# -*- cmake -*- # # Compilation options shared by all Second Life components. #***************************************************************************** # It's important to realize that CMake implicitly concatenates # CMAKE_CXX_FLAGS with (e.g.) CMAKE_CXX_FLAGS_RELEASE for Release builds. So # set switches in CMAKE_CXX_FLAGS that should affect all builds, but in # CMAKE_CXX_FLAGS_RELEASE or CMAKE_CXX_FLAGS_RELWITHDEBINFO for switches # that should affect only that build variant. # # Also realize that CMAKE_CXX_FLAGS may already be partially populated on # entry to this file. #***************************************************************************** if(NOT DEFINED ${CMAKE_CURRENT_LIST_FILE}_INCLUDED) set(${CMAKE_CURRENT_LIST_FILE}_INCLUDED "YES") include(Variables) # We go to some trouble to set LL_BUILD to the set of relevant compiler flags. set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} $ENV{LL_BUILD}") # Given that, all the flags you see added below are flags NOT present in # https://bitbucket.org/lindenlab/viewer-build-variables/src/tip/variables. # Before adding new ones here, it's important to ask: can this flag really be # applied to the viewer only, or should/must it be applied to all 3p libraries # as well? # Portable compilation flags. set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DADDRESS_SIZE=${ADDRESS_SIZE}") # Configure crash reporting set(RELEASE_CRASH_REPORTING OFF CACHE BOOL "Enable use of crash reporting in release builds") set(NON_RELEASE_CRASH_REPORTING OFF CACHE BOOL "Enable use of crash reporting in developer builds") if(RELEASE_CRASH_REPORTING) set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DLL_SEND_CRASH_REPORTS=1") endif() if(NON_RELEASE_CRASH_REPORTING) set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -DLL_SEND_CRASH_REPORTS=1") set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DLL_SEND_CRASH_REPORTS=1") endif() # Don't bother with a MinSizeRel build. set(CMAKE_CONFIGURATION_TYPES "RelWithDebInfo;Release;Debug" CACHE STRING "Supported build types." FORCE) # Platform-specific compilation flags. if (WINDOWS) # Don't build DLLs. set(BUILD_SHARED_LIBS OFF) # for "backwards compatibility", cmake sneaks in the Zm1000 option which royally # screws incredibuild. this hack disables it. # for details see: http://connect.microsoft.com/VisualStudio/feedback/details/368107/clxx-fatal-error-c1027-inconsistent-values-for-ym-between-creation-and-use-of-precompiled-headers # http://www.ogre3d.org/forums/viewtopic.php?f=2&t=60015 # http://www.cmake.org/pipermail/cmake/2009-September/032143.html string(REPLACE "/Zm1000" " " CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) # Without PreferredToolArchitecture=x64, as of 2020-06-26 the 32-bit # compiler on our TeamCity build hosts has started running out of virtual # memory for the precompiled header file. # CP changed to only append the flag for 32bit builds - on 64bit builds, # locally at least, the build output is spammed with 1000s of 'D9002' # warnings about this switch being ignored. # We need std::string_view, but that's not available without /std:c++17. set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP /std:c++17") if( ADDRESS_SIZE EQUAL 32 ) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /p:PreferredToolArchitecture=x64") endif() set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /Zo" CACHE STRING "C++ compiler release-with-debug options" FORCE) set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${LL_CXX_FLAGS} /Zo" CACHE STRING "C++ compiler release options" FORCE) # zlib has assembly-language object files incompatible with SAFESEH set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /LARGEADDRESSAWARE /SAFESEH:NO /NODEFAULTLIB:LIBCMT /IGNORE:4099") set(CMAKE_CXX_STANDARD_LIBRARIES "") set(CMAKE_C_STANDARD_LIBRARIES "") add_definitions( /DNOMINMAX # /DDOM_DYNAMIC # For shared library colladadom ) add_compile_options( /GS /TP /W3 /c /Zc:forScope /nologo /Oy- # /arch:SSE2 /fp:fast ) # Nicky: x64 implies SSE2 if( ADDRESS_SIZE EQUAL 32 ) add_definitions( /arch:SSE2 ) endif() # Are we using the crummy Visual Studio KDU build workaround? if (NOT VS_DISABLE_FATAL_WARNINGS) add_definitions(/WX) endif (NOT VS_DISABLE_FATAL_WARNINGS) endif (WINDOWS) if (LINUX) set(CMAKE_SKIP_RPATH TRUE) add_definitions(-D_FORTIFY_SOURCE=2) set(CMAKE_CXX_FLAGS "-Wno-deprecated -Wno-unused-but-set-variable -Wno-unused-variable ${CMAKE_CXX_FLAGS}") # gcc 4.3 and above don't like the LL boost and also # cause warnings due to our use of deprecated headers add_definitions(-Wno-parentheses) add_definitions( -D_REENTRANT ) add_compile_options( -fexceptions -fno-math-errno -fno-strict-aliasing -fsigned-char -msse2 -mfpmath=sse -pthread ) # force this platform to accept TOS via external browser add_definitions(-DEXTERNAL_TOS) add_definitions(-DAPPID=secondlife) add_compile_options(-fvisibility=hidden) # don't catch SIGCHLD in our base application class for the viewer - some of # our 3rd party libs may need their *own* SIGCHLD handler to work. Sigh! The # viewer doesn't need to catch SIGCHLD anyway. add_definitions(-DLL_IGNORE_SIGCHLD) if (ADDRESS_SIZE EQUAL 32) add_compile_options(-march=pentium4) endif (ADDRESS_SIZE EQUAL 32) #add_compile_options(-ftree-vectorize) # THIS CRASHES GCC 3.1-3.2 if (NOT USESYSTEMLIBS) # this stops us requiring a really recent glibc at runtime add_compile_options(-fno-stack-protector) # linking can be very memory-hungry, especially the final viewer link set(CMAKE_CXX_LINK_FLAGS "-Wl,--no-keep-memory") endif (NOT USESYSTEMLIBS) set(CMAKE_CXX_FLAGS_DEBUG "-fno-inline ${CMAKE_CXX_FLAGS_DEBUG}") endif (LINUX) if (DARWIN) # Warnings should be fatal -- thanks, Nicky Perian, for spotting reversed default set(CLANG_DISABLE_FATAL_WARNINGS OFF) set(CMAKE_CXX_LINK_FLAGS "-Wl,-headerpad_max_install_names,-search_paths_first") set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_CXX_LINK_FLAGS}") set(DARWIN_extra_cstar_flags "-Wno-unused-local-typedef -Wno-deprecated-declarations") # Ensure that CMAKE_CXX_FLAGS has the correct -g debug information format -- # see Variables.cmake. string(REPLACE "-gdwarf-2" "-g${CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT}" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") # The viewer code base can now be successfully compiled with -std=c++14. But # turning that on in the generic viewer-build-variables/variables file would # potentially require tweaking each of our ~50 third-party library builds. # Until we decide to set -std=c++14 in viewer-build-variables/variables, set # it locally here: we want to at least prevent inadvertently reintroducing # viewer code that would fail with C++14. set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${DARWIN_extra_cstar_flags} -std=c++17") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${DARWIN_extra_cstar_flags}") # NOTE: it's critical that the optimization flag is put in front. # NOTE: it's critical to have both CXX_FLAGS and C_FLAGS covered. ## Really?? On developer machines too? ##set(ENABLE_SIGNING TRUE) ##set(SIGNING_IDENTITY "Developer ID Application: Linden Research, Inc.") endif (DARWIN) if (LINUX OR DARWIN) if (CMAKE_CXX_COMPILER MATCHES ".*clang") set(CMAKE_COMPILER_IS_CLANGXX 1) endif (CMAKE_CXX_COMPILER MATCHES ".*clang") if (CMAKE_COMPILER_IS_GNUCXX) set(GCC_WARNINGS "-Wall -Wno-sign-compare -Wno-trigraphs") elseif (CMAKE_COMPILER_IS_CLANGXX) set(GCC_WARNINGS "-Wall -Wno-sign-compare -Wno-trigraphs") endif() if (NOT GCC_DISABLE_FATAL_WARNINGS) set(GCC_WARNINGS "${GCC_WARNINGS} -Werror") endif (NOT GCC_DISABLE_FATAL_WARNINGS) set(GCC_CXX_WARNINGS "${GCC_WARNINGS} -Wno-reorder -Wno-non-virtual-dtor") set(CMAKE_C_FLAGS "${GCC_WARNINGS} ${CMAKE_C_FLAGS}") set(CMAKE_CXX_FLAGS "${GCC_CXX_WARNINGS} ${CMAKE_CXX_FLAGS}") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m${ADDRESS_SIZE}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m${ADDRESS_SIZE}") endif (LINUX OR DARWIN) if (USESYSTEMLIBS) add_definitions(-DLL_USESYSTEMLIBS=1) if (LINUX AND ADDRESS_SIZE EQUAL 32) add_definitions(-march=pentiumpro) endif (LINUX AND ADDRESS_SIZE EQUAL 32) else (USESYSTEMLIBS) set(${ARCH}_linux_INCLUDES ELFIO atk-1.0 glib-2.0 gstreamer-0.10 gtk-2.0 pango-1.0 ) endif (USESYSTEMLIBS) endif(NOT DEFINED ${CMAKE_CURRENT_LIST_FILE}_INCLUDED)