diff --git a/gsl.spec b/gsl.spec
index a6b97da..9fd4251 100644
--- a/gsl.spec
+++ b/gsl.spec
@@ -1,7 +1,7 @@
 Summary: The GNU Scientific Library for numerical analysis
 Name: gsl
 Version: 1.12
-Release: 4%{?dist}
+Release: 5%{?dist}
 URL: http://www.gnu.org/software/gsl/
 Source: ftp://ftp.gnu.org/gnu/gsl/%{name}-%{version}.tar.gz
 Patch0: gsl-1.10-lib64.patch
@@ -63,11 +63,15 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
 %postun -p /sbin/ldconfig
 
 %post devel
-/sbin/install-info %{_infodir}/gsl-ref.info %{_infodir}/dir || :
+if [ -f %{_infodir}/gsl-ref.info* ]; then
+    /sbin/install-info %{_infodir}/gsl-ref.info %{_infodir}/dir || :
+fi
 
-%preun devel 
+%preun devel
 if [ "$1" = 0 ]; then
-    /sbin/install-info --delete %{_infodir}/gsl-ref.info %{_infodir}/dir || :
+    if [ -f %{_infodir}/gsl-ref.info* ]; then
+	/sbin/install-info --delete %{_infodir}/gsl-ref.info %{_infodir}/dir || :
+    fi
 fi
 
 %clean
@@ -100,6 +104,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/*.a
 
 %changelog
+* Mon Aug 10 2009 Ivana Varekova <varekova redhat com> - 1.12-5
+- fix installation with --excludedocs option (#515971)
+
 * Fri Jul 24 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.12-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild