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/linux/arch/sh/boot/
H A DMakefilediff 82977af93a0dc4e70f60ca2137b67f65ebe47fc7 Sun Jan 09 19:15:25 CET 2022 Masahiro Yamada <masahiroy@kernel.org> sh: rename suffix-y to suffix_y

'export suffix-y' does not work reliably because hyphens are disallowed
in shell variables.

A similar issue was fixed by commit 2bfbe7881ee0 ("kbuild: Do not use
hyphen in exported variable name").

If I do similar in dash, ARCH=sh fails to build.

$ mv linux linux~
$ cd linux~
$ dash
$ make O=foo/bar ARCH=sh CROSS_COMPILE=sh4-linux-gnu- defconfig all
make[1]: Entering directory '/home/masahiro/linux~/foo/bar'
[ snip ]
make[4]: *** No rule to make target 'arch/sh/boot/compressed/vmlinux.bin.', needed by 'arch/sh/boot/compressed/piggy.o'. Stop.
make[3]: *** [/home/masahiro/linux~/arch/sh/boot/Makefile:40: arch/sh/boot/compressed/vmlinux] Error 2
make[2]: *** [/home/masahiro/linux~/arch/sh/Makefile:194: zImage] Error 2
make[1]: *** [/home/masahiro/linux~/Makefile:350: __build_one_by_one] Error 2
make[1]: Leaving directory '/home/masahiro/linux~/foo/bar'
make: *** [Makefile:219: __sub-make] Error 2

The maintainer of GNU Make stated that there is no consistent way to
export variables that do not meet the shell's naming criteria.
(https://savannah.gnu.org/bugs/?55719)

Consequently, you cannot use hyphens in exported variables.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
/linux/arch/sh/boot/compressed/
H A DMakefilediff 82977af93a0dc4e70f60ca2137b67f65ebe47fc7 Sun Jan 09 19:15:25 CET 2022 Masahiro Yamada <masahiroy@kernel.org> sh: rename suffix-y to suffix_y

'export suffix-y' does not work reliably because hyphens are disallowed
in shell variables.

A similar issue was fixed by commit 2bfbe7881ee0 ("kbuild: Do not use
hyphen in exported variable name").

If I do similar in dash, ARCH=sh fails to build.

$ mv linux linux~
$ cd linux~
$ dash
$ make O=foo/bar ARCH=sh CROSS_COMPILE=sh4-linux-gnu- defconfig all
make[1]: Entering directory '/home/masahiro/linux~/foo/bar'
[ snip ]
make[4]: *** No rule to make target 'arch/sh/boot/compressed/vmlinux.bin.', needed by 'arch/sh/boot/compressed/piggy.o'. Stop.
make[3]: *** [/home/masahiro/linux~/arch/sh/boot/Makefile:40: arch/sh/boot/compressed/vmlinux] Error 2
make[2]: *** [/home/masahiro/linux~/arch/sh/Makefile:194: zImage] Error 2
make[1]: *** [/home/masahiro/linux~/Makefile:350: __build_one_by_one] Error 2
make[1]: Leaving directory '/home/masahiro/linux~/foo/bar'
make: *** [Makefile:219: __sub-make] Error 2

The maintainer of GNU Make stated that there is no consistent way to
export variables that do not meet the shell's naming criteria.
(https://savannah.gnu.org/bugs/?55719)

Consequently, you cannot use hyphens in exported variables.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>