[eog] Explicitly link against libm

[Felix Riemann <friemann src gnome org>]

commit 749437a34ddc2857f88168fc75f8ac585d5b8ea7
Author: Kalev Lember <kalevlember gmail com>
Date:   Wed Sep 19 21:50:08 2012 +0200

    Explicitly link against libm
    
    https://bugzilla.gnome.org/show_bug.cgi?id=684401

 configure.ac    |    7 +++++++
 src/Makefile.am |    3 ++-
 2 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d13dbc5..8da1759 100644
--- a/configure.ac
+++ b/configure.ac
@@ -119,6 +119,13 @@ else
 fi
 
 # ***************
+# libm (required)
+# ***************
+
+AC_CHECK_LIBM
+AC_SUBST(LIBM)
+
+# ***************
 # ZLIB (required)
 # ***************
 
diff --git a/src/Makefile.am b/src/Makefile.am
index 569cad8..2273bdf 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -150,7 +150,8 @@ libeog_la_CFLAGS =						\
 	$(WARN_CFLAGS)
 
 libeog_la_LIBADD = \
-	$(EOG_LIBS)
+	$(EOG_LIBS) \
+	$(LIBM)
 
 if HAVE_LCMS
 libeog_la_CFLAGS += 	\