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mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-03 17:56:21 +03:00
occt/adm/cmake/occt_defs_flags.cmake
abv 100592c117 0027053: Compilation fails with "fatal error RC1103: invalid option, /fp:precise"
CMake script is corrected to add compiler options (except macro definitions) to CMAKE_CXX_FLAGS and CMAKE_C_FLAGS variables directly, instead of using add_definitions() command.
This eliminates failure of build by NMake due to incorrect options passed to RC compiler.
2016-02-12 00:06:43 +03:00

109 lines
3.9 KiB
CMake

##
if(FLAGS_ALREADY_INCLUDED)
return()
endif()
set(FLAGS_ALREADY_INCLUDED 1)
if (MSVC)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fp:precise")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fp:precise")
endif()
# set compiler short name and choose SSE2 option for appropriate MSVC compilers
# ONLY for 32-bit
if (NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
if (MSVC80 OR MSVC90 OR MSVC10)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:SSE2")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /arch:SSE2")
endif()
endif()
if (WIN32)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -wd4996")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -wd4996")
else()
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fexceptions -fPIC")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexceptions -fPIC")
add_definitions(-DOCC_CONVERT_SIGNALS)
endif()
# enable structured exceptions for MSVC
string (REGEX MATCH "EHsc" ISFLAG "${CMAKE_CXX_FLAGS}")
if (ISFLAG)
string (REGEX REPLACE "EHsc" "EHa" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
elseif (WIN32)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -EHa")
endif()
# remove _WINDOWS flag if it exists
string (REGEX MATCH "/D_WINDOWS" IS_WINDOWSFLAG "${CMAKE_CXX_FLAGS}")
if (IS_WINDOWSFLAG)
message (STATUS "Info: /D_WINDOWS has been removed from CMAKE_CXX_FLAGS")
string (REGEX REPLACE "/D_WINDOWS" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
endif()
# remove WIN32 flag if it exists
string (REGEX MATCH "/DWIN32" IS_WIN32FLAG "${CMAKE_CXX_FLAGS}")
if (IS_WIN32FLAG)
message (STATUS "Info: /DWIN32 has been removed from CMAKE_CXX_FLAGS")
string (REGEX REPLACE "/DWIN32" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
endif()
# remove _WINDOWS flag if it exists
string (REGEX MATCH "/D_WINDOWS" IS_WINDOWSFLAG "${CMAKE_C_FLAGS}")
if (IS_WINDOWSFLAG)
message (STATUS "Info: /D_WINDOWS has been removed from CMAKE_C_FLAGS")
string (REGEX REPLACE "/D_WINDOWS" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif()
# remove WIN32 flag if it exists
string (REGEX MATCH "/DWIN32" IS_WIN32FLAG "${CMAKE_C_FLAGS}")
if (IS_WIN32FLAG)
message (STATUS "Info: /DWIN32 has been removed from CMAKE_C_FLAGS")
string (REGEX REPLACE "/DWIN32" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
endif()
# remove DEBUG flag if it exists
string (REGEX MATCH "-DDEBUG" IS_DEBUG_CXX "${CMAKE_CXX_FLAGS_DEBUG}")
if (IS_DEBUG_CXX)
message (STATUS "Info: -DDEBUG has been removed from CMAKE_CXX_FLAGS_DEBUG")
string (REGEX REPLACE "-DDEBUG" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
endif()
string (REGEX MATCH "-DDEBUG" IS_DEBUG_C "${CMAKE_C_FLAGS_DEBUG}")
if (IS_DEBUG_C)
message (STATUS "Info: -DDEBUG has been removed from CMAKE_C_FLAGS_DEBUG")
string (REGEX REPLACE "-DDEBUG" "" CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}")
endif()
# enable parallel compilation on MSVC 9 and above
if (MSVC AND NOT MSVC70 AND NOT MSVC80)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -MP")
endif()
# generate a single response file which enlist all of the object files
SET(CMAKE_C_USE_RESPONSE_FILE_FOR_OBJECTS 1)
SET(CMAKE_CXX_USE_RESPONSE_FILE_FOR_OBJECTS 1)
# increase compiler warnings level (-W4 for MSVC, -Wextra for GCC)
if (MSVC)
if (CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
string (REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
else()
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
endif()
elseif (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
endif()
if (DEFINED CMAKE_COMPILER_IS_GNUCXX OR "x${CMAKE_CXX_COMPILER_ID}" STREQUAL "xClang")
set (CMAKE_CXX_FLAGS "-std=c++0x ${CMAKE_CXX_FLAGS}")
endif()
# Optimize size of binaries
if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR MINGW)
set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -s")
set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -s")
endif()
set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNo_Exception")
set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNo_Exception")