videobuf.mk

ifeq ($(wildcard $(KERNELSRC)/drivers),)
# Workaround for Debian et al
kerneltar := $(firstword \
		$(wildcard $(patsubst %,/usr/src/linux-source-%.tar.bz2,\
			$(shell uname -r | sed 's@-.*@@;p;s@\.[^.]*$$@@'))))
ifeq ($(kerneltar),)
ktag = v$(basename $(KVERS))
kurl = https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/plain
$(obj)/%.in:
	$(if $(KBUILD_VERBOSE:1=),@echo '  WGET   ' $@)
	$(Q)wget -O $@ "$(kurl)/drivers/media/v4l2-core/$(@F:.in=)?id=$(ktag)"
else
$(obj)/%.in: $(kerneltar)
	$(if $(KBUILD_VERBOSE:1=),@echo '  EXTRACT' $@)
	$(Q)tar -Oxf $< --wildcards '*/$(@F:.in=)' > $@
endif
else
V4L2SRC = $(wildcard \
	$(KERNELSRC)/drivers/media/video \
	$(KERNELSRC)/drivers/media/v4l2-core)
$(obj)/%.in: $(V4L2SRC)/%
	$(if $(KBUILD_VERBOSE:1=),@echo '  LN     ' $@)
	$(Q)ln -sf $< $@
endif

$(obj)/videobuf-dma-contig.c $(obj)/videobuf-dma-sg.c: %:%.in
	$(if $(KBUILD_VERBOSE:1=),@echo '  MERGE  ' $@)
	$(Q)sed '/^MODULE_/d;/^EXPORT_SYMBOL_GPL/d' $< > $@