diff --git a/srcpkgs/oath-toolkit/patches/fix-glibc-2.28.patch b/srcpkgs/oath-toolkit/patches/fix-glibc-2.28.patch
new file mode 100644
index 00000000000..bc37036a600
--- /dev/null
+++ b/srcpkgs/oath-toolkit/patches/fix-glibc-2.28.patch
@@ -0,0 +1,35 @@
+From fc0ef4aca2188c2653344924a35d19a86392d50f Mon Sep 17 00:00:00 2001
+From: maxice8 <thinkabit.ukim@gmail.com>
+Date: Sun, 23 Sep 2018 13:08:17 -0300
+Subject: [PATCH] gl/fseeko.c: fix compilation with glibc >= 2.28
+
+---
+ liboath/gl/fseeko.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/liboath/gl/fseeko.c b/liboath/gl/fseeko.c
+index 67bb9ec..6adb80e 100644
+--- liboath/gl/fseeko.c
++++ liboath/gl/fseeko.c
+@@ -47,7 +47,7 @@ fseeko (FILE *fp, off_t offset, int whence)
+ #endif
+ 
+   /* These tests are based on fpurge.c.  */
+-#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 */
+   if (fp->_IO_read_end == fp->_IO_read_ptr
+       && fp->_IO_write_ptr == fp->_IO_write_base
+       && fp->_IO_save_base == NULL)
+@@ -123,7 +123,7 @@ fseeko (FILE *fp, off_t offset, int whence)
+           return -1;
+         }
+ 
+-#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_EOF_SEEN;
+       fp->_offset = pos;
+ #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
+-- 
+2.19.0
+
+