diff --git a/mingw32-libglade2.spec b/mingw32-libglade2.spec
index fde1cb8..439638e 100644
--- a/mingw32-libglade2.spec
+++ b/mingw32-libglade2.spec
@@ -1,13 +1,10 @@
 %global __strip %{_mingw32_strip}
 %global __objdump %{_mingw32_objdump}
-%global _use_internal_dependency_generator 0
-%global __find_requires %{_mingw32_findrequires}
-%global __find_provides %{_mingw32_findprovides}
 %define __debug_install_post %{_mingw32_debug_install_post}
 
 Name:           mingw32-libglade2
 Version:        2.6.4
-Release:        9%{?dist}
+Release:        10%{?dist}
 Summary:        MinGW Windows Libglade2 library
 
 License:        LGPLv2+
@@ -19,11 +16,9 @@ Patch1:         libglade-2.0.1-nowarning.patch
 # http://bugzilla.gnome.org/show_bug.cgi?id=510736
 Patch2:         libglade-secondary.patch
 
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
-
 BuildArch:      noarch
 
-BuildRequires:  mingw32-filesystem >= 52
+BuildRequires:  mingw32-filesystem >= 68
 BuildRequires:  mingw32-gcc
 BuildRequires:  mingw32-binutils
 BuildRequires:  mingw32-gtk2
@@ -64,17 +59,11 @@ make %{?_smp_mflags}
 
 
 %install
-rm -rf $RPM_BUILD_ROOT
-
 make DESTDIR=$RPM_BUILD_ROOT install
 rm -rf $RPM_BUILD_ROOT/%{_mingw32_datadir}/gtk-doc/html/libglade
 
-%clean
-rm -rf $RPM_BUILD_ROOT
-
 
 %files
-%defattr(-,root,root,-)
 %doc COPYING
 %{_mingw32_bindir}/libglade-2.0-0.dll
 %{_mingw32_bindir}/libglade-convert
@@ -87,10 +76,15 @@ rm -rf $RPM_BUILD_ROOT
 %{_mingw32_datadir}/xml/libglade/glade-2.0.dtd
 
 %files static
-%defattr(-,root,root,-)
 %{_mingw32_libdir}/libglade-2.0.a
 
+
 %changelog
+* Tue Jan 31 2012 Erik van Pienbroek <epienbro@fedoraproject.org> - 2.6.4-10
+- Rebuild against libpng 1.5
+- Dropped unneeded RPM tags
+- Dropped the dependency extraction overrides as that's done automatically as of RPM 4.9
+
 * Fri Jan 13 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.6.4-9
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild