Allow building libsigrok without libserialport.

Since the DER EE DE-5000 driver is currently the only user of
the es51919 module and it depends on the libserialport, compile
the module only if the DER EE DE-5000 driver is enabled. This
allows libsigrok to be built without libserialport again.

diff --git a/Makefile.am b/Makefile.am
index ca70c4db9ac8ba629c0d511913e59ed5586f4347..10c0400f0429acc522b6b97b9f72b1f2a245d253 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -107,8 +107,10 @@ libsigrok_la_SOURCES += \
        src/dmm/bm25x.c
 
 # Hardware (LCR chip parsers)
+if HW_DEREE_DE5000
 libsigrok_la_SOURCES += \
        src/lcr/es51919.c
+endif
 
 # Hardware drivers
 if HW_AGILENT_DMM