added MATH_LIBS

git-svn-id: https://hamlib.svn.sourceforge.net/svnroot/hamlib/trunk@932 7ae35d74-ebe9-4afe-98af-79ac388436b8

src/Makefile.am

@@ -6,7 +6,7 @@ lib_LTLIBRARIES = libhamlib.la
 libhamlib_la_SOURCES = $(RIGSRC)
 libhamlib_la_LDFLAGS = -no-undefined -release @VERSION@ -version-info 0:0:0
 libhamlib_la_CFLAGS = -DIN_HAMLIB $(AM_CFLAGS)
-libhamlib_la_LIBADD = @LIBLTDL@ ../lib/libmisc.la -lm
+libhamlib_la_LIBADD = @LIBLTDL@ ../lib/libmisc.la @MATH_LIBS@
 
 noinst_HEADERS = event.h misc.h serial.h iofunc.h cal.h tones.h \
 					conf.h rot_conf.h token.h