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--- a/src/lib/mkMake
+++ b/src/lib/mkMake
@@ -139,9 +139,9 @@
 # no effort whatsoever to maintain any kind of ABI compat in this lib. Only
 # programs or modules from the same Recoll release can be compatible.
 \$(LIBRECOLL): \$(DEPS) \$(OBJS)
-	g++ -shared -Wl,--no-undefined \
+	g++ -shared -Wl,--no-undefined -Wl,--warn-unresolved-symbols \
           -Wl,-soname=\$(LIBRECOLL) -o \$(LIBRECOLL) \$(OBJS) \
-           -lxapian -lz -lX11 -lpthread -ldl
+           \$(LIBXAPIAN) \$(LIBICONV) \$(X_LIBX11) \$(LIBSYS)
 	rm -f librecoll.so
 	ln -s \$(LIBRECOLL) librecoll.so