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Fixed LLVM search. #36

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Fixed LLVM search. #36

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27 changes: 18 additions & 9 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 3.17)
cmake_minimum_required(VERSION 3.20)
project(QDP-JIT VERSION 0.1 LANGUAGES CXX;C)

include(CheckSymbolExists)
Expand Down Expand Up @@ -284,25 +284,34 @@ message( STATUS "QDP++: Setting alignment size to ${QDP_ALIGNMENT_SIZE}")
check_function_exists("gethostname" HAVE_GETHOSTNAME)
check_function_exists("strnlen" HAVE_STRNLEN)

# LLVM's LLVMConfigVersion.cmake is not smart enough to deal with
# Ranges and requires that MAJOR and MINOR version match LLVM's internal
# and that the patch version be more recent than the required patch
# version.
find_package(LLVM CONFIG REQUIRED)
if( QDP_ENABLE_LLVM20 )
find_package(LLVM "20...<21" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 20)
elseif( QDP_ENABLE_LLVM19 )
find_package(LLVM "19...<20" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 19)
elseif( QDP_ENABLE_LLVM18 )
find_package(LLVM "18...<19" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 18)
elseif( QDP_ENABLE_LLVM17 )
find_package(LLVM "17...<18" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 17)
elseif( QDP_ENABLE_LLVM16 )
find_package(LLVM "16...<17" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 16)
elseif( QDP_ENABLE_LLVM15 )
find_package(LLVM "15...<16" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 15)
elseif( QDP_ENABLE_LLVM14 )
find_package(LLVM "14...<15" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 14)
else()
find_package(LLVM "13...<14" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 13)
endif()

message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
if (NOT ${LLVM_VERSION_MAJOR} EQUAL ${WANT_LLVM_MAJOR})
message(FATAL_ERROR "LLVM Major version mismatch")
endif()

message(STATUS "Using LLVMConfig.cmake in ${LLVM_DIR}")


Expand Down
29 changes: 20 additions & 9 deletions QDPXXConfig.cmake.in
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Original file line number Diff line number Diff line change
Expand Up @@ -130,25 +130,36 @@ if("@QIO_DIR@" STREQUAL "")
list(APPEND CMAKE_PREFIX_PATH ${CMAKE_CURRENT_LIST_DIR}/../QIO)
endif()

# Now find the dependencies
# LLVM's LLVMConfigVersion.cmake is not smart enough to deal with
# Ranges and requires that MAJOR and MINOR version match LLVM's internal
# and that the patch version be more recent than the required patch
# version.
find_dependency(LLVM CONFIG REQUIRED)
if( QDP_ENABLE_LLVM20 )
find_package(LLVM "20...<21" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 20)
elseif( QDP_ENABLE_LLVM19 )
find_package(LLVM "19...<20" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 19)
elseif( QDP_ENABLE_LLVM18 )
find_package(LLVM "18...<19" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 18)
elseif( QDP_ENABLE_LLVM17 )
find_package(LLVM "17...<18" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 17)
elseif( QDP_ENABLE_LLVM16 )
find_package(LLVM "16...<17" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 16)
elseif( QDP_ENABLE_LLVM15 )
find_package(LLVM "15...<16" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 15)
elseif( QDP_ENABLE_LLVM14 )
find_package(LLVM "14...<15" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 14)
else()
find_package(LLVM "13...<14" REQUIRED CONFIG)
set(WANT_LLVM_MAJOR 13)
endif()

message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
if (NOT ${LLVM_VERSION_MAJOR} EQUAL ${WANT_LLVM_MAJOR})
message(FATAL_ERROR "LLVM Major version mismatch")
endif()

message(STATUS "Using LLVMConfig.cmake in ${LLVM_DIR}")


find_dependency(XPathReader REQUIRED)
find_dependency(FileDB REQUIRED)
Expand Down