[Misc] Make code compilable with GCC 13 (#7363)

Co-authored-by: Hongzhi (Steve), Chen <chenhongzhi.nkcs@gmail.com>

.gitmodules

@@ -31,3 +31,6 @@
 [submodule "third_party/cuco"]
 	path = third_party/cuco
 	url = https://github.com/NVIDIA/cuCollections.git
+[submodule "third_party/GKlib"]
+	path = third_party/GKlib
+	url = https://github.com/KarypisLab/GKlib.git

CMakeLists.txt

@@ -394,13 +394,14 @@ else(EXTERNAL_METIS_PATH)
   target_include_directories(dgl PRIVATE "third_party/METIS/include")
   # Compile METIS
   if(NOT MSVC)
-    set(GKLIB_PATH "${CMAKE_CURRENT_SOURCE_DIR}/third_party/METIS/GKlib")
+    set(GKLIB_PATH "${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/")
-    list(APPEND DGL_LINKER_LIBS metis)
-    endif(NOT MSVC)
+    list(APPEND DGL_LINKER_LIBS metis GKlib)
+  endif(NOT MSVC)
 endif(EXTERNAL_METIS_PATH)
 
 

src/runtime/dlpack_convert.cc

@@ -9,6 +9,8 @@
 #include <dgl/runtime/ndarray.h>
 #include <dlpack/dlpack.h>
 
+#include <cstdint>
+
 #include "runtime_base.h"
 
 // deleter for arrays used by DLPack exporter