--- a/config/BuildSystem/config/packages/metis.orig.py	2020-03-29 16:29:06.000000000 +0200
+++ b/config/BuildSystem/config/packages/metis.py	2020-04-03 18:00:37.013851959 +0200
@@ -8,8 +8,8 @@
     self.download          = ['git://https://bitbucket.org/petsc/pkg-metis.git','https://bitbucket.org/petsc/pkg-metis/get/'+self.gitcommit+'.tar.gz']
     self.downloaddirnames  = ['petsc-pkg-metis']
     self.functions         = ['METIS_PartGraphKway']
-    self.includes          = ['metis.h']
-    self.liblist           = [['libmetis.a'],['libmetis.a','libexecinfo.a']]
+    self.includes          = ['metis64.h']
+    self.liblist           = [['libmetis64.a'],['libmetis64.a','libexecinfo.a']]
     self.hastests          = 1
     self.useddirectly      = 0
     return
@@ -50,7 +50,7 @@
     config.package.Package.configureLibrary(self)
     oldFlags = self.compilers.CPPFLAGS
     self.compilers.CPPFLAGS += ' '+self.headers.toString(self.include)
-    if not self.checkCompile('#include "metis.h"', '#if (IDXTYPEWIDTH != '+ str(self.getDefaultIndexSize())+')\n#error incompatible IDXTYPEWIDTH\n#endif'):
+    if not self.checkCompile('#include "metis64.h"', '#if (IDXTYPEWIDTH != '+ str(self.getDefaultIndexSize())+')\n#error incompatible IDXTYPEWIDTH\n#endif'):
       if self.defaultIndexSize == 64:
         msg= '--with-64-bit-indices option requires a metis build with IDXTYPEWIDTH=64.\n'
       else:
--- a/src/mat/order/metisnd/metisnd.orig.c	2022-06-29 08:00:07.000000000 +0200
+++ b/src/mat/order/metisnd/metisnd.c	2023-02-23 22:35:55.373271745 +0100
@@ -1,7 +1,7 @@
 
 #include <petscmat.h>
 #include <petsc/private/matorderimpl.h>
-#include <metis.h>
+#include <metis64.h>
 
 /*
     MatGetOrdering_METISND - Find the nested dissection ordering of a given matrix.