Hello, Sergey, Thanks for the patch! LGTM with a minor comment. Sergey On 6/8/26 13:23, Sergey Kaplun wrote: > On CentOS 7 GCC has no std=c99 by default. This leads to compilation > warnings and errors for ‘for’ loop initial declarations. This patch > fixes that by declaring the variable out of the loop body. > --- > > Branch:https://github.com/tarantool/luajit/tree/skaplun/gh-noticket-fix-tests-old-gcc > CI failure:https://github.com/tarantool/luajit/actions/runs/27124968515/job/80063067169#step:6:10593 > > test/tarantool-tests/ffi-ccall/libfficcall.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/test/tarantool-tests/ffi-ccall/libfficcall.c b/test/tarantool-tests/ffi-ccall/libfficcall.c > index 2145b556..129bc75d 100644 > --- a/test/tarantool-tests/ffi-ccall/libfficcall.c > +++ b/test/tarantool-tests/ffi-ccall/libfficcall.c > @@ -307,7 +307,8 @@ int test_2_large_agg_a16(int x, large_agg_a16 s1, large_agg_a16 s2) > const int *v1 = s1.v; > const int *v2 = s2.v; > int sum = x; > - for (int i = 0; i < lengthof(s1.v); i++) { > + int i = 0; > + for (; i < lengthof(s1.v); i++) { isn't better declaring outside the loop and define in a loop? int i; for (i = 0; i < lengthof(s1.v); i++) { It looks more familiar this way. Feel free to ignore. > sum += v1[i] + v2[i]; > } > return sum;