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Max Filippov f67a4f50e2 gcc: preserve CXXFLAGS_FOR_TARGET
gcc-4.7.x, gcc-4.8.x and gcc-4.9.x don't propagate CXXFLAGS_FOR_TARGET to
CXXFLAGS for libstdc++ build. As a result libstdc++ is built without
TARGET_CFLAGS and may fail to link with applications using it, see e.g.

  http://autobuild.buildroot.net/results/81a3bca5cbcf789c7ce1aa221a6a4154dd7c3917/

Instead of passing TARGET_ABI or TARGET_CFLAGS for libstdc++ in
--enable-cxx-flags parameter backport the patch that fixes propagation
of CXXFLAGS_FOR_TARGET to CXXFLAGS.

This issue is fixed in gcc-5.x

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2016-03-15 23:14:18 +01:00
arch arch/arm: add the cortex A17 variant supported by gcc 5.x 2016-02-22 09:31:42 +01:00
board configs/qemu: bump to the latest linux versions 2016-03-14 22:14:56 +01:00
boot uboot: remove deprecated BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR option 2016-03-15 22:47:47 +01:00
configs configs: pandaboard: bump kernel to 4.5 2016-03-15 23:06:20 +01:00
docs docs/manual: document format for specifying licenses 2016-03-06 21:52:57 +01:00
fs fs/common: generate users before setting permissions 2016-02-01 07:25:36 +01:00
linux linux: bump default to version 4.5 2016-03-14 13:12:46 +01:00
package gcc: preserve CXXFLAGS_FOR_TARGET 2016-03-15 23:14:18 +01:00
support Update for 2016.02 2016-03-01 21:47:30 +01:00
system skeleton: Recreate /var/run symlink 2016-02-11 23:20:38 +01:00
toolchain toolchain: add 4.5.x choice for headers 2016-03-14 13:11:59 +01:00
.defconfig arch: kill avr32 2015-02-14 17:39:50 +01:00
.gitignore update gitignore 2013-05-04 12:41:55 +02:00
CHANGES Update for 2016.02 2016-03-01 21:47:30 +01:00
Config.in Config.in: Add BR2_DEPRECATED_SINCE_2016_05 2016-02-23 22:56:26 +01:00
Config.in.legacy uboot: remove deprecated BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR option 2016-03-15 22:47:47 +01:00
COPYING COPYING: add exception about patch licensing 2016-02-26 19:50:13 +01:00
Makefile core: use $(CURDIR) to set TOPDIR 2016-03-10 23:49:46 +01:00
Makefile.legacy Makefile.legacy: fix recursive invocation with BUILDROOT_DL_DIR and _CONFIG 2014-02-11 08:14:57 +01:00
README README: add reference to submitting-patches 2016-02-01 19:16:08 +01:00

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
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on Freenode IRC.

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