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On Apr 14 19:00, Takashi Yano wrote: > Hi Corinna, > > On Thu, 14 Apr 2016 09:52:05 +0200 > Corinna Vinschen wrote: > > If it's that simple, why does my STC (or a simple variation thereof) not > > complain? > > It is because optimizer removes the function call. > > Try: > > $ cat > m.cc <<EOF > #include <cstdio> > #include <cmath> > > int main() > { > long double x, y; > scanf("%Lf %Lf", &x, &y); > printf("%Lf\n", atan2l(x,y)); > return 0; > } > EOF > $ g++ m.cc -lm Thanks! So that's why my testcase didn't work :} This is actually a problem in libstdc++-v3. On platforms missing certain long double functions libstdc++-v3 is built with stub functions using the same name. Jon, any chance to rebuild the gcc packages ASAP? Thanks, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat
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