Building with GCC 14 fails at the configure step with:
./configure: error: libatomic_ops library was not found.
The error is not caused by a missing library, but by an unrelated
"incompatible pointer type" error in the test program:
...
checking for atomic_ops library
objs/autotest.c: In function 'main':
objs/autotest.c:9:48: error: passing argument 1 of 'AO_compare_and_swap' from incompatible pointer type [-Wincompatible-pointer-types]
This used to be a warning, but it is an error since GCC 14.[1]
Fix this by patching the test program in order to use the correct
pointer types.
Fixes: http://autobuild.buildroot.net/results/a3d/a3d8c6fd631b31e272e4d8cc6c3318f2e4151882
[1] https://gcc.gnu.org/gcc-14/porting_to.html#incompatible-pointer-types
Signed-off-by: Edgar Bonet <bonet@grenoble.cnrs.fr>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit
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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