-fvisibility-inlines-hidden is a c++ only option.

[oota-llvm.git] / cmake / modules / HandleLLVMOptions.cmake

diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index 0633ac9e3a5b158af6ee6e6f5908744c07873a4c..496e8b3f5466467565295684ea5af9b54b92b6b6 100644 (file)
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -1,5 +1,15 @@
+# This CMake module is responsible for interpreting the user defined LLVM_
+# options and executing the appropriate CMake commands to realize the users'
+# selections.
+
 include(AddLLVMDefinitions)
 
+if( CMAKE_COMPILER_IS_GNUCXX )
+  set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
+elseif( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
+  set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
+endif()
+
 # Run-time build mode; It is used for unittests.
 if(MSVC_IDE)
   # Expect "$(Configuration)", "$(OutDir)", etc.
@@ -14,13 +24,6 @@ else()
   set(RUNTIME_BUILD_MODE "${CMAKE_CFG_INTDIR}")
 endif()
 
-set(LIT_ARGS_DEFAULT "-sv")
-if (MSVC OR XCODE)
-  set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
-endif()
-set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}"
-    CACHE STRING "Default options for lit")
-
 if( LLVM_ENABLE_ASSERTIONS )
   # MSVC doesn't like _DEBUG on release builds. See PR 4379.
   if( NOT MSVC )
@@ -46,9 +49,6 @@ if(WIN32)
   else(CYGWIN)
     set(LLVM_ON_WIN32 1)
     set(LLVM_ON_UNIX 0)
-
-    # This is effective only on Win32 hosts to use gnuwin32 tools.
-    set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
   endif(CYGWIN)
   set(LTDL_SHLIB_EXT ".dll")
   set(EXEEXT ".exe")
@@ -76,7 +76,7 @@ if( LLVM_ENABLE_PIC )
     # Xcode has -mdynamic-no-pic on by default, which overrides -fPIC. I don't
     # know how to disable this, so just force ENABLE_PIC off for now.
     message(WARNING "-fPIC not supported with Xcode.")
-  elseif( WIN32 )
+  elseif( WIN32 OR CYGWIN)
     # On Windows all code is PIC. MinGW warns if -fPIC is used.
   else()
     include(CheckCXXCompilerFlag)
@@ -88,12 +88,20 @@ if( LLVM_ENABLE_PIC )
     else( SUPPORTS_FPIC_FLAG )
       message(WARNING "-fPIC not supported.")
     endif()
+
+    if( WIN32 OR CYGWIN)
+      # MinGW warns if -fvisibility-inlines-hidden is used.
+    else()
+      check_cxx_compiler_flag("-fvisibility-inlines-hidden" SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG)
+      if( SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG )
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden")
+      endif()
+     endif()
   endif()
 endif()
 
 if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
   # TODO: support other platforms and toolchains.
-  option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
   if( LLVM_BUILD_32_BITS )
     message(STATUS "Building 32 bits executables and libraries.")
     add_llvm_definitions( -m32 )
@@ -149,6 +157,7 @@ if( MSVC )
     -wd4351 # Suppress 'new behavior: elements of array 'array' will be default initialized'
     -wd4355 # Suppress ''this' : used in base member initializer list'
     -wd4503 # Suppress ''identifier' : decorated name length exceeded, name was truncated'
+    -wd4551 # Suppress 'function call missing argument list'
     -wd4624 # Suppress ''derived class' : destructor could not be generated because a base class destructor is inaccessible'
     -wd4715 # Suppress ''function' : not all control paths return a value'
     -wd4800 # Suppress ''type' : forcing value to bool 'true' or 'false' (performance warning)'
@@ -167,7 +176,7 @@ if( MSVC )
   if (LLVM_ENABLE_WERROR)
     add_llvm_definitions( /WX )
   endif (LLVM_ENABLE_WERROR)
-elseif( CMAKE_COMPILER_IS_GNUCXX )
+elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
   if (LLVM_ENABLE_WARNINGS)
     add_llvm_definitions( -Wall -W -Wno-unused-parameter -Wwrite-strings )
     if (LLVM_ENABLE_PEDANTIC)
@@ -179,7 +188,6 @@ elseif( CMAKE_COMPILER_IS_GNUCXX )
   endif (LLVM_ENABLE_WERROR)
 endif( MSVC )
 
-add_llvm_definitions( -D__STDC_LIMIT_MACROS )
 add_llvm_definitions( -D__STDC_CONSTANT_MACROS )
-
-option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)
+add_llvm_definitions( -D__STDC_FORMAT_MACROS )
+add_llvm_definitions( -D__STDC_LIMIT_MACROS )