It might compile against a previously-installed one unless the linker
finds it in the top directory first.
runtc_SOURCES = runtc.c
runtc_CPPFLAGS = $(CPPFLAGS_PYTHON) $(LIBSIGROK_CFLAGS) \
-DDECODERS_DIR='"$(abs_top_builddir)/decoders"'
runtc_SOURCES = runtc.c
runtc_CPPFLAGS = $(CPPFLAGS_PYTHON) $(LIBSIGROK_CFLAGS) \
-DDECODERS_DIR='"$(abs_top_builddir)/decoders"'
-runtc_LDFLAGS = $(LIBSIGROK_LIBS) $(LDFLAGS_PYTHON) -L$(top_builddir) -lsigrokdecode
+runtc_LDFLAGS = -L$(top_builddir) $(LIBSIGROK_LIBS) $(LDFLAGS_PYTHON) -lsigrokdecode