diff --git a/WINGs/Makefile.am b/WINGs/Makefile.am
index 023a31b1..20cbe4a7 100644
--- a/WINGs/Makefile.am
+++ b/WINGs/Makefile.am
@@ -19,7 +19,7 @@ lib_LTLIBRARIES = libWUtil.la libWINGs.la
 
 
 LDADD= libWUtil.la libWINGs.la $(top_builddir)/wrlib/libwraster.la @INTLIBS@
-libWINGs_la_LIBADD = libWUtil.la $(top_builddir)/wrlib/libwraster.la @XFTLIBS@ @FCLIBS@
+libWINGs_la_LIBADD = libWUtil.la $(top_builddir)/wrlib/libwraster.la @XFTLIBS@ @FCLIBS@ @LIBM@
 
 EXTRA_DIST = BUGS make-rgb Examples Extras Tests
 
diff --git a/configure.ac b/configure.ac
index 55e7a3ff..3568cf57 100644
--- a/configure.ac
+++ b/configure.ac
@@ -481,6 +481,17 @@ if test "$shape" = yes; then
 fi
 
 
+dnl
+dnl libWINGS uses math functions, check whether usage requires linking
+dnl against libm
+dnl
+AC_CHECK_FUNC(atan,[mathneedslibm=no;LIBM=],[mathneedslibm=dunno])
+if test "x$mathneedslibm" = "xdunno" ; then
+	AC_CHECK_LIB(m, atan, [LIBM=-lm])
+fi
+AC_SUBST(LIBM)
+
+
 dnl
 dnl libWINGS uses FcPatternDel from libfontconfig
 dnl