diff -Nru mpsolve-3.2.1/debian/changelog mpsolve-3.2.1/debian/changelog
--- mpsolve-3.2.1/debian/changelog	2023-06-20 15:11:30.000000000 +0000
+++ mpsolve-3.2.1/debian/changelog	2023-08-15 03:17:45.000000000 +0000
@@ -1,3 +1,12 @@
+mpsolve (3.2.1-9) unstable; urgency=medium
+
+  * debian/clean
+    - New file; remove generated __pycache__ directory (Closes: #1048417).
+  * debian/libmps3.symbols
+    - Add new symbols that appear when building with GCC 12.
+
+ -- Doug Torrance <dtorrance@debian.org>  Mon, 14 Aug 2023 23:17:45 -0400
+
 mpsolve (3.2.1-8) unstable; urgency=medium
 
   * debian/control
diff -Nru mpsolve-3.2.1/debian/clean mpsolve-3.2.1/debian/clean
--- mpsolve-3.2.1/debian/clean	1970-01-01 00:00:00.000000000 +0000
+++ mpsolve-3.2.1/debian/clean	2023-08-15 03:15:30.000000000 +0000
@@ -0,0 +1 @@
+examples/python/__pycache__/
diff -Nru mpsolve-3.2.1/debian/libmps3.symbols mpsolve-3.2.1/debian/libmps3.symbols
--- mpsolve-3.2.1/debian/libmps3.symbols	2023-06-20 15:11:30.000000000 +0000
+++ mpsolve-3.2.1/debian/libmps3.symbols	2023-08-14 11:20:44.000000000 +0000
@@ -86,6 +86,8 @@
  (c++)"mps::formal::Monomial::isReal() const@Base" 3.1.8
  (c++)"mps::formal::Monomial::isZero() const@Base" 3.1.8
  (c++)"mps::formal::Monomial::operator*(mps::formal::Monomial const&) const@Base" 3.1.8
+ (optional|c++)"mps::formal::Monomial* std::__do_uninit_copy<mps::formal::Monomial const*, mps::formal::Monomial*>(mps::formal::Monomial const*, mps::formal::Monomial const*, mps::formal::Monomial*)@Base" 3.2.1
+ (optional|c++)"mps::formal::Monomial* std::__do_uninit_fill_n<mps::formal::Monomial*, unsigned long, mps::formal::Monomial>(mps::formal::Monomial*, unsigned long, mps::formal::Monomial const&)@Base" 3.2.1
  (optional|c++)"std::ctype<char>::do_widen(char) const@Base" 3.1.8
  (optional|arch-bits=32|c++)"std::vector<mps::formal::Monomial, std::allocator<mps::formal::Monomial> >::_M_fill_insert(__gnu_cxx::__normal_iterator<mps::formal::Monomial*, std::vector<mps::formal::Monomial, std::allocator<mps::formal::Monomial> > >, unsigned int, mps::formal::Monomial const&)@Base" 3.1.8
  (optional|arch-bits=64|c++)"std::vector<mps::formal::Monomial, std::allocator<mps::formal::Monomial> >::_M_fill_insert(__gnu_cxx::__normal_iterator<mps::formal::Monomial*, std::vector<mps::formal::Monomial, std::allocator<mps::formal::Monomial> > >, unsigned long, mps::formal::Monomial const&)@Base" 3.1.8