diff --git a/.cvsignore b/.cvsignore
index b0f81a5..c38f7e0 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1 +1 @@
-avr-libc-1.4.6.tar.bz2
+avr-libc-1.6.4.tar.bz2
diff --git a/avr-libc-1.4.6-documentation-encoding.patch b/avr-libc-1.4.6-documentation-encoding.patch
deleted file mode 100644
index 8524204..0000000
--- a/avr-libc-1.4.6-documentation-encoding.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-diff -upr avr-libc-1.4.6/doc/api/doxygen.config.in avr-libc-1.4.6_new/doc/api/doxygen.config.in
---- avr-libc-1.4.6/doc/api/doxygen.config.in	2007-04-21 22:09:47.000000000 +0200
-+++ avr-libc-1.4.6_new/doc/api/doxygen.config.in	2007-05-24 22:49:35.000000000 +0200
-@@ -843,7 +843,7 @@ USE_PDFLATEX           = NO
- # running if errors occur, instead of asking the user for help. 
- # This option is also used when generating formulas in HTML.
- 
--LATEX_BATCHMODE        = YES
-+LATEX_BATCHMODE        = NO
- 
- # If LATEX_HIDE_INDICES is set to YES then doxygen will not 
- # include the index chapters (such as File Index, Compound Index, etc.) 
-diff -upr avr-libc-1.4.6/include/stdio.h avr-libc-1.4.6_new/include/stdio.h
---- avr-libc-1.4.6/include/stdio.h	2007-01-23 16:34:58.000000000 +0100
-+++ avr-libc-1.4.6_new/include/stdio.h	2007-05-24 22:39:12.000000000 +0200
-@@ -494,7 +494,7 @@ extern int	fclose(FILE *__stream);
-       
-    -   An optional decimal digit string specifying a minimum field width.
-        If the converted value has fewer characters than the field width, it
--       will be padded with spaces on the left (or right, if the left-adjust�
-+       will be padded with spaces on the left (or right, if the left-adjust-
-        ment flag has been given) to fill out the field width.
-    -   An optional precision, in the form of a period . followed by an
-        optional digit string.  If the digit string is omitted, the
diff --git a/avr-libc-1.6.4-documentation.patch b/avr-libc-1.6.4-documentation.patch
new file mode 100644
index 0000000..baafb80
--- /dev/null
+++ b/avr-libc-1.6.4-documentation.patch
@@ -0,0 +1,11 @@
+--- doc/api/doxygen.config.in.old	2009-02-17 18:13:02.000000000 -0500
++++ doc/api/doxygen.config.in	2009-02-17 18:13:48.000000000 -0500
+@@ -898,7 +898,7 @@
+ # running if errors occur, instead of asking the user for help. 
+ # This option is also used when generating formulas in HTML.
+ 
+-LATEX_BATCHMODE        = YES
++LATEX_BATCHMODE        = NO
+ 
+ # If LATEX_HIDE_INDICES is set to YES then doxygen will not 
+ # include the index chapters (such as File Index, Compound Index, etc.) 
diff --git a/avr-libc.spec b/avr-libc.spec
index 77f1c36..b1e3b48 100644
--- a/avr-libc.spec
+++ b/avr-libc.spec
@@ -1,12 +1,12 @@
 Name:           avr-libc
-Version:        1.4.6
-Release:        4%{?dist}
+Version:        1.6.4
+Release:        1%{?dist}
 Summary:        C library for use with GCC on Atmel AVR microcontrollers
 Group:          Development/Tools
 License:        BSD
 URL:            http://www.nongnu.org/avr-libc/
 Source0:        http://download.savannah.gnu.org/releases/avr-libc/avr-libc-%{version}.tar.bz2
-Patch0:         avr-libc-1.4.6-documentation-encoding.patch
+Patch0:         avr-libc-1.6.4-documentation.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-%(%{__id_u} -n)
 BuildRequires:  avr-gcc doxygen transfig netpbm-progs tetex-latex
 BuildArch:      noarch
@@ -34,7 +34,7 @@ access these).
 
 %prep
 %setup -q
-%patch0 -p1
+%patch0 -p0
 for i in doc/api/faq.dox doc/api/overview.dox include/stdio.h include/stdlib.h;
   do
     iconv -f CP1252 -t UTF8 $i > tmp
@@ -96,6 +96,10 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Thu Feb 19 2009 Thibault North <tnorth AT fedoraproject DOT org> 1.6.4-1
+- New upstream release
+- Patches update
+
 * Tue Jul 17 2007 Hans de Goede <j.w.r.degoede@hhs.nl> 1.4.6-4
 - Gzip manpages
 - Make manpages %%doc
diff --git a/import.log b/import.log
new file mode 100644
index 0000000..ac6c6b2
--- /dev/null
+++ b/import.log
@@ -0,0 +1 @@
+avr-libc-1_6_4-1_fc11:F-10:avr-libc-1.6.4-1.fc11.src.rpm:1234913669
diff --git a/sources b/sources
index b859a47..7385e76 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-504b5e3beefc0d500ff94ea88391f71d  avr-libc-1.4.6.tar.bz2
+d050e4790ddab7ced94fcac61c36a80a  avr-libc-1.6.4.tar.bz2