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[dev] define _POSIX_C_SOURCE for metis build only #7571

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Jul 23, 2024
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[dev] define _POSIX_C_SOURCE for metis build only #7571

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5a0f568
[dev] define _POSIX_C_SOURCE for metis build only
Rhett-Ying Jul 23, 2024
8fb28f3
refine
Rhett-Ying Jul 23, 2024
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11 changes: 5 additions & 6 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -373,18 +373,17 @@ else(EXTERNAL_METIS_PATH)
target_include_directories(dgl PRIVATE "third_party/METIS/include")
# Compile METIS
if(NOT MSVC)
# When building on ubi7, it fails with the following error:
# /usr/include/signal.h:156:29: error: unknown type name 'siginfo_t'.
# So I(Rui) added the following 2 lines to fix the issue.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_POSIX_C_SOURCE=200809L")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_POSIX_C_SOURCE=200809L")

set(GKLIB_PATH "${CMAKE_CURRENT_SOURCE_DIR}/third_party/GKlib")
include(${GKLIB_PATH}/GKlibSystem.cmake)
include_directories(${GKLIB_PATH})
add_library(GKlib ${GKlib_sources})
include_directories("third_party/METIS/include/")
add_subdirectory("third_party/METIS/libmetis/")
# When building on ubi7, it fails with the following error:
# /usr/include/signal.h:156:29: error: unknown type name 'siginfo_t'.
# So I(Rui) define _POSIX_C_SOURCE to 200809L for GKlib and metis to avoid the error.
target_compile_definitions(GKlib PRIVATE _POSIX_C_SOURCE=200809L)
target_compile_definitions(metis PRIVATE _POSIX_C_SOURCE=200809L)
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list(APPEND DGL_LINKER_LIBS metis GKlib)
endif(NOT MSVC)
endif(EXTERNAL_METIS_PATH)
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