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bug-fix : Check for clang build dependency when building ebpf #9926

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Merged
merged 1 commit into from
Feb 21, 2025
Merged

bug-fix : Check for clang build dependency when building ebpf #9926

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26 changes: 26 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -1102,6 +1102,32 @@ endif()
if (FLB_IN_EBPF)
find_package(PkgConfig)

# Check for Clang compiler
find_program(CLANG_EXECUTABLE clang)

if (CLANG_EXECUTABLE)
message(STATUS "Clang found: ${CLANG_EXECUTABLE}")
# Get Clang version
execute_process(
COMMAND ${CLANG_EXECUTABLE} --version
OUTPUT_VARIABLE CLANG_VERSION_OUTPUT
ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (CLANG_VERSION_OUTPUT MATCHES "clang version ([0-9]+)\\.([0-9]+)\\.([0-9]+)")
set(CLANG_VERSION_MAJOR "${CMAKE_MATCH_1}")
set(CLANG_VERSION_MINOR "${CMAKE_MATCH_2}")
set(CLANG_VERSION_PATCH "${CMAKE_MATCH_3}")

message(STATUS "Detected Clang version: ${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}.${CLANG_VERSION_PATCH}")
# Check if Clang version is at least 3.7.0
if (CLANG_VERSION_MAJOR LESS 3 AND CLANG_VERSION_MINOR LESS 7)
message(FATAL_ERROR "Clang version must be at least 3.7.0, but found ${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}.${CLANG_VERSION_PATCH}")
endif()
endif()
else()
message(FATAL_ERROR "Clang not found! Please install Clang version >= 3.7.0!")
endif()

# Check for libbpf with pkg-config
pkg_check_modules(LIBBPF libbpf>=0.5.0)

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