This patch enable building all linux supported LCL widget sets.

diff --git a/lcl/Makefile.fpc b/lcl/Makefile.fpc
index ecd40c3..dd35600 100644
--- a/lcl/Makefile.fpc
+++ b/lcl/Makefile.fpc
@@ -152,6 +152,7 @@ cleanintf:
 	$(MAKE) -C interfaces clean
 
 all: lclbase compiled intf
+	for WS in gtk2 nogui qt ; do ${MAKE} intf LCL_PLATFORM=$${WS} ; done
 
 cleanlaz: cleanall
 cleanall: clean
