Hi Gustavo,
I am also running Ubuntu on PowerPC8 LittleEndian.
I believe the reason I'm seeing the issue is that I'm building with clang/LLVM rather rather than installing the version compiled with gcc. clang/LLVM is defining both __POWERPC__ and __ppc__:
$ clang -dM -E -x c /dev/null | grep __POWERPC__ #define __POWERPC__ 1 $ clang -dM -E -x c /dev/null grep __ppc__ #define __ppc__ 1
However, I suspect that based on your gcc preprocessor defines, which specify both __powerpc__ and __PPC__, but not __POWERPC__ or __ppc__, the reason you're not seeing an issue is that you're falling through to the else case:
src/luaconf.h:
<snip>
#elif defined(__POWERPC__) || defined(__ppc__) /* }{ */
#define LUA_IEEE754TRICK
#define LUA_IEEEENDIAN 1
#else /* }{ */
/* assume IEEE754 and a 32-bit integer type */
#define LUA_IEEE754TRICK
#endif /* } */
</snip>
Since the Open Power ABI Specification only specifies __powerpc__ and __PPC__, in addition to adding a check for endianness,
src/luaconf.h:
<snip>
#elif defined(__POWERPC__) || defined(__ppc__) /* }{ */
</snip>
should be:
<snip>
#elif defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) /* }{ */
</snip>
Thanks,
Liz
