1 include(AddLLVMDefinitions)
3 if( CMAKE_COMPILER_IS_GNUCXX )
4 set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
5 elseif( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
6 set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
9 # Run-time build mode; It is used for unittests.
11 # Expect "$(Configuration)", "$(OutDir)", etc.
12 # It is expanded by msbuild or similar.
13 set(RUNTIME_BUILD_MODE "${CMAKE_CFG_INTDIR}")
14 elseif(NOT CMAKE_BUILD_TYPE STREQUAL "")
15 # Expect "Release" "Debug", etc.
16 # Or unittests could not run.
17 set(RUNTIME_BUILD_MODE ${CMAKE_BUILD_TYPE})
20 set(RUNTIME_BUILD_MODE "${CMAKE_CFG_INTDIR}")
23 set(LIT_ARGS_DEFAULT "-sv")
25 set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
27 set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}"
28 CACHE STRING "Default options for lit")
30 if( LLVM_ENABLE_ASSERTIONS )
31 # MSVC doesn't like _DEBUG on release builds. See PR 4379.
33 add_definitions( -D_DEBUG )
35 # On Release builds cmake automatically defines NDEBUG, so we
36 # explicitly undefine it:
37 if( uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
38 add_definitions( -UNDEBUG )
41 if( NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
42 if( NOT MSVC_IDE AND NOT XCODE )
43 add_definitions( -DNDEBUG )
56 # This is effective only on Win32 hosts to use gnuwin32 tools.
57 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
59 set(LTDL_SHLIB_EXT ".dll")
61 # Maximum path length is 160 for non-unicode paths
68 set(LTDL_SHLIB_EXT ".dylib")
70 set(LTDL_SHLIB_EXT ".so")
73 # FIXME: Maximum path length is currently set to 'safe' fixed value
76 MESSAGE(SEND_ERROR "Unable to determine platform")
82 # Xcode has -mdynamic-no-pic on by default, which overrides -fPIC. I don't
83 # know how to disable this, so just force ENABLE_PIC off for now.
84 message(WARNING "-fPIC not supported with Xcode.")
86 # On Windows all code is PIC. MinGW warns if -fPIC is used.
88 include(CheckCXXCompilerFlag)
89 check_cxx_compiler_flag("-fPIC" SUPPORTS_FPIC_FLAG)
90 if( SUPPORTS_FPIC_FLAG )
91 message(STATUS "Building with -fPIC")
92 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
93 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
94 else( SUPPORTS_FPIC_FLAG )
95 message(WARNING "-fPIC not supported.")
100 if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
101 # TODO: support other platforms and toolchains.
102 option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
103 if( LLVM_BUILD_32_BITS )
104 message(STATUS "Building 32 bits executables and libraries.")
105 add_llvm_definitions( -m32 )
106 list(APPEND CMAKE_EXE_LINKER_FLAGS -m32)
107 list(APPEND CMAKE_SHARED_LINKER_FLAGS -m32)
108 endif( LLVM_BUILD_32_BITS )
109 endif( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
111 if( MSVC_IDE AND ( MSVC90 OR MSVC10 ) )
112 # Only Visual Studio 2008 and 2010 officially supports /MP.
113 # Visual Studio 2005 do support it but it's experimental there.
114 set(LLVM_COMPILER_JOBS "0" CACHE STRING
115 "Number of parallel compiler jobs. 0 means use all processors. Default is 0.")
116 if( NOT LLVM_COMPILER_JOBS STREQUAL "1" )
117 if( LLVM_COMPILER_JOBS STREQUAL "0" )
118 add_llvm_definitions( /MP )
122 "Due to a bug in CMake only 0 and 1 is supported for "
123 "LLVM_COMPILER_JOBS when generating for Visual Studio 2010")
125 message(STATUS "Number of parallel compiler jobs set to " ${LLVM_COMPILER_JOBS})
126 add_llvm_definitions( /MP${LLVM_COMPILER_JOBS} )
130 message(STATUS "Parallel compilation disabled")
135 include(ChooseMSVCCRT)
137 # Add definitions that make MSVC much less annoying.
138 add_llvm_definitions(
139 # For some reason MS wants to deprecate a bunch of standard functions...
140 -D_CRT_SECURE_NO_DEPRECATE
141 -D_CRT_SECURE_NO_WARNINGS
142 -D_CRT_NONSTDC_NO_DEPRECATE
143 -D_CRT_NONSTDC_NO_WARNINGS
144 -D_SCL_SECURE_NO_DEPRECATE
145 -D_SCL_SECURE_NO_WARNINGS
147 -wd4146 # Suppress 'unary minus operator applied to unsigned type, result still unsigned'
148 -wd4180 # Suppress 'qualifier applied to function type has no meaning; ignored'
149 -wd4224 # Suppress 'nonstandard extension used : formal parameter 'identifier' was previously defined as a type'
150 -wd4244 # Suppress ''argument' : conversion from 'type1' to 'type2', possible loss of data'
151 -wd4267 # Suppress ''var' : conversion from 'size_t' to 'type', possible loss of data'
152 -wd4275 # Suppress 'An exported class was derived from a class that was not exported.'
153 -wd4291 # Suppress ''declaration' : no matching operator delete found; memory will not be freed if initialization throws an exception'
154 -wd4345 # Suppress 'behavior change: an object of POD type constructed with an initializer of the form () will be default-initialized'
155 -wd4351 # Suppress 'new behavior: elements of array 'array' will be default initialized'
156 -wd4355 # Suppress ''this' : used in base member initializer list'
157 -wd4503 # Suppress ''identifier' : decorated name length exceeded, name was truncated'
158 -wd4551 # Suppress 'function call missing argument list'
159 -wd4624 # Suppress ''derived class' : destructor could not be generated because a base class destructor is inaccessible'
160 -wd4715 # Suppress ''function' : not all control paths return a value'
161 -wd4800 # Suppress ''type' : forcing value to bool 'true' or 'false' (performance warning)'
162 -wd4065 # Suppress 'switch statement contains 'default' but no 'case' labels'
163 -wd4181 # Suppress 'qualifier applied to reference type; ignored'
164 -w14062 # Promote "enumerator in switch of enum is not handled" to level 1 warning.
168 if (LLVM_ENABLE_WARNINGS)
169 add_llvm_definitions( /W4 /Wall )
170 if (LLVM_ENABLE_PEDANTIC)
171 # No MSVC equivalent available
172 endif (LLVM_ENABLE_PEDANTIC)
173 endif (LLVM_ENABLE_WARNINGS)
174 if (LLVM_ENABLE_WERROR)
175 add_llvm_definitions( /WX )
176 endif (LLVM_ENABLE_WERROR)
177 elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
178 if (LLVM_ENABLE_WARNINGS)
179 add_llvm_definitions( -Wall -W -Wno-unused-parameter -Wwrite-strings )
180 if (LLVM_ENABLE_PEDANTIC)
181 add_llvm_definitions( -pedantic -Wno-long-long )
182 endif (LLVM_ENABLE_PEDANTIC)
183 endif (LLVM_ENABLE_WARNINGS)
184 if (LLVM_ENABLE_WERROR)
185 add_llvm_definitions( -Werror )
186 endif (LLVM_ENABLE_WERROR)
189 add_llvm_definitions( -D__STDC_LIMIT_MACROS )
190 add_llvm_definitions( -D__STDC_CONSTANT_MACROS )
192 option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)