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Yann E. MORIN 576d709a69 Revert "package/skeleton: drop $(HOST_DIR)/usr compatibility symlink" 
In 38b798da73 (package/skeleton: drop $(HOST_DIR)/usr compatibility
symlink), we considered that $(HOST_DIR)/usr is a legacy symlink, and so
we dropped it. During review, it was pointed out that:

 1. [if] something installs in HOST_DIR/usr it's probably going to
    break somewhere down the line,

 2. DESTDIR is empty for host builds. And PREFIX/usr would be completely
    crazy.

However, we do have a package where DESTDIR is not empty for host
packages. Indeed, for host-systemd, we do have a convoluted sequence
where we configure it for the traditional /usr prefix, rather than
$(HOST_DIR) for all other host packages, and we install it with
DESTDIR=$(HOST_DIR). This is because systemd has to interpret path on
the target, not on the host, and confusion ensues if host systemd is not
configured with the same prefix as the target systemd. See commit
35c11a027c (package/systemd: add host variant) for the full, in-depth
explanations.

This reverts commit 38b798da73.

This also changes the comment to note that, although legacy, the usr
symlink is still required for some weird host packages.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2023-04-13 20:33:43 +02:00
arch arch/arch.mk.xtensa: relax check on overlay file to apply only to internal toolchains 2022-11-13 22:32:31 +01:00
board board/qemu: fix post-image 2023-04-13 19:36:16 +02:00
boot Merge branch 'next' 2023-03-12 22:45:36 +01:00
configs configs/olimex_a20_olinuxino_lime*: configure eth0 with DHCP 2023-04-10 19:32:38 +02:00
docs package/doc-asciidoc: allow docs to request a specific TOC depth 2023-04-10 21:49:22 +02:00
fs fs/cpio: allow users to provide their own dracut modules 2023-02-06 22:46:35 +01:00
linux linux: use BR2_MAKE 2023-04-10 17:24:15 +02:00
package Revert "package/skeleton: drop $(HOST_DIR)/usr compatibility symlink" 2023-04-13 20:33:43 +02:00
support Makefile: merge check-flake8 into check-package 2023-04-09 22:33:24 +02:00
system system: Warn if systemd is used with kernel < 4.15 2023-02-07 22:51:26 +01:00
toolchain toolchain/toolchain-external/toolchain-external-codescape-mti-mips: remove wrong MIPS32r5 and MIPS64r5 support 2023-02-15 22:00:05 +01:00
utils utils/check-package: drop six usage 2023-04-10 21:02:35 +02:00
.checkpackageignore .checkpackageignore: remove fixed board/qemu/post-image.sh 2023-04-11 08:59:08 +02:00
.clang-format .clang-format: initial import from Linux 5.15.6 2022-01-01 15:01:13 +01:00
.defconfig
.flake8
.gitignore
.gitlab-ci.yml .gitlab-ci.yml: update Docker image to use 2023-02-07 18:15:00 +01:00
.shellcheckrc utils/check-package: improve shellcheck reproducibility 2022-07-25 23:52:47 +02:00
CHANGES Update for 2022.02.11 2023-03-19 14:58:53 +01:00
Config.in toolchain: make paranoid check of library/header paths unconditional 2023-02-05 15:11:25 +01:00
Config.in.legacy Merge branch 'next' 2023-03-12 22:45:36 +01:00
COPYING
DEVELOPERS package/python-pep517: drop package 2023-04-09 23:11:41 +02:00
Makefile Makefile: merge check-flake8 into check-package 2023-04-09 22:33:24 +02:00
Makefile.legacy
README docs: move the IRC channel away from Freenode 2021-05-29 22:16:23 +02:00

README 

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on OFTC IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches