diff --git a/tcsh-6.19.00-014-do-not-use-union-wait.patch b/tcsh-6.19.00-014-do-not-use-union-wait.patch
new file mode 100644
index 0000000..f809036
--- /dev/null
+++ b/tcsh-6.19.00-014-do-not-use-union-wait.patch
@@ -0,0 +1,58 @@
+From c43b072b89f19e9b41d45bdf3946593ae9bc6e5e Mon Sep 17 00:00:00 2001
+From: christos <christos>
+Date: Mon, 24 Aug 2015 07:08:42 +0000
+Subject: [PATCH 1/2] restrict BSDWAIT to __GLIBC__ because other linux
+ libraries (muslc) don't have the macros.
+
+---
+ sh.proc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sh.proc.c b/sh.proc.c
+index 76eca3b..ad07250 100644
+--- a/sh.proc.c
++++ b/sh.proc.c
+@@ -47,7 +47,7 @@ RCSID("$tcsh$")
+ # define HZ 16
+ #endif /* aiws */
+ 
+-#if defined(_BSD) || (defined(IRIS4D) && __STDC__) || defined(__lucid) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
++#if defined(_BSD) || (defined(IRIS4D) && __STDC__) || defined(__lucid) || defined(__GLIBC__)
+ # if !defined(__ANDROID__)
+ #  define BSDWAIT
+ # endif
+-- 
+2.5.5
+
+
+From eab72f9797ec4faaf1fb4de491c357f194b84dd6 Mon Sep 17 00:00:00 2001
+From: christos <christos>
+Date: Thu, 14 Apr 2016 11:09:09 +0000
+Subject: [PATCH 2/2] GLIBC is getting rid of union wait.
+
+---
+ sh.proc.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/sh.proc.c b/sh.proc.c
+index ad07250..5c68409 100644
+--- a/sh.proc.c
++++ b/sh.proc.c
+@@ -47,11 +47,11 @@ RCSID("$tcsh$")
+ # define HZ 16
+ #endif /* aiws */
+ 
+-#if defined(_BSD) || (defined(IRIS4D) && __STDC__) || defined(__lucid) || defined(__GLIBC__)
+-# if !defined(__ANDROID__)
++#if defined(_BSD) || (defined(IRIS4D) && __STDC__) || defined(__lucid) || defined(__linux__) || defined(__GNU__)
++# if !defined(__ANDROID__) && !defined(__GLIBC__)
+ #  define BSDWAIT
+ # endif
+-#endif /* _BSD || (IRIS4D && __STDC__) || __lucid || glibc */
++#endif /* _BSD || (IRIS4D && __STDC__) || __lucid || gnu-linux */
+ #ifndef WTERMSIG
+ # define WTERMSIG(w)	(((union wait *) &(w))->w_termsig)
+ # ifndef BSDWAIT
+-- 
+2.5.5
+
diff --git a/tcsh.spec b/tcsh.spec
index 8c24720..85f23c0 100644
--- a/tcsh.spec
+++ b/tcsh.spec
@@ -42,6 +42,7 @@ Patch010: tcsh-6.19.00-010-fix-editor-and-visual-variables-and-its-behaviour.pat
 Patch011: tcsh-6.19.00-011-man-page-spelling-fixes.patch
 Patch012: tcsh-6.19.00-012-display-default-in-editor.patch
 Patch013: tcsh-6.19.00-013-VImode-variable-provided.patch
+Patch014: tcsh-6.19.00-014-do-not-use-union-wait.patch
 
 
 # Downstream patches -- these should be always included when doing rebase:
@@ -176,6 +177,7 @@ fi
     tcsh-6.19.00-011-man-page-spelling-fixes.patch
     tcsh-6.19.00-012-display-default-in-editor.patch
     tcsh-6.19.00-013-VImode-variable-provided.patch
+    tcsh-6.19.00-014-do-not-use-union-wait.patch
 
 * Thu Apr 21 2016 David Kaspar [Dee'Kej] <dkaspar@redhat.com> - 6.19.00-6
 - Drop tcsh-6.15.00-closem.patch - issue not reproducible, patch not accepted by upstream