b4c050e9af
When building C++ parts of gpsd (for example Qt bindings) with gcc 6.x following
failure happens, see [1]:
------------------------------>8-------------------------------
<command-line>:0:0: warning: "_LARGEFILE_SOURCE" redefined
<command-line>:0:0: note: this is the location of the previous definition
In file included from clock_gettime.c:10:0:
compiler.h: In function 'void memory_barrier()':
compiler.h:93:25: error: 'memory_order_seq_cst' was not declared in this scope
atomic_thread_fence(memory_order_seq_cst);
^~~~~~~~~~~~~~~~~~~~
compiler.h:93:25: note: suggested alternative:
In file included from .../output/host/usr/arc-buildroot-linux-uclibc/include/c++/6.2.1/atomic:41:0,
from compiler.h:75,
from clock_gettime.c:10:
.../output/host/usr/arc-buildroot-linux-uclibc/include/c++/6.2.1/bits/atomic_base.h:62:7: note: 'memory_order_seq_cst'
memory_order_seq_cst
^~~~~~~~~~~~~~~~~~~~
In file included from clock_gettime.c:10:0:
compiler.h:93:45: error: 'atomic_thread_fence' was not declared in this scope
atomic_thread_fence(memory_order_seq_cst);
^
compiler.h:93:45: note: suggested alternative:
In file included from .../output/host/usr/arc-buildroot-linux-uclibc/include/c++/6.2.1/atomic:41:0,
from compiler.h:75,
from clock_gettime.c:10:
.../output/host/usr/arc-buildroot-linux-uclibc/include/c++/6.2.1/bits/atomic_base.h:101:3: note: 'std::atomic_thread_fence'
atomic_thread_fence(memory_order __m) noexcept
^~~~~~~~~~~~~~~~~~~
scons: *** [qt-clock_gettime.os] Error 1
scons: building terminated because of errors.
------------------------------>8-------------------------------
As discussed on gpsd mailng list here [2] the only work-around as of today is to
add "-std=gnu++98" to both CFLAGS and CXXFLAGS which we implement here.
Fixes:
http://autobuild.buildroot.net/results/e8593a8ebf2f05cc93235a8129a2ba8b839d6d90
http://autobuild.buildroot.net/results/ff766f4f514c9cb4891873167f4e9b7870051883
http://autobuild.buildroot.net/results/1a4/1a4dbd9ee5e0c7255843228731beab030ca005ca
http://autobuild.buildroot.net/results/1a4/1a4dbd9ee5e0c7255843228731beab030ca005ca
and many others, see http://autobuild.buildroot.net/?reason=gpsd-3.16
[1] http://autobuild.buildroot.net/results/e85/e8593a8ebf2f05cc93235a8129a2ba8b839d6d90/build-end.log
[2] http://lists.nongnu.org/archive/html/gpsd-dev/2016-09/msg00082.html
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Bernd Kuhls <bernd.kuhls@t-online.de>
Cc: Sergio Prado <sergio.prado@e-labworks.com>
Cc: James Knight <james.knight@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
||
|---|---|---|
| arch | ||
| board | ||
| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| .defconfig | ||
| .gitignore | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| DEVELOPERS | ||
| Makefile | ||
| Makefile.legacy | ||
| 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 Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches