diff --git a/trunk/4af4a4a71827c0bc5e0ec67af23edef4f15cee8e.patch b/trunk/4af4a4a71827c0bc5e0ec67af23edef4f15cee8e.patch
new file mode 100644
index 0000000..bfcc13b
--- /dev/null
+++ b/trunk/4af4a4a71827c0bc5e0ec67af23edef4f15cee8e.patch
@@ -0,0 +1,30 @@
+diff --git a/lib/fseterr.c b/lib/fseterr.c
+index 82649c3ac..adb637256 100644
+--- a/lib/fseterr.c
++++ b/lib/fseterr.c
+@@ -29,7 +29,7 @@ fseterr (FILE *fp)
+   /* Most systems provide FILE as a struct and the necessary bitmask in
+      <stdio.h>, because they need it for implementing getc() and putc() as
+      fast macros.  */
+-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
++#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+   fp->_flags |= _IO_ERR_SEEN;
+ #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
+   /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */
+diff --git a/lib/stdio-impl.h b/lib/stdio-impl.h
+index 78d896e9f..05c5752a2 100644
+--- a/lib/stdio-impl.h
++++ b/lib/stdio-impl.h
+@@ -18,6 +18,12 @@
+    the same implementation of stdio extension API, except that some fields
+    have different naming conventions, or their access requires some casts.  */
+ 
++/* Glibc 2.28 made _IO_IN_BACKUP private.  For now, work around this
++   problem by defining it ourselves.  FIXME: Do not rely on glibc
++   internals.  */
++#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN
++# define _IO_IN_BACKUP 0x100
++#endif
+ 
+ /* BSD stdio derived implementations.  */
+ 
diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
index cdaec6e..02195f1 100644
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -10,24 +10,32 @@ arch=('x86_64')
 url="http://lbzip2.org"
 license=('GPL3')
 depends=('glibc')
-source=(http://archive.lbzip2.org/$pkgname-$pkgver.tar.bz2)
-sha512sums=('63468178604df926bd2071c23b068bddcb6fcab54bac92a149224c5ed99a38cc7e8366ae21eecf12ad9c1a193827ef627d2517ac9a7a65791a959dfcacd96127')
+source=(http://archive.lbzip2.org/$pkgname-$pkgver.tar.bz2
+        4af4a4a71827c0bc5e0ec67af23edef4f15cee8e.patch)
+sha512sums=('63468178604df926bd2071c23b068bddcb6fcab54bac92a149224c5ed99a38cc7e8366ae21eecf12ad9c1a193827ef627d2517ac9a7a65791a959dfcacd96127'
+            '9f46ee5008c95008ee937faae79a045a5e5af410ca32434720ae97fa9fb05b49c6f7990a77216d850dcfd6dd72f9f95237eebb7ff32d4c4964982a2352df4963')
+
+prepare() {
+  cd "${srcdir}"/$pkgname-$pkgver
+
+  patch -p1 -i ../4af4a4a71827c0bc5e0ec67af23edef4f15cee8e.patch
+}
 
 build() {
   cd "${srcdir}"/$pkgname-$pkgver
- 
+
   ./configure --prefix=/usr
   make
 }
 
 check() {
   cd "${srcdir}"/$pkgname-$pkgver
-  
+
   make check
 }
 
 package() {
   cd "${srcdir}"/$pkgname-$pkgver
- 
+
   make DESTDIR="${pkgdir}" install
 }