dolphin/CMakeTests/FindLLVM.cmake

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CMake
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# This file only exists because LLVM's cmake files are broken.
# This affects both LLVM 3.4 and 3.5.
# Hopefully when they fix their cmake system we don't need this garbage.
include(CheckLibraryExists)
list(APPEND LLVM_CONFIG_EXECUTABLES "llvm-config")
list(APPEND LLVM_CONFIG_EXECUTABLES "llvm-config-3.5")
list(APPEND LLVM_CONFIG_EXECUTABLES "llvm-config-3.4")
foreach(LLVM_CONFIG_NAME ${LLVM_CONFIG_EXECUTABLES})
find_program(LLVM_CONFIG_EXE NAMES ${LLVM_CONFIG_NAME})
if (LLVM_CONFIG_EXE)
execute_process(COMMAND ${LLVM_CONFIG_EXE} --version OUTPUT_VARIABLE LLVM_PACKAGE_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE )
if (${LLVM_PACKAGE_VERSION} VERSION_GREATER "3.3")
execute_process(COMMAND ${LLVM_CONFIG_EXE} --includedir OUTPUT_VARIABLE LLVM_INCLUDE_DIRS
OUTPUT_STRIP_TRAILING_WHITESPACE )
execute_process(COMMAND ${LLVM_CONFIG_EXE} --ldflags OUTPUT_VARIABLE LLVM_LDFLAGS
OUTPUT_STRIP_TRAILING_WHITESPACE )
check_library_exists(LLVM-${LLVM_PACKAGE_VERSION} LLVMVerifyFunction "${LLVM_LDFLAGS}" HAVE_DYNAMIC_LLVM_${LLVM_PACKAGE_VERSION})
if (HAVE_DYNAMIC_LLVM_${LLVM_PACKAGE_VERSION})
set(LLVM_LIBRARIES "${LLVM_LDFLAGS} -lLLVM-${LLVM_PACKAGE_VERSION}")
set(CMAKE_REQUIRED_LIBRARIES ${LLVM_LIBRARIES})
CHECK_CXX_SOURCE_COMPILES(
"#include <llvm-c/Disassembler.h>
#include <llvm-c/Target.h>
int main(int argc, char **argv)
{
LLVMInitializeAllTargetInfos();
LLVMInitializeAllTargetMCs();
LLVMInitializeAllDisassemblers();
return 0;
}"
LLVM_FOUND)
unset(CMAKE_REQUIRED_LIBRARIES)
if (LLVM_FOUND)
break()
endif()
endif()
endif()
endif()
endforeach()