File echoping-link-libm.patch of Package echoping

diff --git a/Makefile.in b/Makefile.in
index d87a5bd..5fee4bd 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -226,7 +226,7 @@ top_srcdir = @top_srcdir@
 man_MANS = echoping.1
 echoping_SOURCES = echoping.c error.c readline.c writen.c util.c http.c icp.c HTParse.c echoping.h icp.h HTParse.h smtp.c
 pkginclude_HEADERS = echoping.h compilation.h
-echoping_LDADD = 
+echoping_LDADD = -lm
 echoping_LDFLAGS = -export-dynamic
 DOCS = DETAILS PLUGINS
 SUBDIRS = plugins