builder4_VALAFLAGS = \
- --thread --target-glib=2.32 --vapidir=$(srcdir)/vapi -g $(builder4_PKGS)
+ --thread -X -lm --target-glib=2.32 --vapidir=$(srcdir)/vapi -g $(builder4_PKGS)
builder4_LDADD = $(BUILDER_LIBS) $(LIBVALA_LIBS) $(GDA_LIBS) $(WEBKIT_LIBS) $(VTE_LIBS) $(JAVASCRIPTCOREGTK_LIBS)