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On 01 Jan 2015 08:03, Martin Lambers wrote: > I recently changed two programs to use the AI_IDN flag for > getaddrinfo() instead of using libidn. > > Users reported runtime failure (EAI_BADFLAGS) on systems where glibc > was build without libidn support. > > On these systems, AI_IDN was defined nevertheless -- is this intended > behaviour? If so, then #ifdef AI_IDN is not enough; what is the > recommended way to check if AI_IDN actually works? what version of glibc exactly ? my reading of the git history is that since AI_IDN was added to the header for 2.4, glibc has unconditionally supported it. -mike
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