From 553acbbe3dfc797f5c9fc3fabd701d016c63ba33 Mon Sep 17 00:00:00 2001
From: Marco Comparato <1826859+zzotta@users.noreply.github.com>
Date: Thu, 4 Apr 2019 13:11:02 +0200
Subject: xcb-util-wm: add m4 build system dependency (#11056)

---
 var/spack/repos/builtin/packages/xcb-util-wm/package.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/var/spack/repos/builtin/packages/xcb-util-wm/package.py b/var/spack/repos/builtin/packages/xcb-util-wm/package.py
index c1efeed5a4..ee3f30c3aa 100644
--- a/var/spack/repos/builtin/packages/xcb-util-wm/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util-wm/package.py
@@ -19,6 +19,8 @@ class XcbUtilWm(AutotoolsPackage):
 
     version('0.4.1', '0831399918359bf82930124fa9fd6a9b')
 
+    depends_on('m4',       type='build')
+
     depends_on('libxcb@1.4:')
 
     depends_on('pkgconfig', type='build')
-- 
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