On Wed, Jul 1, 2020 at 4:13 AM Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx> wrote: > > On Tue, Jun 30, 2020 at 6:26 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: > > > > I can reproduce this in the following > > simple test code: > > > > > > ----------------->8---------------- > > #include <stdio.h> > > > > int main(void) > > { > > ssize_t x = 1; > > > > printf("%zd", x); > > > > return 0; > > } > > --------------->8------------------- > > That is the old implicit int rule. Try including sys/types.h or > compiling with a standard like -std=c99 for instance. > > Cheers, > Miguel Hmm, adding '#include <sys/types.h>' did not make any difference. If I add -std=c99, I get a different error. $ clang -std=c99 --target=aarch64-linux-gnu test.c test.c:5:10: error: unknown type name 'ssize_t'; did you mean 'size_t'? ssize_t x = 1; ^~~~~~~ size_t /home/masahiro/tools/clang-latest/lib/clang/11.0.0/include/stddef.h:46:23: note: 'size_t' declared here typedef __SIZE_TYPE__ size_t; ^ 1 error generated. In contrast, 'size_t' has no problem. ----------------->8---------------- #include <stdio.h> int main(void) { size_t x = 1; printf("%zu", x); return 0; } --------------->8------------------- $ clang --target=aarch64-linux-gnu test.c [ No warning ] -- Best Regards Masahiro Yamada