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# -*- 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)
|
