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-rw-r--r--gr-audio/examples/c++/Makefile.am4
1 files changed, 3 insertions, 1 deletions
diff --git a/gr-audio/examples/c++/Makefile.am b/gr-audio/examples/c++/Makefile.am
index 88bd7c1fd..d3283354f 100644
--- a/gr-audio/examples/c++/Makefile.am
+++ b/gr-audio/examples/c++/Makefile.am
@@ -35,4 +35,6 @@ GR_AUDIO_LA=$(top_builddir)/gr-audio/lib/libgnuradio-audio.la
noinst_PROGRAMS = dial_tone
dial_tone_SOURCES = dial_tone.cc
-dial_tone_LDADD = $(GNURADIO_CORE_LA) $(GR_AUDIO_LA)
+dial_tone_LDADD = \
+ $(GNURADIO_CORE_LA) $(GR_AUDIO_LA) \
+ $(BOOST_FILESYSTEM_LIB)