# Compile rules for gcc source files.
%.o: %.c
- $(HOST_CC) $(_CGO_CFLAGS_$(GOARCH)) -g -fPIC -O2 -o $@ -c $(CGO_CFLAGS) $(_CGO_CFLAGS) $*.c
+ $(HOST_CC) $(_CGO_CFLAGS_$(GOARCH)) -g -fPIC -O2 -o $@ -c -I_obj $(CGO_CFLAGS) $(_CGO_CFLAGS) $*.c
%.o: _obj/%.c
- $(HOST_CC) $(_CGO_CFLAGS_$(GOARCH)) -I . -g -fPIC -O2 -o $@ -c $(CGO_CFLAGS) $(_CGO_CFLAGS) $^
+ $(HOST_CC) $(_CGO_CFLAGS_$(GOARCH)) -I . -g -fPIC -O2 -o $@ -c -I_obj $(CGO_CFLAGS) $(_CGO_CFLAGS) $^
# To find out which symbols are needed from external libraries
# and which libraries are needed, we build a simple a.out that