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      1 cmake_minimum_required (VERSION 2.8.10)
      2 
      3 project (BoringSSL)
      4 
      5 if(ANDROID)
      6   # Android-NDK CMake files reconfigure the path and so Go and Perl won't be
      7   # found. However, ninja will still find them in $PATH if we just name them.
      8   set(PERL_EXECUTABLE "perl")
      9   set(GO_EXECUTABLE "go")
     10 else()
     11   find_package(Perl REQUIRED)
     12   find_program(GO_EXECUTABLE go)
     13 endif()
     14 
     15 if (NOT GO_EXECUTABLE)
     16   message(FATAL_ERROR "Could not find Go")
     17 endif()
     18 
     19 if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     20   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror -ggdb -fvisibility=hidden")
     21   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror -ggdb -std=c++0x -fvisibility=hidden")
     22 elseif(MSVC)
     23   set(MSVC_DISABLED_WARNINGS_LIST
     24       "C4100" # 'exarg' : unreferenced formal parameter
     25       "C4127" # conditional expression is constant
     26       "C4200" # nonstandard extension used : zero-sized array in
     27               # struct/union.
     28       "C4210" # nonstandard extension used : function given file scope
     29       "C4242" # 'function' : conversion from 'int' to 'uint8_t',
     30               # possible loss of data
     31       "C4244" # 'function' : conversion from 'int' to 'uint8_t',
     32               # possible loss of data
     33       "C4245" # 'initializing' : conversion from 'long' to
     34               # 'unsigned long', signed/unsigned mismatch
     35       "C4267" # conversion from 'size_t' to 'int', possible loss of data
     36       "C4371" # layout of class may have changed from a previous version of the
     37               # compiler due to better packing of member '...'
     38       "C4388" # signed/unsigned mismatch
     39       "C4296" # '>=' : expression is always true
     40       "C4350" # behavior change: 'std::_Wrap_alloc...'
     41       "C4365" # '=' : conversion from 'size_t' to 'int',
     42               # signed/unsigned mismatch
     43       "C4389" # '!=' : signed/unsigned mismatch
     44       "C4510" # 'argument' : default constructor could not be generated
     45       "C4512" # 'argument' : assignment operator could not be generated
     46       "C4514" # 'function': unreferenced inline function has been removed
     47       "C4548" # expression before comma has no effect; expected expression with
     48               # side-effect" caused by FD_* macros.
     49       "C4610" # struct 'argument' can never be instantiated - user defined
     50               # constructor required.
     51       "C4625" # copy constructor could not be generated because a base class
     52               # copy constructor is inaccessible or deleted
     53       "C4626" # assignment operator could not be generated because a base class
     54               # assignment operator is inaccessible or deleted
     55       "C4706" # assignment within conditional expression
     56       "C4710" # 'function': function not inlined
     57       "C4711" # function 'function' selected for inline expansion
     58       "C4800" # 'int' : forcing value to bool 'true' or 'false'
     59               # (performance warning)
     60       "C4820" # 'bytes' bytes padding added after construct 'member_name'
     61       "C4996" # 'read': The POSIX name for this item is deprecated. Instead,
     62               # use the ISO C++ conformant name: _read.
     63      )
     64   string(REPLACE "C" " -wd" MSVC_DISABLED_WARNINGS_STR
     65                             ${MSVC_DISABLED_WARNINGS_LIST})
     66   set(CMAKE_C_FLAGS   "-Wall -WX ${MSVC_DISABLED_WARNINGS_STR}")
     67   set(CMAKE_CXX_FLAGS "-Wall -WX ${MSVC_DISABLED_WARNINGS_STR}")
     68   add_definitions(-D_HAS_EXCEPTIONS=0)
     69   add_definitions(-DWIN32_LEAN_AND_MEAN)
     70   add_definitions(-DNOMINMAX)
     71 endif()
     72 
     73 if((CMAKE_COMPILER_IS_GNUCXX AND CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.7.99") OR
     74    CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     75   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
     76   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wshadow")
     77 endif()
     78 
     79 if((CMAKE_COMPILER_IS_GNUCXX AND CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.8.99") OR
     80    CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     81  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -D_XOPEN_SOURCE=700")
     82 endif()
     83 
     84 add_definitions(-DBORINGSSL_IMPLEMENTATION)
     85 
     86 if (BUILD_SHARED_LIBS)
     87   add_definitions(-DBORINGSSL_SHARED_LIBRARY)
     88   # Enable position-independent code globally. This is needed because
     89   # some library targets are OBJECT libraries.
     90   set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
     91 endif()
     92 
     93 if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
     94   set(ARCH "x86_64")
     95 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
     96   set(ARCH "x86_64")
     97 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
     98   # cmake reports AMD64 on Windows, but we might be building for 32-bit.
     99   if (CMAKE_CL_64)
    100     set(ARCH "x86_64")
    101   else()
    102     set(ARCH "x86")
    103   endif()
    104 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86")
    105   set(ARCH "x86")
    106 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i386")
    107   set(ARCH "x86")
    108 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i686")
    109   set(ARCH "x86")
    110 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm")
    111   set(ARCH "arm")
    112 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "armv6")
    113   set(ARCH "arm")
    114 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "armv7-a")
    115   set(ARCH "arm")
    116 elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
    117   set(ARCH "aarch64")
    118 else()
    119   message(FATAL_ERROR "Unknown processor:" ${CMAKE_SYSTEM_PROCESSOR})
    120 endif()
    121 
    122 if (ANDROID AND ${ARCH} STREQUAL "arm")
    123   # The Android-NDK CMake files somehow fail to set the -march flag for
    124   # assembly files. Without this flag, the compiler believes that it's
    125   # building for ARMv5.
    126   set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -march=${CMAKE_SYSTEM_PROCESSOR}")
    127 endif()
    128 
    129 if (${ARCH} STREQUAL "x86" AND APPLE)
    130   # With CMake 2.8.x, ${CMAKE_SYSTEM_PROCESSOR} evalutes to i386 on OS X,
    131   # but clang defaults to 64-bit builds on OS X unless otherwise told.
    132   # Set ARCH to x86_64 so clang and CMake agree. This is fixed in CMake 3.
    133   set(ARCH "x86_64")
    134 endif()
    135 
    136 if (OPENSSL_NO_ASM)
    137   add_definitions(-DOPENSSL_NO_ASM)
    138   set(ARCH "generic")
    139 endif()
    140 
    141 add_subdirectory(crypto)
    142 add_subdirectory(ssl)
    143 add_subdirectory(ssl/test)
    144 add_subdirectory(tool)
    145 add_subdirectory(decrepit)
    146