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# The CMakeLists.txt shipped with cryptopp pollutes our option list and installation list,
# so we made our own one. This is basically a trimmed down version of the shipped CMakeLists.txt
# The differences are:
# - removed support for legacy CMake versions
# - removed support for 32-bit
# - removed -march=native flag
# - removed rdrand module.asm as a workaround for an issue (see below)
# - added prefix "CRYPTOPP_" to all option names
# - disabled testing
# - disabled installation
# - disabled documentation
# - configured to build a static library only
include(TestBigEndian)
include(CheckCXXCompilerFlag)
#============================================================================
# Settable options
#============================================================================
option(CRYPTOPP_DISABLE_ASM "Disable ASM" OFF)
option(CRYPTOPP_DISABLE_SSSE3 "Disable SSSE3" OFF)
option(CRYPTOPP_DISABLE_AESNI "Disable AES-NI" OFF)
option(CRYPTOPP_DISABLE_CXXFLAGS_OPTIMIZATIONS "Disable CXXFLAGS optimizations" OFF)
#============================================================================
# Internal compiler options
#============================================================================
# Only set when cross-compiling, http://www.vtk.org/Wiki/CMake_Cross_Compiling
if (NOT (CMAKE_SYSTEM_VERSION AND CMAKE_SYSTEM_PROCESSOR))
set(CRYPTOPP_CROSS_COMPILE 1)
else()
set(CRYPTOPP_CROSS_COMPILE 0)
endif()
# Don't use RPATH's. The resulting binary could fail a security audit.
if (NOT CMAKE_VERSION VERSION_LESS 2.8.12)
set(CMAKE_MACOSX_RPATH 0)
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "Intel")
add_definitions(-wd68 -wd186 -wd279 -wd327 -wd161 -wd3180)
endif()
# Endianness
TEST_BIG_ENDIAN(IS_BIG_ENDIAN)
if(IS_BIG_ENDIAN)
add_definitions(-DIS_BIG_ENDIAN)
endif()
if(CRYPTOPP_DISABLE_ASM)
add_definitions(-DCRYPTOPP_DISABLE_ASM)
endif()
if(CRYPTOPP_DISABLE_SSSE3)
add_definitions(-DCRYPTOPP_DISABLE_SSSE3)
endif()
if(CRYPTOPP_DISABLE_AESNI)
add_definitions(-DCRYPTOPP_DISABLE_AESNI)
endif()
# We need the output 'uname -s' for Unix and Linux system detection
if (NOT CRYPTOPP_CROSS_COMPILE)
set (UNAME_CMD "uname")
set (UNAME_ARG "-s")
execute_process(COMMAND ${UNAME_CMD} ${UNAME_ARG}
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
RESULT_VARIABLE UNAME_RESULT
OUTPUT_VARIABLE UNAME_SYSTEM)
string(REGEX REPLACE "\n$" "" UNAME_SYSTEM "${UNAME_SYSTEM}")
endif()
# We need the output 'uname -m' for Unix and Linux platform detection
if (NOT CRYPTOPP_CROSS_COMPILE)
set (UNAME_CMD "uname")
set (UNAME_ARG "-m")
execute_process(COMMAND ${UNAME_CMD} ${UNAME_ARG}
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
RESULT_VARIABLE UNAME_RESULT
OUTPUT_VARIABLE UNAME_MACHINE)
string(REGEX REPLACE "\n$" "" UNAME_MACHINE "${UNAME_MACHINE}")
endif()
if(WINDOWS_STORE OR WINDOWS_PHONE)
if("${CMAKE_SYSTEM_VERSION}" MATCHES "10\\.0.*")
SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D\"_WIN32_WINNT=0x0A00\"" )
endif()
SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /FI\"winapifamily.h\"" )
endif()
# Enable PIC for all targets except Windows and 32-bit x86.
# Avoid on 32-bit x86 due to register pressures.
if ((NOT CRYPTOPP_CROSS_COMPILE) AND (NOT (WINDOWS OR WINDOWS_STORE OR WINDOWS_PHONE)))
# Use Regex; match i386, i486, i586 and i686
if (NOT (${UNAME_MACHINE} MATCHES "i.86"))
SET(CMAKE_POSITION_INDEPENDENT_CODE 1)
endif()
endif()
# Link is driven through the compiler, but CXXFLAGS are not used. Also see
# http://public.kitware.com/pipermail/cmake/2003-June/003967.html
if (NOT (WINDOWS OR WINDOWS_STORE OR WINDOWS_PHONE))
SET(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_FLAGS}")
endif()
#============================================================================
# Sources & headers
#============================================================================
# Library headers
file(GLOB cryptopp_HEADERS cryptopp/*.h)
# Library sources. You can use the GNUmakefile to generate the list: `make sources`.
file(GLOB cryptopp_SOURCES cryptopp/*.cpp)
list(REMOVE_ITEM cryptopp_SOURCES
# These are removed in the original CMakeLists.txt
${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/pch.cpp
${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/simple.cpp
${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/winpipes.cpp
${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/cryptlib_bds.cpp
${cryptopp_SOURCES_TEST}
)
if(MINGW OR WIN32)
list(APPEND cryptopp_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/winpipes.cpp)
endif()
if(MSVC AND NOT CRYPTOPP_DISABLE_ASM)
if(${CMAKE_GENERATOR} MATCHES ".*ARM")
message(STATUS "Disabling ASM because ARM is specified as target platform.")
else()
# Note that we removed rdrand.asm. This is a workaround for the issue that rdrand.asm cannnot compiled properly
# on MSVC. Because there is also a rdrand.S file in the submodule, CMake will specify the target path for
# rdrand.asm as "/crytopp.dir/{Debug|Release}/cryptopp/rdrand.asm.obj". The additional target folder "cryptopp"
# is specified because the file rdrand.asm is in the source folder "cryptopp". But MSVC assembler can't build
# target file to an non-existing folder("cryptopp").
list(APPEND cryptopp_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/x64dll.asm)
list(APPEND cryptopp_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/x64masm.asm)
# list(APPEND cryptopp_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/rdrand.asm)
set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/x64dll.asm PROPERTIES COMPILE_FLAGS "/D_M_X64")
set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/x64masm.asm PROPERTIES COMPILE_FLAGS "/D_M_X64")
# set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/cryptopp/rdrand.asm PROPERTIES COMPILE_FLAGS "/D_M_X64")
enable_language(ASM_MASM)
endif()
endif()
#============================================================================
# Compile targets
#============================================================================
add_library(cryptopp STATIC ${cryptopp_SOURCES})
#============================================================================
# Third-party libraries
#============================================================================
if(WIN32)
target_link_libraries(cryptopp ws2_32)
endif()
find_package(Threads)
target_link_libraries(cryptopp ${CMAKE_THREAD_LIBS_INIT})
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