[Bug libstdc++/97088] 17_intro/names.cc and experimental/names.cc fail with --disable-libstdcxx-pch

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97088

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
<asm/types.h> also has this on ppc linux:

typedef struct { 
        __u32 u[4];
} __attribute__((aligned(16))) __vector128;