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build: make sure LLVM is exactly correct

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* check the version to be the correct major version
 * ensure that it has all the default targets enabled
This commit is contained in:
Andrew Kelley 2019-02-07 12:18:01 -05:00
parent 2b2bf53a49
commit 7843c96df8
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GPG Key ID: 7C5F548F728501A9
1 changed files with 38 additions and 2 deletions
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40
cmake/Findllvm.cmake
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@ -15,14 +15,50 @@ find_program(LLVM_CONFIG_EXE
"c:/msys64/mingw64/bin"
"C:/Libraries/llvm-7.0.0/bin")
if ("${LLVM_CONFIG_EXE}" STREQUAL "LLVM_CONFIG_EXE-NOTFOUND")
message(FATAL_ERROR "unable to find llvm-config")
endif()
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --version
OUTPUT_VARIABLE LLVM_CONFIG_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(LLVM_CONFIG_VERSION VERSION_LESS 7)
message(FATAL_ERROR "expected LLVM version >=7 but found ${LLVM_CONFIG_VERSION}")
if("${LLVM_CONFIG_VERSION}" VERSION_LESS 7)
message(FATAL_ERROR "expected LLVM 7.x but found ${LLVM_CONFIG_VERSION}")
endif()
if("${LLVM_CONFIG_VERSION}" VERSION_EQUAL 8)
message(FATAL_ERROR "expected LLVM 7.x but found ${LLVM_CONFIG_VERSION}")
endif()
if("${LLVM_CONFIG_VERSION}" VERSION_GREATER 8)
message(FATAL_ERROR "expected LLVM 7.x but found ${LLVM_CONFIG_VERSION}")
endif()
execute_process(
COMMAND ${LLVM_CONFIG_EXE} --targets-built
OUTPUT_VARIABLE LLVM_TARGETS_BUILT_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_TARGETS_BUILT "${LLVM_TARGETS_BUILT_SPACES}")
function(NEED_TARGET TARGET_NAME)
list (FIND LLVM_TARGETS_BUILT "${TARGET_NAME}" _index)
if (${_index} EQUAL -1)
message(FATAL_ERROR "LLVM is missing target ${TARGET_NAME}. Zig requires LLVM to be built with all default targets enabled.")
endif()
endfunction(NEED_TARGET)
NEED_TARGET("AArch64")
NEED_TARGET("AMDGPU")
NEED_TARGET("ARM")
NEED_TARGET("BPF")
NEED_TARGET("Hexagon")
NEED_TARGET("Lanai")
NEED_TARGET("Mips")
NEED_TARGET("MSP430")
NEED_TARGET("NVPTX")
NEED_TARGET("PowerPC")
NEED_TARGET("Sparc")
NEED_TARGET("SystemZ")
NEED_TARGET("X86")
NEED_TARGET("XCore")
if(NOT(CMAKE_BUILD_TYPE STREQUAL "Debug") OR ZIG_STATIC)
execute_process(