optimizations
  70 if(OPTIMIZE STREQUAL "1")
  71     add_compile_flags("-Os")
  72 elseif(OPTIMIZE STREQUAL "2")
  73     add_compile_flags("-Os")
  74 elseif(OPTIMIZE STREQUAL "3")
  75     add_compile_flags("-O1")
  76 elseif(OPTIMIZE STREQUAL "4")
  77     add_compile_flags("-O2")
  78 elseif(OPTIMIZE STREQUAL "5")
  79     add_compile_flags("-O3")
  80 endif()
  81
  82 add_compile_flags("-fno-strict-aliasing")
  83
  84 if(ARCH MATCHES i386)
  85     add_compile_flags("-mpreferred-stack-boundary=2 -fno-set-stack-executable -fno-optimize-sibling-calls -fno-omit-frame-pointer")
  86     if(OPTIMIZE STREQUAL "1")
  87         add_compile_flags("-ftracer -momit-leaf-frame-pointer")
  88     endif()
  89 elseif(ARCH MATCHES amd64)
  90     add_compile_flags("-mpreferred-stack-boundary=4")
  91     if(OPTIMIZE STREQUAL "1")
  92         add_compile_flags("-ftracer -momit-leaf-frame-pointer")
  93     endif()
  94 elseif(ARCH MATCHES arm)
  95     if(OPTIMIZE STREQUAL "1")
  96         add_compile_flags("-ftracer")
  97     endif()
  98 endif()
  99
 100 # Other
 101 if(ARCH MATCHES amd64)
 102     add_definitions(-U_X86_ -UWIN32)
 103 elseif(ARCH MATCHES arm)
 104     add_definitions(-U_UNICODE -UUNICODE)
 105     add_definitions(-D__MSVCRT__) # DUBIOUS
 106 endif()
 107
 108 add_definitions(-D_inline=__inline)
 109
 110 # alternative arch name
 111 if(ARCH MATCHES amd64)
 112     set(ARCH2 x86_64)
 113 else()
 114     set(ARCH2 ${ARCH})
 115 endif()
 116
 117 if(SEPARATE_DBG)
 118     # PDB style debug puts all dwarf debug info in a separate dbg file
 119     set(OBJCOPY ${CMAKE_OBJCOPY})
 120     set(CMAKE_C_LINK_EXECUTABLE
 121         "<CMAKE_C_COMPILER> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>"
 122         "${OBJCOPY} --only-keep-debug <TARGET> ${REACTOS_BINARY_DIR}/symbols/<TARGET>.dbg"
 123         "${OBJCOPY} --strip-debug <TARGET>")
 124     set(CMAKE_CXX_LINK_EXECUTABLE
 125         "<CMAKE_CXX_COMPILER> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>"
 126         "${OBJCOPY} --only-keep-debug <TARGET> ${REACTOS_BINARY_DIR}/symbols/<TARGET>.dbg"
 127         "${OBJCOPY} --strip-debug <TARGET>")
 128     set(CMAKE_C_CREATE_SHARED_LIBRARY
 129         "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
 130         "${OBJCOPY} --only-keep-debug <TARGET> ${REACTOS_BINARY_DIR}/symbols/<TARGET>.dbg"
 131         "${OBJCOPY} --strip-debug <TARGET>")
 132     set(CMAKE_CXX_CREATE_SHARED_LIBRARY
 133         "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
 134         "${OBJCOPY} --only-keep-debug <TARGET> ${REACTOS_BINARY_DIR}/symbols/<TARGET>.dbg"
 135         "${OBJCOPY} --strip-debug <TARGET>")
 136     set(CMAKE_RC_CREATE_SHARED_LIBRARY
 137         "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
 138         "${OBJCOPY} --only-keep-debug <TARGET> ${REACTOS_BINARY_DIR}/symbols/<TARGET>.dbg"
 139         "${OBJCOPY} --strip-debug <TARGET>")
 140 else()
 141     # Normal rsym build
 142     get_target_property(RSYM native-rsym IMPORTED_LOCATION_NOCONFIG)
 143     set(CMAKE_C_LINK_EXECUTABLE
 144         "<CMAKE_C_COMPILER> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>"
 145         "${RSYM} <TARGET> <TARGET>")
 146     set(CMAKE_CXX_LINK_EXECUTABLE
 147         "<CMAKE_CXX_COMPILER> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>"
 148         "${RSYM} <TARGET> <TARGET>")
 149     set(CMAKE_C_CREATE_SHARED_LIBRARY
 150         "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
 151         "${RSYM} <TARGET> <TARGET>")
 152     set(CMAKE_CXX_CREATE_SHARED_LIBRARY
 153         "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
 154         "${RSYM} <TARGET> <TARGET>")
 155     set(CMAKE_RC_CREATE_SHARED_LIBRARY
 156         "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
 157         "${RSYM} <TARGET> <TARGET>")
 158 endif()
 159
 160 set(CMAKE_EXE_LINKER_FLAGS "-nostdlib -Wl,--enable-auto-image-base,--disable-auto-import,--disable-stdcall-fixup")
 161 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS_INIT} -Wl,--disable-stdcall-fixup")
 162
 163 SET(CMAKE_C_COMPILE_OBJECT "${CCACHE} <CMAKE_C_COMPILER> <DEFINES> <FLAGS> -o <OBJECT> -c <SOURCE>")
 164 SET(CMAKE_CXX_COMPILE_OBJECT "${CCACHE} <CMAKE_CXX_COMPILER>  <DEFINES> <FLAGS> -o <OBJECT> -c <SOURCE>")
 165 set(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> -x assembler-with-cpp -o <OBJECT> -I${REACTOS_SOURCE_DIR}/include/asm -I${REACTOS_BINARY_DIR}/include/asm <FLAGS> <DEFINES> -D__ASM__ -c <SOURCE>")
 166
 167 set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -i <SOURCE> <CMAKE_C_LINK_FLAGS> <DEFINES> ${I18N_DEFS} -DRC_INVOKED -D__WIN32__=1 -D__FLAT__=1 -I${REACTOS_SOURCE_DIR}/include/psdk -I${REACTOS_BINARY_DIR}/include/psdk -I${REACTOS_SOURCE_DIR}/include/ -I${REACTOS_SOURCE_DIR}/include/reactos -I${REACTOS_BINARY_DIR}/include/reactos -I${REACTOS_SOURCE_DIR}/include/reactos/wine -I${REACTOS_SOURCE_DIR}/include/crt -I${REACTOS_SOURCE_DIR}/include/crt/mingw32 -O coff -o <OBJECT>")
 168
 169 # Optional 3rd parameter: stdcall stack bytes
 170 function(set_entrypoint MODULE ENTRYPOINT)
 171     if(${ENTRYPOINT} STREQUAL "0")
 172         add_target_link_flags(${MODULE} "-Wl,-entry,0")
 173     elseif(ARCH MATCHES i386)
 174         set(_entrysymbol _${ENTRYPOINT})
 175         if(${ARGC} GREATER 2)
 176             set(_entrysymbol ${_entrysymbol}@${ARGV2})
 177         endif()
 178         add_target_link_flags(${MODULE} "-Wl,-entry,${_entrysymbol}")
 179     else()
 180         add_target_link_flags(${MODULE} "-Wl,-entry,${ENTRYPOINT}")
 181     endif()
 182 endfunction()
 183
 184 function(set_subsystem MODULE SUBSYSTEM)
 185     add_target_link_flags(${MODULE} "-Wl,--subsystem,${SUBSYSTEM}")
 186 endfunction()
 187
 188 function(set_image_base MODULE IMAGE_BASE)
 189     add_target_link_flags(${MODULE} "-Wl,--image-base,${IMAGE_BASE}")
 190 endfunction()
 191
 192 function(set_module_type_toolchain MODULE TYPE)
 193     if(IS_CPP)
 194         target_link_libraries(${MODULE} -lstdc++ -lsupc++ -lgcc -lmingwex)
 195     endif()
 196
 197     if(${TYPE} STREQUAL kernelmodedriver)
 198         add_target_link_flags(${MODULE} "-Wl,--exclude-all-symbols,-file-alignment=0x1000,-section-alignment=0x1000")
 199     endif()
 200 endfunction()
 201
 202 function(set_rc_compiler)
 203     get_directory_property(defines COMPILE_DEFINITIONS)
 204     get_directory_property(includes INCLUDE_DIRECTORIES)
 205
 206     foreach(arg ${defines})
 207         set(rc_result_defs "${rc_result_defs} -D${arg}")
 208     endforeach()
 209
 210     foreach(arg ${includes})
 211         set(rc_result_incs "-I${arg} ${rc_result_incs}")
 212     endforeach()
 213
 214     set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> ${rc_result_defs} ${I18N_DEFS} -DRC_INVOKED -D__WIN32__=1 -D__FLAT__=1 -I${CMAKE_CURRENT_SOURCE_DIR} ${rc_result_incs} -i <SOURCE> -O coff -o <OBJECT>" PARENT_SCOPE)
 215 endfunction()
 216
 217 function(add_delay_importlibs MODULE)
 218     foreach(LIB ${ARGN})
 219         target_link_libraries(${MODULE} lib${LIB}_delayed)
 220     endforeach()
 221     target_link_libraries(${MODULE} delayimp)
 222 endfunction()
 223
 224 if(NOT ARCH MATCHES i386)
 225     set(DECO_OPTION "-@")
 226 endif()
 227
 228 # Cute little hack to produce import libs
 229 set(CMAKE_IMPLIB_CREATE_STATIC_LIBRARY "${CMAKE_DLLTOOL} --def <OBJECTS> --kill-at --output-lib=<TARGET>")
 230 set(CMAKE_IMPLIB_DELAYED_CREATE_STATIC_LIBRARY "${CMAKE_DLLTOOL} --def <OBJECTS> --kill-at --output-delaylib=<TARGET>")
 231 function(add_importlib_target _exports_file _implib_name)
 232     get_filename_component(_name ${_exports_file} NAME_WE)
 233     get_filename_component(_extension ${_exports_file} EXT)
 234
 235     if(${_extension} STREQUAL ".spec")
 236
 237         # generate .def
 238         add_custom_command(
 239             OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_name}_implib.def
 240             COMMAND native-spec2def -n=${_implib_name} -a=${ARCH2} -d=${CMAKE_CURRENT_BINARY_DIR}/${_name}_implib.def ${CMAKE_CURRENT_SOURCE_DIR}/${_exports_file}
 241             DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${_exports_file} native-spec2def)
 242         set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${_name}_implib.def PROPERTIES EXTERNAL_OBJECT TRUE)
 243
 244         #create normal importlib
 245         add_library(lib${_name} STATIC EXCLUDE_FROM_ALL ${CMAKE_CURRENT_BINARY_DIR}/${_name}_implib.def)
 246         set_target_properties(lib${_name} PROPERTIES LINKER_LANGUAGE "IMPLIB" PREFIX "")
 247
 248         #create delayed importlib
 249         add_library(lib${_name}_delayed STATIC EXCLUDE_FROM_ALL ${CMAKE_CURRENT_BINARY_DIR}/${_name}_implib.def)
 250         set_target_properties(lib${_name}_delayed PROPERTIES LINKER_LANGUAGE "IMPLIB_DELAYED" PREFIX "")
 251     else()
 252         message(FATAL_ERROR "Unsupported exports file extension: ${_extension}")
 253     endif()
 254 endfunction()
 255
 256 function(spec2def _dllname _spec_file)
 257
 258     if(${ARGC} GREATER 2)
 259         set(_file ${ARGV2})
 260     else()
 261         get_filename_component(_file ${_spec_file} NAME_WE)
 262     endif()
 263
 264     add_custom_command(
 265         OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_file}.def ${CMAKE_CURRENT_BINARY_DIR}/${_file}_stubs.c
 266         COMMAND native-spec2def -n=${_dllname} --kill-at -a=${ARCH2} -d=${CMAKE_CURRENT_BINARY_DIR}/${_file}.def -s=${CMAKE_CURRENT_BINARY_DIR}/${_file}_stubs.c ${CMAKE_CURRENT_SOURCE_DIR}/${_spec_file}
 267         DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${_spec_file} native-spec2def)
 268     set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${_file}.def
 269         PROPERTIES GENERATED TRUE EXTERNAL_OBJECT TRUE)
 270     set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${_file}_stubs.c PROPERTIES GENERATED TRUE)
 271 endfunction()
 272
 273 macro(macro_mc FLAG FILE)
 274     set(COMMAND_MC ${CMAKE_MC_COMPILER} ${FLAG} -b ${CMAKE_CURRENT_SOURCE_DIR}/${FILE}.mc -r ${REACTOS_BINARY_DIR}/include/reactos -h ${REACTOS_BINARY_DIR}/include/reactos)
 275 endmacro()
 276
 277 #pseh lib, needed with mingw
 278 set(PSEH_LIB "pseh")
 279
 280 # Macros
 281 if(PCH)
 282     macro(_PCH_GET_COMPILE_FLAGS _target_name _out_compile_flags _header_filename)
 283         # Add the precompiled header to the build
 284         get_filename_component(_FILE ${_header_filename} NAME)
 285         set(_gch_filename "${_FILE}.gch")
 286         list(APPEND ${_out_compile_flags} -c ${_header_filename} -o ${_gch_filename})
 287
 288         # This gets us our includes
 289         get_directory_property(DIRINC INCLUDE_DIRECTORIES)
 290         foreach(item ${DIRINC})
 291             list(APPEND ${_out_compile_flags} -I${item})
 292         endforeach()
 293
 294         # This our definitions
 295         get_directory_property(_compiler_flags DEFINITIONS)
 296         list(APPEND ${_out_compile_flags} ${_compiler_flags})
 297
 298         # This gets any specific definitions that were added with set-target-property
 299         get_target_property(_target_defs ${_target_name} COMPILE_DEFINITIONS)
 300         if(_target_defs)
 301             foreach(item ${_target_defs})
 302                 list(APPEND ${_out_compile_flags} -D${item})
 303             endforeach()
 304         endif()
 305
 306         if(IS_CPP)
 307             list(APPEND ${_out_compile_flags} ${CMAKE_CXX_FLAGS})
 308         else()
 309             list(APPEND ${_out_compile_flags} ${CMAKE_C_FLAGS})
 310         endif()
 311
 312         separate_arguments(${_out_compile_flags})
 313     endmacro()
 314
 315     macro(add_pch _target_name _FILE)
 316         set(_header_filename ${CMAKE_CURRENT_SOURCE_DIR}/${_FILE})
 317         get_filename_component(_basename ${_FILE} NAME)
 318         set(_gch_filename ${_basename}.gch)
 319         _PCH_GET_COMPILE_FLAGS(${_target_name} _args ${_header_filename})
 320
 321         if(IS_CPP)
 322             set(__lang CXX)
 323             set(__compiler ${CCACHE} ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1})
 324         else()
 325             set(__lang C)
 326             set(__compiler ${CCACHE} ${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1})
 327         endif()
 328
 329         add_custom_command(OUTPUT ${_gch_filename}
 330             COMMAND ${__compiler} ${_args}
 331             IMPLICIT_DEPENDS ${__lang} ${_header_filename}
 332             DEPENDS ${_header_filename} ${ARGN})
 333         get_target_property(_src_files ${_target_name} SOURCES)
 334         add_target_compile_flags(${_target_name} "-fpch-preprocess -Winvalid-pch -Wno-error=invalid-pch")
 335         foreach(_item in ${_src_files})
 336             get_source_file_property(__src_lang ${_item} LANGUAGE)
 337             if(__src_lang STREQUAL __lang)
 338                 set_source_files_properties(${_item} PROPERTIES OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${_gch_filename})
 339             endif()
 340         endforeach()
 341         #set dependency checking : depends on precompiled header only which already depends on deeper header
 342         set_target_properties(${_target_name} PROPERTIES IMPLICIT_DEPENDS_INCLUDE_TRANSFORM "\"${_basename}\"=;<${_basename}>=")
 343     endmacro()
 344 else()
 345     macro(add_pch _target_name _FILE)
 346     endmacro()
 347 endif()
 348
 349 function(CreateBootSectorTarget _target_name _asm_file _object_file _base_address)
 350     get_filename_component(OBJECT_PATH ${_object_file} PATH)
 351     get_filename_component(OBJECT_NAME ${_object_file} NAME)
 352     file(MAKE_DIRECTORY ${OBJECT_PATH})
 353     get_directory_property(defines COMPILE_DEFINITIONS)
 354     get_directory_property(includes INCLUDE_DIRECTORIES)
 355
 356     foreach(arg ${defines})
 357         set(result_defs ${result_defs} -D${arg})
 358     endforeach()
 359
 360     foreach(arg ${includes})
 361         set(result_incs -I${arg} ${result_incs})
 362     endforeach()
 363
 364     add_custom_command(
 365         OUTPUT ${_object_file}
 366         COMMAND nasm -o ${_object_file} ${result_incs} ${result_defs} -f bin ${_asm_file}
 367         DEPENDS ${_asm_file})
 368     set_source_files_properties(${_object_file} PROPERTIES GENERATED TRUE)
 369     add_custom_target(${_target_name} ALL DEPENDS ${_object_file})
 370 endfunction()
 371
 372 function(CreateBootSectorTarget2 _target_name _asm_file _binary_file _base_address)
 373     set(_object_file ${_binary_file}.o)
 374
 375     add_custom_command(
 376         OUTPUT ${_object_file}
 377         COMMAND ${CMAKE_ASM_COMPILER} -x assembler-with-cpp -o ${_object_file} -I${REACTOS_SOURCE_DIR}/include/asm -I${REACTOS_BINARY_DIR}/include/asm -D__ASM__ -c ${_asm_file}
 378         DEPENDS ${_asm_file})
 379
 380     add_custom_command(
 381         OUTPUT ${_binary_file}
 382         COMMAND native-obj2bin ${_object_file} ${_binary_file} ${_base_address}
 383         # COMMAND objcopy --output-target binary --image-base 0x${_base_address} ${_object_file} ${_binary_file}
 384         DEPENDS ${_object_file} native-obj2bin)
 385
 386     set_source_files_properties(${_object_file} ${_binary_file} PROPERTIES GENERATED TRUE)
 387
 388     add_custom_target(${_target_name} ALL DEPENDS ${_binary_file})
 389
 390 endfunction()
 391
 392 function(allow_warnings __module)
 393     add_target_compile_flags(${__module} "-Wno-error")
 394 endfunction()