diff --git a/.gitignore b/.gitignore
index ad7edab..97d27c1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 /labltk-8.06.5.tar.gz
 /8.06.10.tar.gz
 /labltk-8.06.11.tar.gz
+/labltk-8.06.12.tar.gz
diff --git a/ocaml-labltk.spec b/ocaml-labltk.spec
index f0a0486..329c5a7 100644
--- a/ocaml-labltk.spec
+++ b/ocaml-labltk.spec
@@ -6,8 +6,8 @@
 %endif
 
 Name:          ocaml-labltk
-Version:       8.06.11
-Release:       5%{?dist}
+Version:       8.06.12
+Release:       1%{?dist}
 
 Summary:       Tcl/Tk interface for OCaml
 
@@ -60,7 +60,7 @@ echo -e 'all:\ninstall:\n' > browser/Makefile
 
 
 %build
-./configure
+./configure -verbose
 
 # Build does not work in parallel.
 unset MAKEFLAGS
@@ -116,6 +116,10 @@ install -m 0644 camltk/*.o $RPM_BUILD_ROOT%{_libdir}/ocaml/labltk
 
 
 %changelog
+* Tue Sep 20 2022 Richard W.M. Jones <rjones@redhat.com> - 8.06.12-1
+- New upstream version 8.06.12
+- Enable verbose output from configure script.
+
 * Fri Jul 22 2022 Fedora Release Engineering <releng@fedoraproject.org> - 8.06.11-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
 
diff --git a/sources b/sources
index 8f4ff2d..d78eff7 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (labltk-8.06.11.tar.gz) = a4ad5fa31cbc89066445bc71a0c1c016f7e299b6bf88a5f77d559c805bc78d90651988658c8a300770ca41514ad73272691feaa84179637fcc695c96bbf25dd6
+SHA512 (labltk-8.06.12.tar.gz) = e1564ab2d8922276bd8ad586b37308d60ca2dd563bac3cdd992d8a6ba4de26e5499350a62a1d4cb2bbb9a5b7aff609b5187aad5fba118eb55d1b4c8355d2979a