diff -Nru cvsgraph-1.7.0/debian/changelog cvsgraph-1.7.0/debian/changelog
--- cvsgraph-1.7.0/debian/changelog	2013-05-06 21:32:52.000000000 +0000
+++ cvsgraph-1.7.0/debian/changelog	2013-07-10 18:45:21.000000000 +0000
@@ -1,3 +1,9 @@
+cvsgraph (1.7.0-3+rpi1) jessie-staging; urgency=low
+
+  * Forciblly add -lm to ldflags to prevent link failure.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Wed, 10 Jul 2013 18:45:02 +0000
+
 cvsgraph (1.7.0-3) unstable; urgency=low
 
   * Explicitly specify source format.
diff -Nru cvsgraph-1.7.0/debian/rules cvsgraph-1.7.0/debian/rules
--- cvsgraph-1.7.0/debian/rules	2013-05-06 21:30:31.000000000 +0000
+++ cvsgraph-1.7.0/debian/rules	2013-07-10 18:44:43.000000000 +0000
@@ -8,6 +8,8 @@
 export DPKG_EXPORT_BUILDFLAGS=1
 include /usr/share/dpkg/buildflags.mk
 
+export LDFLAGS += -lm
+
 configure: configure-stamp
 configure-stamp:
 	dh_testdir