Usability but not presence

This, of course, …

checking foo.h usability... yes
checking foo.h presence... no
configure: WARNING: foo.h: accepted by the compiler, rejected by the preprocessor!
configure: WARNING: foo.h: proceeding with the compiler's result

… happens when your sets CFLAGS where it ought to have set CPPFLAGS.

0 thoughts on “Usability but not presence

  1. Andrew A. Gill

    Sigh. I’m currently hunting a bug in MPlayer which causes the program
    to crash on SIGFPE when trying to play FLAC or MP3. I have quite a few
    one-line fixes for MPlayer. Kinda pisses me off. I feel for you.

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