fix android build

Change-Id: Iecc55d0e1efd74b9895aa8f71934efa887bb6984
diff --git a/external/libzmf/0001-add-missing-include.patch.1 b/external/libzmf/0001-add-missing-include.patch.1
new file mode 100644
index 0000000..db2a5c3
--- /dev/null
+++ b/external/libzmf/0001-add-missing-include.patch.1
@@ -0,0 +1,26 @@
From cec69125160906f147398c347860fee0e6aab8bf Mon Sep 17 00:00:00 2001
From: David Tardon <dtardon@redhat.com>
Date: Fri, 24 Jun 2016 09:26:21 +0200
Subject: [PATCH] add missing include

Change-Id: Ia21873123179902b2c3cad95b39db7d15c5b388a
---
 src/lib/ZMFCollector.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lib/ZMFCollector.cpp b/src/lib/ZMFCollector.cpp
index ded93c7..7e024b3 100644
--- a/src/lib/ZMFCollector.cpp
+++ b/src/lib/ZMFCollector.cpp
@@ -9,6 +9,8 @@
 
 #include "ZMFCollector.h"
 
+#include <cmath>
+
 #include <boost/math/constants/constants.hpp>
 #include <boost/variant.hpp>
 
-- 
2.7.4

diff --git a/external/libzmf/UnpackedTarball_libzmf.mk b/external/libzmf/UnpackedTarball_libzmf.mk
index 3246384..c917633 100644
--- a/external/libzmf/UnpackedTarball_libzmf.mk
+++ b/external/libzmf/UnpackedTarball_libzmf.mk
@@ -21,4 +21,8 @@ $(eval $(call gb_UnpackedTarball_add_patches,libzmf, \
endif
endif

$(eval $(call gb_UnpackedTarball_add_patches,libzmf, \
	external/libzmf/0001-add-missing-include.patch.1 \
))

# vim: set noet sw=4 ts=4: