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Bjørn Forsman acc76a6ef9 Change /bin/bash shebangs into /usr/bin/env bash
Not all systems have /bin/bash (e.g. NixOS[1] doesn't). Buildroot
already uses /usr/bin/env shebangs for other interpreters (perl,
python), so why not bash?

This changes only the shebangs used by Buildroot itself; stuff installed
to the target system is left unchanged.

With this applied I can run Buildroot unmodified on NixOS.

[1]: http://nixos.org/

Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2014-10-25 01:55:37 +02:00
arch arch: remove BR2_arm10t 2014-09-18 22:09:05 +02:00
board imx6sabresd/create-boot-sd.sh: allow usage for i.MX53 2014-10-25 01:04:08 +02:00
boot apply-patches.sh: Use the "APPLY_PATCHES" variable to call the script 2014-10-25 01:31:32 +02:00
configs mx53loco: update defconfig 2014-10-25 01:02:07 +02:00
docs docs/manual: document makeusers group-only creation 2014-10-22 22:12:11 +02:00
fs package: indentation cleanup 2014-10-23 22:13:29 +02:00
linux apply-patches.sh: Use the "APPLY_PATCHES" variable to call the script 2014-10-25 01:31:32 +02:00
package check-hash: silence hash ok messages when make -s is used 2014-10-25 01:42:49 +02:00
support Change /bin/bash shebangs into /usr/bin/env bash 2014-10-25 01:55:37 +02:00
system system/inittab: update to fix bug #7442 2014-10-25 01:24:11 +02:00
toolchain package: indentation cleanup 2014-10-23 22:13:29 +02:00
.defconfig buildroot: get rid of s390 support 2009-01-12 14:36:14 +00:00
.gitignore update gitignore 2013-05-04 12:41:55 +02:00
CHANGES Update for 2014.08 2014-09-01 13:20:56 +02:00
Config.in Config.in: update description of BR2_PREFER_STATIC_LIB 2014-10-13 00:18:11 +02:00
Config.in.legacy xlib_libpciaccess: Rename package to libpciaccess 2014-10-19 12:08:52 +02:00
COPYING clarify license and fix website license link 2009-05-08 09:29:41 +02:00
Makefile Makefile: make help: remove <package>- help, add link to online manual 2014-10-12 12:37:56 +02:00
Makefile.legacy Makefile.legacy: fix recursive invocation with BUILDROOT_DL_DIR and _CONFIG 2014-02-11 08:14:57 +01:00
README docs: Move README file to root 2014-03-03 21:28:39 +01:00

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

1) run 'make menuconfig'
2) select the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) Use your shiny new root filesystem. Depending on which sort of
    root filesystem you selected, you may want to loop mount it,
    chroot into it, nfs mount it on your target device, burn it
    to flash, or whatever is appropriate for your target system.

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

Offline build:
==============

In order to do an offline-build (not connected to the net), fetch all
selected source by issuing a
$ make source

before you disconnect.
If your build-host is never connected, then you have to copy buildroot
and your toplevel .config to a machine that has an internet-connection
and issue "make source" there, then copy the content of your dl/ dir to
the build-host.

Building out-of-tree:
=====================

Buildroot supports building out of tree with a syntax similar
to the Linux kernel. To use it, add O=<directory> to the
make command line, E.G.:

$ make O=/tmp/build

And all the output files (including .config) will be located under /tmp/build.

More finegrained configuration:
===============================

You can specify a config-file for uClibc:
$ make UCLIBC_CONFIG_FILE=/my/uClibc.config

And you can specify a config-file for busybox:
$ make BUSYBOX_CONFIG_FILE=/my/busybox.config

To use a non-standard host-compiler (if you do not have 'gcc'),
make sure that the compiler is in your PATH and that the library paths are
setup properly, if your compiler is built dynamically:
$ make HOSTCC=gcc-4.3.orig HOSTCXX=gcc-4.3-mine

Depending on your configuration, there are some targets you can use to
use menuconfig of certain packages. This includes:
$ make HOSTCC=gcc-4.3 linux-menuconfig
$ make HOSTCC=gcc-4.3 uclibc-menuconfig
$ make HOSTCC=gcc-4.3 busybox-menuconfig

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org