Use preprocessor to check for AI_V4MAPPED, AI_ALL and AI_IDN #13513
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The preprocessor macros defined in some header can be checked, using Autoconf's AC_COMPILE_IFELSE, or with simpler AC_CHECK_DECL(S), or even better and simpler directly in the C code.
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The preprocessor macros defined in some header can be checked, using Autoconf's AC_COMPILE_IFELSE, or with simpler AC_CHECK_DECL(S), or even better and simpler directly in the C code.
This sounds ok?