include(AddFileDependencies)
+function(llvm_replace_compiler_option var old new)
+ # Replaces a compiler option or switch `old' in `var' by `new'.
+ # If `old' is not in `var', appends `new' to `var'.
+ # Example: llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
+ # If the option already is on the variable, don't add it:
+ if( "${${var}}" MATCHES "(^| )${new}($| )" )
+ set(n "")
+ else()
+ set(n "${new}")
+ endif()
+ if( "${${var}}" MATCHES "(^| )${old}($| )" )
+ string( REGEX REPLACE "(^| )${old}($| )" " ${n} " ${var} "${${var}}" )
+ else()
+ set( ${var} "${${var}} ${n}" )
+ endif()
+ set( ${var} "${${var}}" PARENT_SCOPE )
+endfunction(llvm_replace_compiler_option)
macro(add_td_sources srcs)
file(GLOB tds *.td)
macro(add_header_files srcs)
- file(GLOB hds *.h)
+ file(GLOB hds *.h *.def)
if( hds )
set_source_files_properties(${hds} PROPERTIES HEADER_FILE_ONLY ON)
list(APPEND ${srcs} ${hds})
# Set common compiler options:
if( NOT LLVM_REQUIRES_EH )
- if( CMAKE_COMPILER_IS_GNUCXX )
+ if( LLVM_COMPILER_IS_GCC_COMPATIBLE )
add_definitions( -fno-exceptions )
elseif( MSVC )
- string( REGEX REPLACE "[ ^]/EHsc ?" " /EHs-c- " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" )
+ llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/EHsc" "/EHs-c-")
add_definitions( /D_HAS_EXCEPTIONS=0 )
endif()
endif()
if( NOT LLVM_REQUIRES_RTTI )
- if( CMAKE_COMPILER_IS_GNUCXX )
- add_definitions( -fno-rtti )
+ if( LLVM_COMPILER_IS_GCC_COMPATIBLE )
+ llvm_replace_compiler_option(CMAKE_CXX_FLAGS "-frtti" "-fno-rtti")
elseif( MSVC )
- string( REGEX REPLACE "[ ^]/GR ?" " /GR- " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" )
+ llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/GR" "/GR-")
endif()
endif()