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Thomas Petazzoni bd760c3f51 toolchain-external: add support for gcc version dependency
This commit wires up the gcc version dependency mechanism in the
external toolchain backend. To do so, it:

 * Changes the definition of all pre-defined external toolchain
   profiles to select the appropriate BR2_TOOLCHAIN_GCC_AT_LEAST_*
   option.

 * For custom external toolchains, provides a visible Config.in
   "choice" to select the gcc version used in the external toolchain.

 * Adds a new check_gcc_version function, that verifies that the real
   gcc version found in the external toolchain matches the one
   declared in the Buildroot configuration.

[Thomas: use better sed expression proposed by Yann E. Morin, which
works with more cases.]

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2015-08-05 12:11:20 +02:00
arch ARC: allow selection of MMU page size 2015-07-18 14:07:35 +02:00
board board: add support for ARC AXS101 and AXS103 Software Development Platforms 2015-08-04 20:05:23 +02:00
boot grub2: build El Torito image only for i386 PC platform 2015-07-29 17:03:15 +02:00
configs board: add support for ARC AXS101 and AXS103 Software Development Platforms 2015-08-04 20:05:23 +02:00
docs docs/manual: Modify GitHub FOO_SITE explanation 2015-07-28 23:37:39 +02:00
fs fs/iso9660: install Isolinux comboot modules 2015-07-30 23:31:26 +02:00
linux linux: bump default to version 4.1.4 2015-08-04 11:26:41 +02:00
package gcc: select the appropriate BR2_TOOLCHAIN_GCC_AT_LEAST_* option 2015-08-05 10:40:29 +02:00
support docs/manual: fix generation of deprecated list 2015-08-02 19:18:51 +02:00
system skeleton: New package 2015-07-14 18:08:23 +02:00
toolchain toolchain-external: add support for gcc version dependency 2015-08-05 12:11:20 +02:00
.defconfig arch: kill avr32 2015-02-14 17:39:50 +01:00
.gitignore update gitignore 2013-05-04 12:41:55 +02:00
CHANGES CHANGES: add release note for the permissions 2015-07-13 17:03:13 +02:00
Config.in core: fix download menu 2015-07-14 09:46:51 +02:00
Config.in.legacy package/kodi-pvr-wmc: new package 2015-07-30 09:37:45 +02:00
COPYING clarify license and fix website license link 2009-05-08 09:29:41 +02:00
Makefile Makefile: unexport O 2015-07-26 15:06:55 +02:00
Makefile.legacy Makefile.legacy: fix recursive invocation with BUILDROOT_DL_DIR and _CONFIG 2014-02-11 08:14:57 +01:00
README README: mention 'make list-defconfigs' 2015-04-04 15:19:43 +02:00

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
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You can also find us on #buildroot on Freenode IRC.