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Commit | Line | Data |
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aefad531 YM |
1 | #!/bin/sh |
2 | # Generates a small Makefile used in the root of the output | |
3 | # directory, to allow make to be started from there. | |
4 | # The Makefile also allow for more convinient build of external modules | |
5 | ||
6 | # Usage | |
7 | # $1 - Kernel src directory | |
8 | # $2 - Output directory | |
9 | ||
10 | ||
11 | test ! -r $2/Makefile -o -O $2/Makefile || exit 0 | |
12 | # Only overwrite automatically generated Makefiles | |
13 | # (so we do not overwrite buildroot Makefile) | |
14 | if test -e $2/Makefile && ! grep -q Automatically $2/Makefile | |
15 | then | |
16 | exit 0 | |
17 | fi | |
18 | if [ "${quiet}" != "silent_" ]; then | |
19 | echo " GEN $2/Makefile" | |
20 | fi | |
21 | ||
22 | cat << EOF > $2/Makefile | |
23 | # Automatically generated by $0: don't edit | |
24 | ||
25 | lastword = \$(word \$(words \$(1)),\$(1)) | |
26 | makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST))) | |
27 | ||
28 | MAKEARGS := -C $1 | |
29 | MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir)) | |
30 | ||
31 | MAKEFLAGS += --no-print-directory | |
32 | ||
33 | .PHONY: all \$(MAKECMDGOALS) | |
34 | ||
35 | all := \$(filter-out all Makefile,\$(MAKECMDGOALS)) | |
36 | ||
37 | all: | |
38 | \$(MAKE) \$(MAKEARGS) \$(all) | |
39 | ||
40 | Makefile:; | |
41 | ||
42 | \$(all): all | |
43 | @: | |
44 | ||
45 | %/: all | |
46 | @: | |
47 | EOF |