explicitly link against libm

libspiro-0.2-libm.patch

@@ -0,0 +1,29 @@
+From 3b6723f326704e3e3b2d99b75f4fcf3d02d02bf5 Mon Sep 17 00:00:00 2001
+From: Joe Da Silva <digital@joescat.com>
+Date: Sat, 2 Nov 2013 21:02:42 -0700
+Subject: [PATCH] Same Check used in FontForge needed here too for '-lm' for
+ math libraries
+
+Some distros like Ubuntu, and operating systems such as BeOS require -lm
+---
+ configure.ac | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/configure.ac b/configure.ac
+index 5c5cc70..aa5bf06 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -74,6 +74,10 @@ dnl AM_MAINTAINER_MODE([enable])
+ m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],[AC_SUBST([AM_DEFAULT_VERBOSITY],[1])])
+ 
+ #-------------------------------------------
++# Check for libraries
++AC_SEARCH_LIBS([cos],[m])
++
++#-------------------------------------------
+ # Check for finite or isfinite. Use one.
+ AC_CHECK_FUNCS(finite, ,[
+   AC_MSG_CHECKING(for finite in <math.h>)
+-- 
+2.1.0
+

libspiro.spec

@@ -1,12 +1,14 @@
 Name:           libspiro
 Version:        20130930
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Library to simplify the drawing of beautiful curves
 
 Group:          System Environment/Libraries
 License:        GPLv2+
 URL:            http://libspiro.sourceforge.net/
 Source0:        https://github.com/fontforge/libspiro/archive/v0.2.tar.gz
+# Upstream commit 3b6723f326704e3e3b2d99b75f4fcf3d02d02bf5
+Patch0:         libspiro-0.2-libm.patch
 BuildRequires: automake autoconf libtool
 
 %description
@@ -25,6 +27,7 @@ developing applications that use %{name}.
 
 %prep
 %setup -q -n libspiro-0.2
+%patch0 -p1 -b .libm
 
 %build
 autoreconf -i
@@ -50,6 +53,9 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 %{_libdir}/*.so
 
 %changelog
+* Mon Dec 08 2014 Nils Philippsen <nils@redhat.com> - 20130930-4
+- explicitly link against libm
+
 * Sun Aug 17 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 20130930-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild