Peter Korsgaard
f19d98eee2
Fixes https://autobuild.buildroot.net/results/7c3556ec16c28b61bda62156a3bee858cf80cd1c/ The source code uses empty argument prototypes, which changed behaviour in C23 (default in gcc-15): https://gcc.gnu.org/gcc-15/porting_to.html#c23-fn-decls-without-parameters Causing build issues. Latest upstream release is from 2010, so work around it by forcing gnu99 mode instead. Signed-off-by: Peter Korsgaard <peter@korsgaard.com>