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# Find Clang
#
# It defines the following variables
# CLANG_FOUND - True if Clang found.
# CLANG_INCLUDE_DIRS - where to find Clang include files
# CLANG_LIBS - list of clang libs
if (NOT LLVM_INCLUDE_DIRS OR NOT LLVM_LIBRARY_DIRS)
message(FATAL_ERROR "No LLVM and Clang support requires LLVM")
else (NOT LLVM_INCLUDE_DIRS OR NOT LLVM_LIBRARY_DIRS)
MACRO(FIND_AND_ADD_CLANG_LIB _libname_)
find_library(CLANG_${_libname_}_LIB ${_libname_} ${LLVM_LIBRARY_DIRS} ${CLANG_LIBRARY_DIRS})
if (CLANG_${_libname_}_LIB)
set(CLANG_LIBS ${CLANG_LIBS} ${CLANG_${_libname_}_LIB})
endif (CLANG_${_libname_}_LIB)
ENDMACRO(FIND_AND_ADD_CLANG_LIB)
# Clang shared library provides just the limited C interface, so it
# can not be used. We look for the static libraries.
FIND_AND_ADD_CLANG_LIB(clangFrontend)
FIND_AND_ADD_CLANG_LIB(clangDriver)
FIND_AND_ADD_CLANG_LIB(clangCodeGen)
FIND_AND_ADD_CLANG_LIB(clangEdit)
FIND_AND_ADD_CLANG_LIB(clangSema)
FIND_AND_ADD_CLANG_LIB(clangChecker)
FIND_AND_ADD_CLANG_LIB(clangAnalysis)
FIND_AND_ADD_CLANG_LIB(clangRewrite)
FIND_AND_ADD_CLANG_LIB(clangAST)
FIND_AND_ADD_CLANG_LIB(clangParse)
FIND_AND_ADD_CLANG_LIB(clangLex)
FIND_AND_ADD_CLANG_LIB(clangBasic)
FIND_AND_ADD_CLANG_LIB(clang)
find_path(CLANG_INCLUDE_DIRS clang/Basic/Version.h HINTS ${LLVM_INCLUDE_DIRS})
if (CLANG_LIBS AND CLANG_INCLUDE_DIRS)
MESSAGE(STATUS "Clang libs: " ${CLANG_LIBS})
set(CLANG_FOUND TRUE)
endif (CLANG_LIBS AND CLANG_INCLUDE_DIRS)
if (CLANG_FOUND)
message(STATUS "Found Clang: ${CLANG_INCLUDE_DIRS}")
else (CLANG_FOUND)
if (CLANG_FIND_REQUIRED)
message(FATAL_ERROR "Could NOT find Clang")
endif (CLANG_FIND_REQUIRED)
endif (CLANG_FOUND)
endif (NOT LLVM_INCLUDE_DIRS OR NOT LLVM_LIBRARY_DIRS)
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