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<wctype.h> in glibc 2.1 has --- ... typedef unsigned int wint_t ... # define iswspace(wc) \ (__builtin_constant_p (wc) && (wc) >= L'\0' && (wc) <= L'\xff' \ ? (int) (__ctype32_b[wc] & _ISwspace) : iswspace (wc)) --- With -Werror in libstdc++ v3, I got cc1plus: warnings being treated as errors In file included from /work/gnu/src/gcc-3.0/egcs/libstdc++-v3/src/locale.cc:41: /work/gnu/src/gcc-3.0/egcs/libstdc++-v3/bits/std_cwctype.h: In function `int std::_S_iswspace_helper (unsigned int)': /work/gnu/src/gcc-3.0/egcs/libstdc++-v3/bits/std_cwctype.h:65: warning: comparison of unsigned expression >= 0 is always true As the result, compilation failed. H.J.
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