diff --git a/no-parse_makefile.patch b/no-parse_makefile.patch
new file mode 100644
index 0000000..e4769df
--- /dev/null
+++ b/no-parse_makefile.patch
@@ -0,0 +1,29 @@
+diff --git a/config/gmakegen.py b/config/gmakegen.py
+index c9c476822c5..f58caab4d71 100644
+--- a/config/gmakegen.py
++++ b/config/gmakegen.py
+@@ -1,7 +1,6 @@
+ #! /usr/bin/python3 -sP
+ 
+ import os
+-from sysconfig import _parse_makefile as parse_makefile
+ import sys
+ import logging
+ sys.path.insert(0, os.path.abspath(os.path.dirname(__file__)))
+@@ -36,6 +35,16 @@ def getlangsplit(name):
+ def stripsplit(line):
+   return line[len('#requires'):].replace("'","").split()
+ 
++def parse_makefile(fn):
++    out = {}
++    with open(fn) as f:
++        for l in f:
++            print(l[:-1])
++            if "=" in l:
++                a,b = l.split("=", 1)
++                out[a.strip()] = b.strip()
++    return out
++
+ PetscPKGS = 'sys vec mat dm ksp snes ts tao'.split()
+ # the key is actually the language suffix, it won't work for suffixes such as 'kokkos.cxx' so use an _ and replace the _ as needed with .
+ LANGS = dict(kokkos_cxx='KOKKOS', hip_cpp='HIP', sycl_cxx='SYCL', raja_cxx='RAJA', c='C', cxx='CXX', cpp='CPP', cu='CU', F='F', F90='F90')
diff --git a/no-xdrlib.patch b/no-xdrlib.patch
new file mode 100644
index 0000000..87fbec3
--- /dev/null
+++ b/no-xdrlib.patch
@@ -0,0 +1,48 @@
+diff --git a/config/BuildSystem/RDict.py b/config/BuildSystem/RDict.py
+index cc90f3e26c5..d68ab095e06 100755
+--- a/config/BuildSystem/RDict.py
++++ b/config/BuildSystem/RDict.py
+@@ -83,7 +83,7 @@ Arg class, which wraps the usual value.'''
+   def __init__(self, parentAddr = None, parentDirectory = None, load = 1, autoShutdown = 1, readonly = False):
+     import atexit
+     import time
+-    import xdrlib
++    #import xdrlib
+ 
+     self.logFile         = None
+     self.setupLogFile()
+@@ -98,8 +98,8 @@ Arg class, which wraps the usual value.'''
+     self.isServer        = 0
+     self.readonly        = readonly
+     self.parentDirectory = parentDirectory
+-    self.packer          = xdrlib.Packer()
+-    self.unpacker        = xdrlib.Unpacker('')
++    #self.packer          = xdrlib.Packer()
++    #self.unpacker        = xdrlib.Unpacker('')
+     self.stopCmd         = pickle.dumps(('stop',))
+     self.writeLogLine('Greetings')
+     self.connectParent(self.parentAddr, self.parentDirectory)
+@@ -116,8 +116,8 @@ Arg class, which wraps the usual value.'''
+     if 'parent'    in d: del d['parent']
+     if 'saveTimer' in d: del d['saveTimer']
+     if '_setCommandLine' in d: del d['_setCommandLine']
+-    del d['packer']
+-    del d['unpacker']
++    #del d['packer']
++    #del d['unpacker']
+     del d['logFile']
+     return d
+ 
+@@ -126,9 +126,9 @@ Arg class, which wraps the usual value.'''
+     self.logFile  = open('RDict.log', 'a')
+     self.writeLogLine('Unpickling RDict')
+     self.__dict__.update(d)
+-    import xdrlib
+-    self.packer   = xdrlib.Packer()
+-    self.unpacker = xdrlib.Unpacker('')
++    #import xdrlib
++    #self.packer   = xdrlib.Packer()
++    #self.unpacker = xdrlib.Unpacker('')
+     self.connectParent(self.parentAddr, self.parentDirectory)
+     return
+ 
diff --git a/petsc.spec b/petsc.spec
index b83c06c..3d6d84f 100644
--- a/petsc.spec
+++ b/petsc.spec
@@ -309,6 +309,9 @@ Patch4:  %{name}-3.19.4-fix_metis64.patch
 Patch6:  %{name}-3.14.1-fix_pkgconfig_file.patch
 Patch7:  %{name}-3.17.0-avoid_fake_MKL_detection.patch
 
+Patch100: no-xdrlib.patch
+Patch101: no-parse_makefile.patch
+
 %if %{with superlu}
 BuildRequires: SuperLU-devel >= 5.2.0
 %endif
@@ -587,6 +590,8 @@ done
 
 pushd %{name}-%{version}
 %patch -P 7 -p1 -b .backup
+%patch -P 100 -p1
+%patch -P 101 -p1
 popd
 
 # Remove pregenerated Cython C sources