05/11/2019 02:56, Stephen Hemminger: > When doing a cross compiling it is common to use EXTRA_CFLAGS with > --sysroot option to point to alternate root filesystem. This already > works as expected for objects and executables, it just doesn't work > correctly for shared libraries. > > When a shared library is linked using CC this flag needs to > be passed in order for libraries to be found. > > Signed-off-by: Stephen Hemminger <step...@networkplumber.org> > --- > --- a/mk/rte.shared.mk > +++ b/mk/rte.shared.mk > -O_TO_SO = $(CC) $(call linkerprefix,$(LDFLAGS)) $(LDFLAGS_$(@)) > $(EXTRA_LDFLAGS) \ > +O_TO_SO = $(CC) $(EXTRA_CFLAGS) $(call linkerprefix,$(LDFLAGS)) > $(LDFLAGS_$(@)) $(EXTRA_LDFLAGS) \ > -shared -o $@ $(OBJS-y) $(call linkerprefix,$(LDLIBS))
After several thoughts, I am afraid of the possible side effects of such a change. I think only LDFLAGS should be used when linking. If you need the same parameters at compilation and linking, you should pass the same parameters to CFLAGS and LDFLAGS.
