Takashi, Here is the patch for alsa-utils not being able to compile against alsa-lib if certain features were disabled in the library. It uses AC_CHECK_HEADERS as you suggested. It disables midi or seq and alsactl (if either are disabled, since it makes use of rawmidi.h and seq.h) from the build. Bryan
<<attachment: patch-alsa-utils-no-midi.zip>>
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