diff --git a/bc-1.06.95-matlib.patch b/bc-1.06.95-matlib.patch
new file mode 100644
index 0000000..796c5e2
--- /dev/null
+++ b/bc-1.06.95-matlib.patch
@@ -0,0 +1,20 @@
+diff -urNp bc-1.06.95-orig/bc/storage.c bc-1.06.95/bc/storage.c
+--- bc-1.06.95-orig/bc/storage.c	2006-09-05 04:39:31.000000000 +0200
++++ bc-1.06.95/bc/storage.c	2010-12-22 10:26:43.805250912 +0100
+@@ -99,6 +99,7 @@ more_functions (VOID)
+     {
+       f = &functions[indx];
+       f->f_defined = FALSE;
++      f->f_void = FALSE;
+       f->f_body = (char *) bc_malloc (BC_START_SIZE);
+       f->f_body_size = BC_START_SIZE;
+       f->f_code_size = 0;
+@@ -179,7 +180,7 @@ more_arrays ()
+ 
+ 
+   /* Initialize the new elements. */
+-  for (; indx < v_count; indx++)
++  for (; indx < a_count; indx++)
+     arrays[indx] = NULL;
+ 
+   /* Free the old elements. */
diff --git a/bc.spec b/bc.spec
index d105560..e4bad65 100644
--- a/bc.spec
+++ b/bc.spec
@@ -1,13 +1,14 @@
 Summary: GNU's bc (a numeric processing language) and dc (a calculator)
 Name: bc
 Version: 1.06.95
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: GPLv2+
 URL: http://www.gnu.org/software/bc/
 Group: Applications/Engineering
 Source: ftp://alpha.gnu.org/pub/gnu/bc/bc-%{version}.tar.bz2
 Patch1: bc-1.06-dc_ibase.patch
 Patch2: bc-1.06.95-memleak.patch
+Patch3: bc-1.06.95-matlib.patch
 Requires(post): /sbin/install-info
 Requires(preun): /sbin/install-info
 Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -26,6 +27,7 @@ if you would like to use its text mode calculator.
 %setup -q
 %patch1 -p1 -b .dc_ibase
 %patch2 -p1 -b .memleak
+%patch3 -p1 -b .matlib
 
 %build
 %configure --with-readline
@@ -65,7 +67,11 @@ fi
 %{_infodir}/*
 
 %changelog
-* Thu Sep 24 2009 Ondrej Vasik <ovasik@redhat.com> 1.06-95-1
+* Wed Dec 22 2010 Ondrej Vasik <ovasik@redhat.com> 1.06.95-2
+- fix possible segfault in arrays handling(debbug #586969)
+- initialize f_void to work with math lib again(#664080)
+
+* Thu Sep 24 2009 Ondrej Vasik <ovasik@redhat.com> 1.06.95-1
 - update to upstream alpha 1.06.95 (in use in Gentoo, Slackware
   for quite a long time, marked stable there)
 - removed already applied patches, fix small memory leak