stdalign: port to tcc + glibc * lib/stdalign.in.h (_Alignas): Do not define using __attribute__ if __attribute__ is defined as a macro, as __attribute__ surely a no-op in that case and this is an area where __attribute__ cannot simply be ignored. * m4/stdalign.m4 (gl_STDALIGN_H): Include <stdint.h> so that it #defines __attribute__(x) to nothing on glibc-based systems when non-GNU-C-compatible compilers are used. This exposes a bug in Tiny C Compiler 0.9.27’s implementation of _Alignas on glibc platforms.