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Masahiro Yamada 82977af93a 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 2bfbe7881e ("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>
 		2022-01-14 02:50:29 +09:00
Documentation doc: kbuild: fix default in `imply` table 2022-01-08 18:28:21 +09:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
arch sh: rename suffix-y to suffix_y 2022-01-14 02:50:29 +09:00
block block: call rq_qos_done() before ref check in batch completions 2021-11-26 09:53:23 -07:00
certs certs: move scripts/extract-cert to certs/ 2022-01-08 18:28:21 +09:00
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
drivers kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
fs 5 ksmbd server fixes, 4 for stable 2021-11-27 14:49:35 -08:00
include kbuild: move headers_check.pl to usr/include/ 2022-01-08 17:41:00 +09:00
init kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-11-20 10:35:54 -08:00
kernel gcov: Remove compiler version check 2021-12-02 17:25:21 +09:00
lib parisc: Increase FRAME_WARN to 2048 bytes on parisc 2021-11-22 07:37:31 +01:00
mm Fixes for 5.16 folios: 2021-11-25 10:13:56 -08:00
net kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
samples s390 updates for 5.16-rc2 2021-11-20 10:55:50 -08:00
scripts certs: move scripts/extract-cert to certs/ 2022-01-08 18:28:21 +09:00
security selinux: fix NULL-pointer dereference when hashtab allocation fails 2021-11-19 16:11:39 -05:00
sound xen: branch for v5.16-rc3 2021-11-26 09:54:13 -08:00
tools Networking fixes for 5.16-rc3, including fixes from netfilter. 2021-11-26 12:58:53 -08:00
usr kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
virt Merge branch 'kvm-5.16-fixes' into kvm-master 2021-11-18 02:11:57 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
…
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap MAINTAINERS: update email address of Christian Borntraeger 2021-11-18 17:50:54 +01:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS certs: move scripts/extract-cert to certs/ 2022-01-08 18:28:21 +09:00
Makefile kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.