need for stdc++

git-svn-id: https://hamlib.svn.sourceforge.net/svnroot/hamlib/trunk@1646 7ae35d74-ebe9-4afe-98af-79ac388436b8

microtune/Makefile.am

@@ -31,7 +31,7 @@ GRIO_SOURCES = 		\
 lib_LTLIBRARIES = hamlib-microtune.la
 hamlib_microtune_la_SOURCES =  $(MTSRCLIST) $(GRIO_SOURCES) microtune.cc
 hamlib_microtune_la_LDFLAGS = -no-undefined -module -avoid-version
-hamlib_microtune_la_LIBADD = $(top_builddir)/src/libhamlib.la
+hamlib_microtune_la_LIBADD = $(top_builddir)/src/libhamlib.la -lstdc++
 
 noinst_HEADERS = 		\
 	i2c.h			\