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136c9b2a1e
Since upstream commit bb1d35dc1767 [1] (which is part of the bump to
version 1.4.60), configure.ac no longer checks for a specific C
standard. It will therefore use the "default" standard. With autoconf
2.69 (which is what is used to generate the configure script in the
tarball), the default standard is C89, which requires no option to be
passed to the compiler. However, that means that older compilers, e.g.
GCC 4.8, will indeed use C89 and not C99. This leads to the following
error.
array.c:140:2: error: 'for' loop initial declarations are only allowed in C99 mode
for (uint32_t i = 0; i < sz; ++i) {
^
In autoconf 2.71 (which is used by Buildroot), the default standard has
changed: it is now C11 if available, C99 failing that, and finally fall
back to C89. Since GCC 4.8 (and later) support C11, that's what will be
selected, so C99 is allowed as well. Thus, running autoreconf fixes the
build.
The issue was reported upstream [2].
Fixes:
- http://autobuild.buildroot.org/results/0349d8fed35b0766796dd9ba3b8de6ff8bd68fe7
[1] bb1d35dc17
[2] https://redmine.lighttpd.net/issues/3116
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
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