1 # SPDX-License-Identifier: GPL-2.0
2 
3 ifdef building_out_of_srctree
4 
5 symlinks := $(patsubst $(src)/%,%,$(wildcard $(src)/*.py))
6 
7 quiet_cmd_symlink = SYMLINK $@
8       cmd_symlink = ln -fsn $(patsubst $(obj)/%,$(abspath $(src))/%,$@) $@
9 
10 always-y += $(symlinks)
11 $(addprefix $(obj)/, $(symlinks)): FORCE
12 	$(call if_changed,symlink)
13 
14 endif
15 
16 quiet_cmd_gen_constants_py = GEN     $@
17       cmd_gen_constants_py = \
18 	$(CPP) -E -x c -P $(c_flags) $< > $@ ;\
19 	sed -i '1,/<!-- end-c-headers -->/d;' $@
20 
21 always-y += constants.py
22 $(obj)/constants.py: $(src)/constants.py.in FORCE
23 	$(call if_changed_dep,gen_constants_py)
24 
25 clean-files := *.pyc *.pyo
26