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CMakeLists.txt
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CMakeLists.txt
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# CMakeLists.txt
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <[email protected]>
# Copyright 1998 Gerald Combs
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
project(Wireshark C CXX)
# Updated by make-version.pl
set(GIT_REVISION 0)
set(PROJECT_MAJOR_VERSION 2)
set(PROJECT_MINOR_VERSION 5)
set(PROJECT_PATCH_VERSION 1)
set(PROJECT_BUILD_VERSION ${GIT_REVISION})
set(PROJECT_VERSION_EXTENSION "")
set(PROJECT_RELEASE_VERSION "${PROJECT_MAJOR_VERSION}.${PROJECT_MINOR_VERSION}")
if(DEFINED ENV{WIRESHARK_VERSION_EXTRA})
set(PROJECT_VERSION_EXTENSION "$ENV{WIRESHARK_VERSION_EXTRA}")
endif()
set(PROJECT_VERSION "${PROJECT_MAJOR_VERSION}.${PROJECT_MINOR_VERSION}.${PROJECT_PATCH_VERSION}${PROJECT_VERSION_EXTENSION}")
# packaging information
if(WIN32)
set(CPACK_PACKAGE_NAME Wireshark)
else()
set(CPACK_PACKAGE_NAME wireshark)
endif()
set(CPACK_PACKAGE_VERSION "${PROJECT_VERSION}")
message(STATUS "Generating build using CMake ${CMAKE_VERSION}")
if(WIN32)
# Needed for GREATER_EQUAL operator
cmake_minimum_required(VERSION 3.7)
else()
cmake_minimum_required(VERSION 2.8.12)
endif()
#Where to find local cmake scripts
set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
# Set old behaviour for MACOSX_RPATH (since 3.0)
if (POLICY CMP0042)
cmake_policy(SET CMP0042 OLD)
endif()
# Set old behaviour for variable quoting (since 3.1)
if (POLICY CMP0054)
cmake_policy(SET CMP0054 OLD)
endif()
# If our target platform is enforced by our generator, set
# WIRESHARK_TARGET_PLATFORM accordingly. Otherwise use
# %WIRESHARK_TARGET_PLATFORM%.
if(WIN32)
find_package(PowerShell REQUIRED)
if(${CMAKE_CL_64} OR "${CMAKE_GENERATOR}" MATCHES "Win64")
set(WIRESHARK_TARGET_PLATFORM win64)
elseif("${CMAKE_GENERATOR}" MATCHES "Visual Studio")
set(WIRESHARK_TARGET_PLATFORM win32)
else()
set(WIRESHARK_TARGET_PLATFORM $ENV{WIRESHARK_TARGET_PLATFORM})
endif()
if ("${WIRESHARK_TARGET_PLATFORM}" MATCHES "win64")
set(WIRESHARK_TARGET_PROCESSOR_ARCHITECTURE amd64)
else()
set(WIRESHARK_TARGET_PROCESSOR_ARCHITECTURE x86)
endif()
# Sanity check
if(DEFINED ENV{PLATFORM})
string(TOLOWER $ENV{PLATFORM} _vs_platform)
else()
set(_vs_platform "[undefined]") # x86
endif()
if(
(_vs_platform STREQUAL "x64" AND NOT WIRESHARK_TARGET_PLATFORM STREQUAL "win64")
OR
(_vs_platform STREQUAL "[undefined]" AND NOT WIRESHARK_TARGET_PLATFORM STREQUAL "win32")
)
message(FATAL_ERROR "The PLATFORM environment variable (${_vs_platform})"
" doesn't match the generator platform (${WIRESHARK_TARGET_PLATFORM})")
endif()
message(STATUS "Building for ${WIRESHARK_TARGET_PLATFORM} using ${CMAKE_GENERATOR}")
# Determine where the 3rd party libraries will be
if( DEFINED ENV{WIRESHARK_LIB_DIR} )
# The buildbots set WIRESHARK_LIB_DIR but not WIRESHARK_BASE_DIR.
file( TO_CMAKE_PATH "$ENV{WIRESHARK_LIB_DIR}" _PROJECT_LIB_DIR )
elseif( DEFINED ENV{WIRESHARK_BASE_DIR} )
file( TO_CMAKE_PATH "$ENV{WIRESHARK_BASE_DIR}" _WS_BASE_DIR )
set( _PROJECT_LIB_DIR "${_WS_BASE_DIR}/wireshark-${WIRESHARK_TARGET_PLATFORM}-libs" )
else()
# Don't know what to do
message(FATAL_ERROR "Neither WIRESHARK_BASE_DIR or WIRESHARK_LIB_DIR are defined")
endif()
# Download third-party libraries
file (TO_NATIVE_PATH ${CMAKE_SOURCE_DIR}/tools/win-setup.ps1 _win_setup)
file (TO_NATIVE_PATH ${_PROJECT_LIB_DIR} _ws_lib_dir)
if(MSVC14)
set(_vsversion_args "14")
elseif(MSVC12)
set(_vsversion_args "12")
elseif(MSVC11)
set(_vsversion_args "11")
elseif(MSVC10)
set(_vsversion_args "10")
else()
message(FATAL_ERROR "Unsupported compiler ${CMAKE_C_COMPILER}")
endif()
# Is it possible to have a one-time, non-cached option in CMake? If
# so, we could add a "-DFORCE_WIN_SETUP" which passes -Force to
# win-setup.ps1.
execute_process(
COMMAND ${POWERSHELL_COMMAND} "\"${_win_setup}\"" -Destination "${_ws_lib_dir}" -Platform ${WIRESHARK_TARGET_PLATFORM} -VSVersion ${_vsversion_args}
RESULT_VARIABLE _win_setup_failed
)
if (${_win_setup_failed})
message(FATAL_ERROR "Windows setup (win-setup.ps1) failed.")
endif()
# XXX Add a dependency on ${_ws_lib_dir}/current_tag.txt?
# Head off any attempts to use Cygwin's Python.
include(LocatePythonExecutable)
endif(WIN32)
include(UseCustomIncludes)
ADD_CUSTOM_CMAKE_INCLUDE()
# This cannot be implemented via option(...)
if( NOT CMAKE_BUILD_TYPE )
set( CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
FORCE)
endif()
message(STATUS "Configuration types: ${CMAKE_CONFIGURATION_TYPES}")
string(TOUPPER "${CMAKE_BUILD_TYPE}" _build_type)
message(STATUS "CMAKE_C_FLAGS_${_build_type}: ${CMAKE_C_FLAGS_${_build_type}}")
message(STATUS "CMAKE_CXX_FLAGS_${_build_type}: ${CMAKE_CXX_FLAGS_${_build_type}}")
# Ensure that all executables and libraries end up in the same directory. Actual
# files might end up in a configuration subdirectory, e.g. run/Debug or
# run/Release. We try to set DATAFILE_DIR to actual location below.
if(NOT ARCHIVE_OUTPUT_PATH)
set(ARCHIVE_OUTPUT_PATH ${Wireshark_BINARY_DIR}/run CACHE INTERNAL
"Single output directory for building all archives.")
endif()
if(NOT EXECUTABLE_OUTPUT_PATH)
set(EXECUTABLE_OUTPUT_PATH ${Wireshark_BINARY_DIR}/run CACHE INTERNAL
"Single output directory for building all executables.")
endif()
if(NOT LIBRARY_OUTPUT_PATH)
set(LIBRARY_OUTPUT_PATH ${Wireshark_BINARY_DIR}/run CACHE INTERNAL
"Single output directory for building all libraries.")
endif()
#
# The release mode (CMAKE_BUILD_TYPE=release) defines NDEBUG for
# the Unix Makefile generator.
#
#Defines CMAKE_INSTALL_BINDIR, CMAKE_INSTALL_DATADIR, etc ...
include(GNUInstallDirs)
# Make sure our executables can can load our libraries if we install into
# a non-default directory on Unix-like systems other than macOS.
# https://cmake.org/Wiki/CMake_RPATH_handling
if(NOT CMAKE_INSTALL_RPATH AND NOT (WIN32 OR APPLE))
LIST(FIND CMAKE_C_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_FULL_LIBDIR}" IS_SYSTEM_DIR)
if("${IS_SYSTEM_DIR}" STREQUAL "-1")
SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_FULL_LIBDIR}")
SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
endif("${IS_SYSTEM_DIR}" STREQUAL "-1")
endif()
# Banner shown at top right of Qt welcome screen.
if(DEFINED ENV{WIRESHARK_VERSION_FLAVOR})
set(VERSION_FLAVOR "$ENV{WIRESHARK_VERSION_FLAVOR}")
else()
set(VERSION_FLAVOR "Development Build")
endif()
# These are required in .rc files and manifests
set(VERSION_MAJOR ${PROJECT_MAJOR_VERSION})
set(VERSION_MINOR ${PROJECT_MINOR_VERSION})
set(VERSION_MICRO ${PROJECT_PATCH_VERSION})
set(VERSION_BUILD ${PROJECT_BUILD_VERSION})
set(RC_VERSION ${PROJECT_MAJOR_VERSION},${PROJECT_MINOR_VERSION},${PROJECT_PATCH_VERSION},${PROJECT_BUILD_VERSION})
message(STATUS "V: ${PROJECT_VERSION}, MaV: ${PROJECT_MAJOR_VERSION}, MiV: ${PROJECT_MINOR_VERSION}, PL: ${PROJECT_PATCH_VERSION}, EV: ${PROJECT_VERSION_EXTENSION}.")
include(UseLemon)
include(UseMakePluginReg)
include(UseMakeTaps)
include(UseAsn2Wrs)
# The following snippet has been taken from
# https://github.com/USESystemEngineeringBV/cmake-eclipse-helper/wiki/HowToWorkaroundIndexer
# The eclipse indexer otherwise assumes __cplusplus=199711L which will lead to broken
# lookup tables for the epan libraries
# Check if CXX flags have been set to c++11 -> Setup Eclipse Indexer correctly!
# Also setup the project slightly different
if (${CMAKE_EXTRA_GENERATOR} MATCHES "Eclipse CDT4" )
SET(CXX_ENABLED 0)
LIST(LENGTH CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS LIST_LEN)
if ( ${LIST_LEN} GREATER 0 )
SET(CXX_ENABLED 1)
endif()
SET(C_ENABLED 0)
LIST(LENGTH CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS LIST_LEN)
if ( ${LIST_LEN} GREATER 0)
SET(C_ENABLED 1)
endif()
if (${C_ENABLED} EQUAL 1 AND ${CXX_ENABLED} EQUAL 1)
# Combined project (C and CXX). This will confuse the indexer. For that reason
# we unsert set the __cplusplus variable for the indexer
list(FIND CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS "__cplusplus" GEN_MACRO_INDEX)
if( ${GEN_MACRO_INDEX} GREATER -1 )
list(REMOVE_AT CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS ${GEN_MACRO_INDEX})
list(REMOVE_AT CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS ${GEN_MACRO_INDEX})
endif()
SET(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS ${CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS} CACHE INTERNAL "")
elseif ( (${CXX_ENABLED} EQUAL 1) AND (${CMAKE_CXX_FLAGS} MATCHES ".*-std=c\\+\\+11.*"))
#add_definitions (-D__cplusplus=201103L)
# CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS
list(FIND CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS "199711L" GEN_MACRO_INDEX)
if( ${GEN_MACRO_INDEX} GREATER -1 )
list(REMOVE_AT CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS ${GEN_MACRO_INDEX})
list(INSERT CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS ${GEN_MACRO_INDEX} "201103L")
SET(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS ${CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS} CACHE INTERNAL "")
endif()
endif()
endif()
include_directories(
${CMAKE_BINARY_DIR}
${CMAKE_SOURCE_DIR}
)
include( CMakeOptions.txt )
if( DUMPCAP_INSTALL_OPTION STREQUAL "suid" )
set( DUMPCAP_SETUID "SETUID" )
else()
set( DUMPCAP_SETUID )
endif()
if( NOT CMAKE_SYSTEM_NAME STREQUAL "Linux" AND
DUMPCAP_INSTALL_OPTION STREQUAL "capabilities" )
message( WARNING "Capabilities are only supported on Linux" )
set( DUMPCAP_INSTALL_OPTION )
endif()
if(APPLE AND EXISTS /usr/local/opt/qt5)
# Homebrew installs Qt5 (up to at least 5.9.1) in
# /usr/local/qt5, ensure it can be found by CMake since
# it is not in the default /usr/local prefix.
list(APPEND CMAKE_PREFIX_PATH "/usr/local/opt/qt5")
endif()
# Always enable position-independent code when compiling, even for
# executables, so you can build position-independent executables.
# -pie is added below for non-MSVC.
# Needed when either:
# - Qt5_POSITION_INDEPENDENT_CODE is set and CMake < 2.8.11
# - PIE is wanted (-pie) and you want to add -fPIC/-fPIE automatically.
# This option only has an effect on CMake >= 2.8.9
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
if( CMAKE_C_COMPILER_ID MATCHES "MSVC")
if (MSVC10)
set(MSC_VER_REQUIRED 1600)
elseif(MSVC11)
set(MSC_VER_REQUIRED 1700)
elseif(MSVC12)
set(MSC_VER_REQUIRED 1800)
elseif(MSVC14)
set(MSC_VER_REQUIRED 1900)
else()
message(FATAL_ERROR "You are using an unsupported version of MSVC")
endif()
add_definitions(
/DWIN32_LEAN_AND_MEAN
"/DMSC_VER_REQUIRED=${MSC_VER_REQUIRED}"
/D_CRT_SECURE_NO_DEPRECATE
# NOMINMAX keeps windows.h from defining "min" and "max" via windef.h.
# This avoids conflicts with the C++ standard library.
/DNOMINMAX
# -DPSAPI_VERSION=1 Programs that must run on earlier versions of Windows as well as Windows 7 and later
# versions should always call this function as GetProcessMemoryInfo. To ensure correct
# resolution of symbols, add Psapi.lib to the TARGETLIBS macro and compile the program
# with -DPSAPI_VERSION=1.To use run-time dynamic linking, load Psapi.dll.
# http://msdn.microsoft.com/en-us/library/windows/desktop/ms683219(v=vs.85).aspx
# -DBUILD_WINDOWS Starting from VS2013, GetVersionEx is deprecated and we are recommended to use
# VerifyVersionInfo instead
# http://msdn.microsoft.com/en-us/library/windows/desktop/ms724429(v=vs.85).aspx
# http://msdn.microsoft.com/en-us/library/windows/desktop/ms725491(v=vs.85).aspx
# To continue to use GetVersionEx, we can define BUILD_WINDOWS
# -D_ALLOW_KEYWORD_MACROS For VS2012 onwards the, C++ STL does not permit macro redefinitions of keywords
# (see http://msdn.microsoft.com/en-us/library/bb531344(v=vs.110).aspx)
# This definition prevents the complaint about the redefinition of inline by WinPCap
# in pcap-stdinc.h when compiling C++ files, e.g. the Qt UI
/DPSAPI_VERSION=1
/DBUILD_WINDOWS
/D_ALLOW_KEYWORD_MACROS
)
if(NOT "${WIRESHARK_TARGET_PLATFORM}" STREQUAL "win64")
add_definitions("/D_BIND_TO_CURRENT_CRT_VERSION=1")
endif()
# FIXME: WINPCAP_VERSION cannot be determined from source or executable.
set(WINPCAP_VERSION "4_1_3")
add_definitions("/DWINPCAP_VERSION=${WINPCAP_VERSION}")
set(LOCAL_CFLAGS
/MP
)
set(WS_LINK_FLAGS "/LARGEADDRESSAWARE /MANIFEST:NO /INCREMENTAL:NO /RELEASE")
if(MSVC12)
# /Zo Enhanced debugging of optimised code for VS2013 Update 3 and beyond,
# Assume all VS2013 builds are at least Update 3.
# See http://msdn.microsoft.com/en-us/library/dn785163.aspx
set(LOCAL_CFLAGS ${LOCAL_CFLAGS} /Zo)
elseif(MSVC14)
# /Zo Enhanced debugging of optimised code
# /utf-8 Set Source and Executable character sets to UTF-8
# VS2015(MSVC14): On by default when /Zi or /Z7 used.
# /guard:cf Control Flow Guard (compile and link).
# See https://msdn.microsoft.com/en-us/library/windows/desktop/mt637065.aspx
# Note: This requires CMake 3.9.0 or newer.
# https://gitlab.kitware.com/cmake/cmake/commit/f973d49ab9d4c59b93f6dac812a94bb130200836
# /Qspectre Speculative execution attack mitigation
# See https://blogs.msdn.microsoft.com/vcblog/2018/01/15/spectre-mitigations-in-msvc/
set(LOCAL_CFLAGS ${LOCAL_CFLAGS} /Zo /utf-8 /guard:cf /Qspectre)
set(WS_LINK_FLAGS "${WS_LINK_FLAGS} /guard:cf")
endif()
if(ENABLE_CODE_ANALYSIS)
set(LOCAL_CFLAGS ${LOCAL_CFLAGS} /analyze:WX-)
endif()
# Additional compiler warnings to be treated as "Level 3"
# when compiling Wireshark sources. (Selected from "level 4" warnings).
## 4295: array is too small to include a terminating null character
## 4189: local variable is initialized but not referenced
# Disable warnings about about use of flexible array members:
## 4200: nonstandard extension used : zero-sized array in struct/union
set(WARNINGS_CFLAGS /w34295 /w34189 /wd4200)
set(WIRESHARK_COMMON_FLAGS
${LOCAL_CFLAGS}
${WARNINGS_CFLAGS}
)
else() # ! MSVC
if(CMAKE_OSX_DEPLOYMENT_TARGET)
if(APPLE)
if(${CMAKE_OSX_DEPLOYMENT_TARGET} STREQUAL "10.0")
message(FATAL_ERROR "We don't support building for Mac OS X 10.0")
elseif(${CMAKE_OSX_DEPLOYMENT_TARGET} STREQUAL "10.1")
message(FATAL_ERROR "We don't support building for Mac OS X 10.1")
elseif(${CMAKE_OSX_DEPLOYMENT_TARGET} STREQUAL "10.2")
message(FATAL_ERROR "We don't support building for Mac OS X 10.2")
elseif(${CMAKE_OSX_DEPLOYMENT_TARGET} STREQUAL "10.4" OR ${CMAKE_OSX_DEPLOYMENT_TARGET} STREQUAL "10.5")
#
# Only 32-bit builds are supported. 10.5
# (and 10.4?) had a bug that causes some BPF
# functions not to work with 64-bit userland
# code, so capturing won't work.
#
set(CMAKE_C_FLAGS "-m32 ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "-m32 ${CMAKE_CXX_FLAGS}")
set(WS_LINK_FLAGS "-m32 ${WS_LINK_FLAGS}")
endif()
message(STATUS "Building for Mac OS X/OS X/macOS ${CMAKE_OSX_DEPLOYMENT_TARGET}")
else()
message(FATAL_ERROR "CMAKE_OSX_DEPLOYMENT_TARGET only applies when building for macOS")
endif()
endif()
if(CMAKE_VERSION VERSION_LESS "3.1")
# Many modern compilers use c99 by default, but for older ones
# (like GCC 4.4.7), -std=gnu99 is required to avoid errors about
# use constructs like "for (int i = 0; i < n; i++) ;"
#
# Older versions of IBM XL C may require -qlanglvl=extc99.
# With V7.0, the "xlc" command defaults to C89; with 10.1,
# it defaults to C99 (both with IBM syntax extensions).
#
# HP's manual for HP C/HP-UX B.11.11.04 (the tenth
# edition of the manual), for PA-RISC, "documents
# new HP C features that support C99 industry standards".
# The manual for Version A.06.25 for Itanium mentions an
# -AC99 flag to support C99, but says it's the default;
# some older versions might require -AC99.
#
# As of Sun Studio 8, the compiler appears to default
# to supporting some C99 language features, but not
# C99 library differences from C89; -xc99 will give
# you both. The earlier Sun Forte Developer 6 update 2
# might or might not support thosee C99 language features
# by default, and doesn't speak of library differences;
# if it doesn't support the language features by default,
# -xc99 will support them.
#
if(CMAKE_C_COMPILER_ID MATCHES "GNU")
set(CMAKE_C_FLAGS "-std=gnu99 ${CMAKE_C_FLAGS}")
endif()
else()
#
# Current versions of CMake do not support options to
# request C99 for XL C, HP C, or Oracle C. (They may
# not be necessary for current versions.)
#
set(CMAKE_C_STANDARD 99)
endif()
if(CMAKE_C_COMPILER_ID MATCHES "Clang")
set(WIRESHARK_COMMON_FLAGS ${WIRESHARK_COMMON_FLAGS}
# avoid "argument unused during compilation" warnings
# (for example, when getting the -gsplit-dwarf option or
# when combining -fwrapv with -fno-strict-overflow)
-Qunused-arguments
)
else()
set(WIRESHARK_COMMON_FLAGS ${WIRESHARK_COMMON_FLAGS}
-fexcess-precision=fast
)
endif()
set(COMMON_WARN_FLAGS
# The following are for C and C++
# -O<X> and -g get set by the CMAKE_BUILD_TYPE
-Wall
-Wextra
-Wendif-labels
-Wpointer-arith
-Wformat-security
-fwrapv
-fno-strict-overflow
-Wvla
-Waddress
-Wattributes
-Wdiv-by-zero
-Wignored-qualifiers
-Wpragmas
-Wno-overlength-strings
-Wno-long-long
-Wheader-guard
)
#
# Code that may be worth looking into (coding practices)
#
if((NOT ENABLE_ASAN) AND (NOT ENABLE_TSAN) AND (NOT ENABLE_UBSAN) AND (NOT DISABLE_FRAME_LARGER_THAN_WARNING))
#
# Only do this if none of ASan, TSan, and UBSan are
# enabled; the instrumentation they add increases
# the stack usage - we only care about stack
# usage in normal operation.
#
set(COMMON_WARN_FLAGS ${COMMON_WARN_FLAGS}
-Wframe-larger-than=16384
)
endif()
set(C_WARN_FLAGS
# The following are C only, not C++
-Wc++-compat
-Wunused-const-variable
#
# XXX - some versions of GCC, including the one in at
# least some Xcode versions that come with Mac OS X
# 10.5, complain about variables in function and
# function pointer *declarations* shadowing other
# variables. The autoconf script checks for that; we
# don't.
-Wshadow
-Wno-pointer-sign
-Wold-style-definition
-Wstrict-prototypes
#
# Some versions of GCC, such as 4.3.2 and 4.4.5,
# generate logical-op warnings when strchr() is given a
# constant string. The autoconf script checks for that;
# we don't.
#
-Wlogical-op
-Wjump-misses-init
#
# The Qt headers generate a ton of shortening warnings
# on 64-bit systems, so we only enable this for C for
# now.
#
-Wshorten-64-to-32
#
# Implicit function declarations are an error in C++ and most
# likely a programming error in C. Turn -Wimplicit-int and
# -Wimplicit-function-declaration into an error by default.
#
-Werror=implicit
#
# The Qt headers in version 5.10 introduced a lot of
# "Possible misuse of comma operator here" warnings.
#
-Wcomma
)
set(CXX_WARN_FLAGS
)
find_package(Qt5Core) # Needed to check for Qt version
if (Qt5Core_VERSION VERSION_GREATER 5.8)
# The Qt headers in version 5.8 and older generate a ton of shortening
# errors on 64-bit systems so only enable this for version 5.9 and greater.
set(CXX_WARN_FLAGS ${CXX_WARN_FLAGS}
-Wshorten-64-to-32
)
endif()
if (Qt5Core_VERSION VERSION_LESS 5.10)
# The Qt headers in version 5.10 introduced a lot of
# "Possible misuse of comma operator here" warnings.
set(CXX_WARN_FLAGS ${CXX_WARN_FLAGS}
-Wcomma
)
endif()
#
# These are not enabled by default, because the warnings they
# produce are very hard or impossible to eliminate.
#
set(COMMON_EXTRA_WARN_FLAGS
# The following are for C and C++
-Wpedantic
#
# As we use variadic macros, we don't want warnings
# about them, even with -Wpedantic.
#
-Wno-variadic-macros
#
# Various code blocks this one.
#
-Woverflow
-fstrict-overflow -Wstrict-overflow=4
#
# Due to various places where APIs we don't control
# require us to cast away constness, we can probably
# never enable this one with -Werror.
#
-Wcast-qual
#
# Some generated ASN.1 dissectors block this one;
# multiple function declarations for the same
# function are being generated.
#
-Wredundant-decls
#
# Some loops are safe, but it's hard to convince the
# compiler of that.
#
-Wunsafe-loop-optimizations
#
# All the registration functions block these for now.
#
-Wmissing-prototypes
-Wmissing-declarations
#
# A bunch of "that might not work on SPARC" code blocks
# this one for now; some of it is code that *will* work
# on SPARC, such as casts of "struct sockaddr *" to
# "struct sockaddr_in *", which are required by some
# APIs such as getifaddrs().
#
-Wcast-align
#
# Works only with Clang
#
-Wunreachable-code
#
# Works only with Clang but generates a lot of warnings
# (about glib library not using Doxygen)
#
-Wdocumentation
#
# Works only with GCC 7
#
-Wduplicated-branches
#
# No longer supported by El Capitan clang on C++
# XXX - is this one of those where CMake's check
# doesn't fail, so it won't reject this?
#
-fno-delete-null-pointer-checks
)
set(C_EXTRA_WARN_FLAGS
# The following are C only, not C++
#
# Due to various places where APIs we don't control
# require us to cast away constness, we can probably
# never enable this one with -Werror.
#
-Wbad-function-cast
)
set(CXX_EXTRA_WARN_FLAGS
)
if(ENABLE_EXTRA_COMPILER_WARNINGS) # This overrides -Werror
set(COMMON_WARN_FLAGS ${COMMON_WARN_FLAGS} ${COMMON_EXTRA_WARN_FLAGS})
set(C_WARN_FLAGS ${C_WARN_FLAGS} ${C_EXTRA_WARN_FLAGS})
set(CXX_WARN_FLAGS ${CXX_WARN_FLAGS} ${CXX_EXTRA_WARN_FLAGS})
endif()
add_definitions(
-DG_DISABLE_DEPRECATED
-DG_DISABLE_SINGLE_INCLUDES
)
set(WIRESHARK_LD_FLAGS
-Wl,--as-needed
# -flto
# -fwhopr
# -fwhole-program
)
# CMAKE_POSITION_INDEPENDENT_CODE is only supported starting with CMake
# 2.8.9. Do not add -pie automatically for older versions.
#
# XXX - are there other compilers that don't support -pie? It's
# not as if the only platforms we support are Windows and Linux....
#
if(NOT CMAKE_VERSION VERSION_LESS "2.8.9")
set(WIRESHARK_LD_FLAGS ${WIRESHARK_LD_FLAGS}
-pie
)
endif()
endif() # ! MSVC
set( C_FLAG_TESTS ${WIRESHARK_COMMON_FLAGS} ${WIRESHARK_C_ONLY_FLAGS} )
set( CXX_FLAG_TESTS ${WIRESHARK_COMMON_FLAGS} ${WIRESHARK_CXX_ONLY_FLAGS} )
set( C_WARN_TESTS ${COMMON_WARN_FLAGS} ${C_WARN_FLAGS} )
set( CXX_WARN_TESTS ${COMMON_WARN_FLAGS} ${CXX_WARN_FLAGS} )
# Counterhack to work around some cache magic in CHECK_C_SOURCE_COMPILES
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
if(ENABLE_STATIC)
set(BUILD_SHARED_LIBS 0)
else()
set(BUILD_SHARED_LIBS 1)
endif()
# Sigh: Have to use THIS_FLAG instead of ${F} for some reason
foreach(THIS_FLAG ${C_FLAG_TESTS})
string( REGEX REPLACE "[^a-zA-Z0-9_]+" "_" F ${THIS_FLAG} )
set(${F} ${THIS_FLAG})
set(V C_${F}_VALID)
message(STATUS "Checking for c-compiler flag: ${THIS_FLAG}")
check_c_compiler_flag("${ADDED_CMAKE_C_FLAGS} ${${F}}" ${V})
if (${${V}})
set(ADDED_CMAKE_C_FLAGS "${ADDED_CMAKE_C_FLAGS} ${${F}}")
endif()
endforeach()
set(CMAKE_C_FLAGS "${ADDED_CMAKE_C_FLAGS} ${CMAKE_C_FLAGS}")
foreach(THIS_FLAG ${CXX_FLAG_TESTS})
string( REGEX REPLACE "[^a-zA-Z0-9_]+" "_" F ${THIS_FLAG} )
set(${F} ${THIS_FLAG})
set(V CXX_${F}_VALID)
message(STATUS "Checking for c++-compiler flag: ${THIS_FLAG}")
check_cxx_compiler_flag("${ADDED_CMAKE_CXX_FLAGS} ${${F}}" ${V})
if (${${V}})
set(ADDED_CMAKE_CXX_FLAGS "${ADDED_CMAKE_CXX_FLAGS} ${${F}}")
endif()
endforeach()
set(CMAKE_CXX_FLAGS "${ADDED_CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS}")
foreach(THIS_FLAG ${C_WARN_TESTS})
string( REGEX REPLACE "[^a-zA-Z0-9_]+" "_" F ${THIS_FLAG} )
set(${F} ${THIS_FLAG})
set(V C_${F}_VALID)
message(STATUS "Checking for c-compiler flag: ${THIS_FLAG}")
check_c_compiler_flag("${C_FLAG_TESTS} ${${F}}" ${V})
if (${${V}})
set(ADDED_WARN_C_FLAGS "${ADDED_WARN_C_FLAGS} ${${F}}")
endif()
endforeach()
set(CMAKE_C_FLAGS "${ADDED_WARN_C_FLAGS} ${CMAKE_C_FLAGS}")
foreach(THIS_FLAG ${CXX_WARN_TESTS})
string( REGEX REPLACE "[^a-zA-Z0-9_]+" "_" F ${THIS_FLAG} )
set(${F} ${THIS_FLAG})
set(V CXX_${F}_VALID)
message(STATUS "Checking for c++-compiler flag: ${THIS_FLAG}")
check_cxx_compiler_flag("${CXX_FLAG_TESTS} ${${F}}" ${V})
if (${${V}})
set(ADDED_WARN_CXX_FLAGS "${ADDED_WARN_CXX_FLAGS} ${${F}}")
endif()
endforeach()
set(CMAKE_CXX_FLAGS "${ADDED_WARN_CXX_FLAGS} ${CMAKE_CXX_FLAGS}")
include(CMakePushCheckState)
if(ENABLE_ASAN)
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES "-fsanitize=address")
check_c_compiler_flag(-fsanitize=address C__fsanitize_address_VALID)
check_cxx_compiler_flag(-fsanitize=address CXX__fsanitize_address_VALID)
cmake_pop_check_state()
if(NOT C__fsanitize_address_VALID OR NOT CXX__fsanitize_address_VALID)
message(FATAL_ERROR "ENABLE_ASAN was requested, but not supported!")
endif()
set(CMAKE_C_FLAGS "-fsanitize=address ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "-fsanitize=address ${CMAKE_CXX_FLAGS}")
# Disable ASAN for build-time tools, e.g. lemon
check_c_compiler_flag(-fno-sanitize=all C__fno_sanitize_all_VALID)
if(C__fno_sanitize_all_VALID)
set(NO_SANITIZE_CFLAGS "-fno-sanitize=all")
set(NO_SANITIZE_LDFLAGS "-fno-sanitize=all")
endif()
endif()
if(ENABLE_TSAN)
# Available since Clang >= 3.2 and GCC >= 4.8
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES "-fsanitize=thread")
check_c_compiler_flag(-fsanitize=thread C__fsanitize_thread_VALID)
check_cxx_compiler_flag(-fsanitize=thread CXX__fsanitize_thread_VALID)
cmake_pop_check_state()
if(NOT C__fsanitize_thread_VALID OR NOT CXX__fsanitize_thread_VALID)
message(FATAL_ERROR "ENABLE_TSAN was requested, but not supported!")
endif()
set(CMAKE_C_FLAGS "-fsanitize=thread ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "-fsanitize=thread ${CMAKE_CXX_FLAGS}")
set(WS_LINK_FLAGS "-fsanitize=thread ${WS_LINK_FLAGS}")
endif()
if(ENABLE_UBSAN)
# Available since Clang >= 3.3 and GCC >= 4.9
cmake_push_check_state()
set(CMAKE_REQUIRED_LIBRARIES "-fsanitize=undefined")
check_c_compiler_flag(-fsanitize=undefined C__fsanitize_undefined_VALID)
check_cxx_compiler_flag(-fsanitize=undefined CXX__fsanitize_undefined_VALID)
cmake_pop_check_state()
if(NOT C__fsanitize_undefined_VALID OR NOT CXX__fsanitize_undefined_VALID)
message(FATAL_ERROR "ENABLE_UBSAN was requested, but not supported!")
endif()
set(CMAKE_C_FLAGS "-fsanitize=undefined ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "-fsanitize=undefined ${CMAKE_CXX_FLAGS}")
endif()
set(WERROR_COMMON_FLAGS "")
set(NO_ERROR_DEPRECATED_DECLARATIONS_COMPILE_FLAGS "")
if(NOT DISABLE_WERROR AND NOT ENABLE_EXTRA_COMPILER_WARNINGS)
if(CMAKE_C_COMPILER_ID MATCHES "MSVC")
set(WERROR_COMMON_FLAGS "/WX")
else()
check_c_compiler_flag(-Werror WERROR)
if (WERROR)
set(WERROR_COMMON_FLAGS "-Werror")
set(NO_ERROR_DEPRECATED_DECLARATIONS_COMPILE_FLAGS "-Wno-error=deprecated-declarations")
endif()
endif()
endif()
#
# Try to have the compiler default to hiding symbols, so that only
# symbols explicitly exported with WS_DLL_PUBLIC will be visible
# outside (shared) libraries; that way, more UN*X builds will catch
# failures to export symbols, rather than having that fail only on
# Windows.
#
# We don't need that with MSVC, as that's the default.
#
if( NOT CMAKE_C_COMPILER_ID MATCHES "MSVC")
#
# Try the GCC-and-compatible -fvisibility-hidden first.
#
check_c_compiler_flag(-fvisibility=hidden FVHIDDEN)
if(FVHIDDEN)
set(CMAKE_C_FLAGS "-fvisibility=hidden ${CMAKE_C_FLAGS}")
else()
#
# OK, try the Sun^WOracle C -xldscope=hidden
#
check_c_compiler_flag(-xldscope=hidden XLDSCOPEHIDDEN)
if(XLDSCOPEHIDDEN)
set(CMAKE_C_FLAGS "-xldscope=hidden ${CMAKE_C_FLAGS}")
else()
#
# Anything else?
# If there is anything else, we might want to
# make a list of options to try, and try them
# in a loop.
#
message(WARNING "Hiding shared library symbols is not supported by the compiler."
" All shared library symbols will be exported.")
endif()
endif()
endif()
include(CheckCLinkerFlag)
set(_C 0)
# Sigh: Have to use THIS_FLAG instead of ${F} for some reason
foreach(THIS_FLAG ${WIRESHARK_LD_FLAGS})
set(F WS_LD_FLAG_${_C})
set(${F} ${THIS_FLAG})
set(V WS_LD_FLAG_VALID${_C})
check_c_linker_flag(${${F}} ${V})
if (${${V}})
set(WS_LINK_FLAGS "${WS_LINK_FLAGS} ${${F}}")
endif()
math(EXPR _C "${_C} + 1")
endforeach()
if(APPLE AND EXISTS /usr/local/opt/gettext)
# GLib on macOS requires libintl. Homebrew installs gettext (and
# libintl) in /usr/local/opt/gettext
include_directories(/usr/local/opt/gettext/include)
link_directories(/usr/local/opt/gettext/lib)
endif()
# The packagelist is doing some magic: If we add XXX to the packagelist, we
# - may optionally set XXX_OPTIONS to pass to the find_package command
# - will call FindXXX.cmake or find_package
# - return found libraries in XXX_LIBRARIES
# - return found include in XXX_INCLUDE_DIRS
# - set HAVE_XXX
# The minimum package list
set(PACKAGELIST Git GLIB2 GMODULE2 GTHREAD2 GCRYPT LEX YACC Perl SH PythonInterp)
set(LEX_OPTIONS REQUIRED)
set(GLIB2_OPTIONS REQUIRED)
set(GLIB2_FIND_OPTIONS REQUIRED)
set(GLIB2_MIN_VERSION 2.22.0)
set(GTHREAD2_OPTIONS REQUIRED)
set(GCRYPT_OPTIONS "1.4.2" REQUIRED)
set(PythonInterp_FIND_VERSION 2)
set(Python_ADDITIONAL_VERSIONS 3)
set(YACC_OPTIONS REQUIRED)
if (NOT WIN32)
set(PACKAGELIST ${PACKAGELIST} Gettext M)
set(M_OPTIONS REQUIRED)
endif()
set(PACKAGELIST ${PACKAGELIST} LIBSSH)
set(LIBSSH_OPTIONS "0.6")
if(ENABLE_PCAP)
set(PACKAGELIST ${PACKAGELIST} PCAP)
endif()
if(ENABLE_AIRPCAP)
set(PACKAGELIST ${PACKAGELIST} AIRPCAP)
endif()
# Build the GTK-GUI?
if(BUILD_wireshark_gtk)
if(ENABLE_GTK3)
set(PACKAGELIST ${PACKAGELIST} GTK3)
else()
set(PACKAGELIST ${PACKAGELIST} GTK2)
set(GTK2_OPTIONS COMPONENTS gtk)
set(GTK2_FIND_VERSION 2.12)
set(GTK2_DEBUG false)
endif()
endif()
# Build the Qt GUI?
if(BUILD_wireshark)
if(ENABLE_QT5)
# Untested, may not work if CMAKE_PREFIX_PATH gets overwritten
# somewhere. The if WIN32 in this place is annoying as well.
if( WIN32 )
set( QT5_BASE_PATH "$ENV{QT5_BASE_DIR}" )
set( CMAKE_PREFIX_PATH "${QT5_BASE_PATH}" )
endif()
set(PACKAGELIST ${PACKAGELIST}
Qt5Core
Qt5LinguistTools
Qt5Multimedia
Qt5PrintSupport
Qt5Svg
Qt5Widgets
)
set(Qt5Core_OPTIONS REQUIRED)
set(Qt5LinguistTools_OPTIONS REQUIRED)
set(Qt5Multimedia_OPTIONS REQUIRED)
set(Qt5PrintSupport_OPTIONS REQUIRED)
set(Qt5Svg_OPTIONS REQUIRED)
set(Qt5Widgets_OPTIONS REQUIRED)
if (APPLE)
set(PACKAGELIST ${PACKAGELIST} Qt5MacExtras)
set(Qt5MacExtras_OPTIONS REQUIRED)
endif()
if( WIN32 )
set(PACKAGELIST ${PACKAGELIST} Qt5WinExtras)
set(Qt5WinExtras_OPTIONS REQUIRED)
endif()
set(QT_VERSION 5)
else()
set(PACKAGELIST ${PACKAGELIST} Qt4)
set(Qt4_OPTIONS 4.8 REQUIRED QtCore QtGui)
set(QT_VERSION 4)
endif()
endif()
# SMI SNMP
if(ENABLE_SMI)
set(PACKAGELIST ${PACKAGELIST} SMI)
endif()
# GNU SSL/TLS support
if(ENABLE_GNUTLS)
set(PACKAGELIST ${PACKAGELIST} GNUTLS)
# Minimum version needed.
set(GNUTLS_OPTIONS "2.12.0")
endif()
# Kerberos
if(ENABLE_KERBEROS)
set(PACKAGELIST ${PACKAGELIST} KERBEROS)
endif()
# Portable audio (GTK+ only)
if(ENABLE_PORTAUDIO AND BUILD_wireshark_gtk)
set(PACKAGELIST ${PACKAGELIST} PORTAUDIO)
endif()
# C Asynchronous resolver
if(ENABLE_CARES)
set(PACKAGELIST ${PACKAGELIST} CARES)
# Minimum version needed.
set(CARES_OPTIONS "1.5.0")
endif()
# Zlib compression
if(ENABLE_ZLIB)
if (WIN32)
# On Windows we build our own version of zlib, so add the paths
set(ZLIB_SRC_DIR "${_PROJECT_LIB_DIR}/zlib-1.2.11-ws")
set(SKIP_INSTALL_ALL True) # We copy the DLL ourselves.
add_subdirectory("${ZLIB_SRC_DIR}" "${CMAKE_BINARY_DIR}/zlib")
unset(SKIP_INSTALL_ALL)
set(ZLIB_INCLUDE_DIR "${ZLIB_SRC_DIR}" "${CMAKE_BINARY_DIR}/zlib")
set(ZLIB_LIBRARY zlib)
set(ZLIB_DLL "zlib1.dll")
set_target_properties(zlib PROPERTIES FOLDER "Libs/zlib")
# Annoyingly zlib also builds some other stuff we aren't interested in
set_target_properties(zlibstatic PROPERTIES FOLDER "Libs/zlib")
endif()
set(PACKAGELIST ${PACKAGELIST} ZLIB)
endif()
# LZ4 compression
if(ENABLE_LZ4)
set(PACKAGELIST ${PACKAGELIST} LZ4)
endif()
# Snappy compression
if(ENABLE_SNAPPY)
set(PACKAGELIST ${PACKAGELIST} SNAPPY)
endif()
# Enhanced HTTP/2 dissection
if(ENABLE_NGHTTP2)
set(PACKAGELIST ${PACKAGELIST} NGHTTP2)
endif()
# Embedded Lua interpreter
if(ENABLE_LUA)
set(PACKAGELIST ${PACKAGELIST} LUA)