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Fabrice Fontaine 1d3d2d2741 package/bird: fix build with autoconf >= 2.70 
Fix the following build failure raised since bump of autoconf to version
2.71 in commit ecd54b65c1:

checking for glob.h... no
configure: error: glob.h not found.

configure:5207: checking for glob.h
configure:5230: /data/buildroot-autobuilder/instance-0/output-1/host/bin/mips64el-linux-gcc -o conftest -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0  -pthread -fno-strict-aliasing -fno-strict-overflow -flto -Wall -Wextra -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -Wno-missing-field-initializers -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -pthread -flto=4 -g conftest.c  >&5
/data/buildroot-autobuilder/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: /tmp/ccDboxph.ltrans0.ltrans.o:(.debug_info+0x2a): undefined reference to `conftest.c.0943dc99'
/data/buildroot-autobuilder/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: /tmp/ccDboxph.ltrans0.ltrans.o:(.debug_info+0x2f): undefined reference to `conftest.c.0943dc99'

This is the same problem that we tried to fix in
03c148c8de by adding AUTORECONF = YES.

The analysis made back then is probably not entirely correct - the issue
only seems to occur with GCC8, not with any earlier or later version,
which hints at a compiler bug. Since the error involves some
LTO-generated functions, the trigger is probably the -flto=4.

Whatever the exact issue is, it is avoided if we make sure that our
CFLAGS replace the default ones instead of being added to them.
Currently, they are added because the configure script doesn't properly
detect that CFLAGS was set.

Add a patch (sent upstream months ago, but it didn't appear in the
release that has been done since then) that makes sure CFLAGS is
properly detected.

Fixes:
 - http://autobuild.buildroot.org/results/d7aab7df196e0f6d6389b87ff29da7c2971e6b6d

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2022-07-25 21:24:35 +02:00
arch arch: add BR2_ARCH_NEEDS_GCC_AT_LEAST_12 2022-07-23 17:31:27 +02:00
board board/mender: add a mender board example configuration. 2022-07-24 21:04:38 +02:00
boot pacakge: drop remnants of $(HOST_DIR)/usr 2022-07-24 11:30:40 +02:00
configs board/mender: add a mender board example configuration. 2022-07-24 21:04:38 +02:00
docs docs/manual: fix patchwork URL 2022-07-23 18:57:22 +02:00
fs fs/tar: add option for zstd compression 2022-07-23 22:40:01 +02:00
linux {linux, linux-headers}: bump 4.{9, 14, 19}.x / 5.{4, 10, 15, 17}.x series 2022-07-11 18:38:46 +02:00
package package/bird: fix build with autoconf >= 2.70 2022-07-25 21:24:35 +02:00
support support/scripts/pkg-stats: tweak infras field when running with -c 2022-07-25 19:08:52 +02:00
system package/systemd: add setting for systemd default.target 2022-05-02 22:58:44 +02:00
toolchain package/elf2flt: Remove Config.in.host 2022-07-23 16:38:54 +02:00
utils utils/readme.txt: Fix typo "get-developers" 2022-07-23 18:21:21 +02:00
.clang-format .clang-format: initial import from Linux 5.15.6 2022-01-01 15:01:13 +01:00
.defconfig arch: remove support for sh64 2016-09-08 22:15:15 +02:00
.flake8 Revert ".flake8: fix check for 80/132 columns" 2021-01-02 17:38:20 +01:00
.gitignore
.gitlab-ci.yml utils/checkpackagelib/lib_sysv: run shellcheck 2022-02-06 18:27:03 +01:00
CHANGES Update for 2022.02.3 2022-06-19 12:53:35 +02:00
Config.in package/elf2flt: Remove Config.in.host 2022-07-23 16:38:54 +02:00
Config.in.legacy package/{mesa3d, mesa3d-headers}: bump version to 22.1.3 2022-07-23 22:30:14 +02:00
COPYING
DEVELOPERS package/vis-network: new package 2022-07-25 19:05:42 +02:00
Makefile Kickoff 2022.08 cycle 2022-06-07 21:06:39 +02:00
Makefile.legacy Remove BR2_DEPRECATED 2016-10-15 23:14:45 +02:00
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