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 )
39 set(LLVM_BUILD_MODE "Release")
41 set(LLVM_BUILD_MODE "Debug")
43 set(LLVM_BUILD_MODE "${LLVM_BUILD_MODE}+Asserts")
45 set(LLVM_BUILD_MODE "Release")
46 if( NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
47 if( NOT MSVC_IDE AND NOT XCODE )
48 add_definitions( -DNDEBUG )
61 # This is effective only on Win32 hosts to use gnuwin32 tools.
62 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
64 set(LTDL_SHLIB_EXT ".dll")
66 # Maximum path length is 160 for non-unicode paths
73 set(LTDL_SHLIB_EXT ".dylib")
75 set(LTDL_SHLIB_EXT ".so")
78 # FIXME: Maximum path length is currently set to 'safe' fixed value
81 MESSAGE(SEND_ERROR "Unable to determine platform")
87 # Xcode has -mdynamic-no-pic on by default, which overrides -fPIC. I don't
88 # know how to disable this, so just force ENABLE_PIC off for now.
89 message(WARNING "-fPIC not supported with Xcode.")
91 # On Windows all code is PIC. MinGW warns if -fPIC is used.
93 include(CheckCXXCompilerFlag)
94 check_cxx_compiler_flag("-fPIC" SUPPORTS_FPIC_FLAG)
95 if( SUPPORTS_FPIC_FLAG )
96 message(STATUS "Building with -fPIC")
97 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
98 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
99 else( SUPPORTS_FPIC_FLAG )
100 message(WARNING "-fPIC not supported.")
105 if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
106 # TODO: support other platforms and toolchains.
107 option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
108 if( LLVM_BUILD_32_BITS )
109 message(STATUS "Building 32 bits executables and libraries.")
110 add_llvm_definitions( -m32 )
111 list(APPEND CMAKE_EXE_LINKER_FLAGS -m32)
112 list(APPEND CMAKE_SHARED_LINKER_FLAGS -m32)
113 endif( LLVM_BUILD_32_BITS )
114 endif( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
116 if( MSVC_IDE AND ( MSVC90 OR MSVC10 ) )
117 # Only Visual Studio 2008 and 2010 officially supports /MP.
118 # Visual Studio 2005 do support it but it's experimental there.
119 set(LLVM_COMPILER_JOBS "0" CACHE STRING
120 "Number of parallel compiler jobs. 0 means use all processors. Default is 0.")
121 if( NOT LLVM_COMPILER_JOBS STREQUAL "1" )
122 if( LLVM_COMPILER_JOBS STREQUAL "0" )
123 add_llvm_definitions( /MP )
127 "Due to a bug in CMake only 0 and 1 is supported for "
128 "LLVM_COMPILER_JOBS when generating for Visual Studio 2010")
130 message(STATUS "Number of parallel compiler jobs set to " ${LLVM_COMPILER_JOBS})
131 add_llvm_definitions( /MP${LLVM_COMPILER_JOBS} )
135 message(STATUS "Parallel compilation disabled")
140 include(ChooseMSVCCRT)
142 # Add definitions that make MSVC much less annoying.
143 add_llvm_definitions(
144 # For some reason MS wants to deprecate a bunch of standard functions...
145 -D_CRT_SECURE_NO_DEPRECATE
146 -D_CRT_SECURE_NO_WARNINGS
147 -D_CRT_NONSTDC_NO_DEPRECATE
148 -D_CRT_NONSTDC_NO_WARNINGS
149 -D_SCL_SECURE_NO_DEPRECATE
150 -D_SCL_SECURE_NO_WARNINGS
152 -wd4146 # Suppress 'unary minus operator applied to unsigned type, result still unsigned'
153 -wd4180 # Suppress 'qualifier applied to function type has no meaning; ignored'
154 -wd4224 # Suppress 'nonstandard extension used : formal parameter 'identifier' was previously defined as a type'
155 -wd4244 # Suppress ''argument' : conversion from 'type1' to 'type2', possible loss of data'
156 -wd4267 # Suppress ''var' : conversion from 'size_t' to 'type', possible loss of data'
157 -wd4275 # Suppress 'An exported class was derived from a class that was not exported.'
158 -wd4291 # Suppress ''declaration' : no matching operator delete found; memory will not be freed if initialization throws an exception'
159 -wd4345 # Suppress 'behavior change: an object of POD type constructed with an initializer of the form () will be default-initialized'
160 -wd4351 # Suppress 'new behavior: elements of array 'array' will be default initialized'
161 -wd4355 # Suppress ''this' : used in base member initializer list'
162 -wd4503 # Suppress ''identifier' : decorated name length exceeded, name was truncated'
163 -wd4624 # Suppress ''derived class' : destructor could not be generated because a base class destructor is inaccessible'
164 -wd4715 # Suppress ''function' : not all control paths return a value'
165 -wd4800 # Suppress ''type' : forcing value to bool 'true' or 'false' (performance warning)'
166 -wd4065 # Suppress 'switch statement contains 'default' but no 'case' labels'
167 -wd4181 # Suppress 'qualifier applied to reference type; ignored'
168 -w14062 # Promote "enumerator in switch of enum is not handled" to level 1 warning.
172 if (LLVM_ENABLE_WARNINGS)
173 add_llvm_definitions( /W4 /Wall )
174 if (LLVM_ENABLE_PEDANTIC)
175 # No MSVC equivalent available
176 endif (LLVM_ENABLE_PEDANTIC)
177 endif (LLVM_ENABLE_WARNINGS)
178 if (LLVM_ENABLE_WERROR)
179 add_llvm_definitions( /WX )
180 endif (LLVM_ENABLE_WERROR)
181 elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
182 if (LLVM_ENABLE_WARNINGS)
183 add_llvm_definitions( -Wall -W -Wno-unused-parameter -Wwrite-strings )
184 if (LLVM_ENABLE_PEDANTIC)
185 add_llvm_definitions( -pedantic -Wno-long-long )
186 endif (LLVM_ENABLE_PEDANTIC)
187 endif (LLVM_ENABLE_WARNINGS)
188 if (LLVM_ENABLE_WERROR)
189 add_llvm_definitions( -Werror )
190 endif (LLVM_ENABLE_WERROR)
193 add_llvm_definitions( -D__STDC_LIMIT_MACROS )
194 add_llvm_definitions( -D__STDC_CONSTANT_MACROS )
196 option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)