Autoconf check for program and fail if not found

Question

I\'m creating a project and using GNU Autoconf tools to do the configuring and making. I\'ve set up all my library checking and header file checking but can\'t seem to figure ou

Answer 1

I found this to be the shortest approach.

AC_CHECK_PROG(FFMPEG_CHECK,ffmpeg,yes)
AS_IF([test x"$FFMPEG_CHECK" != x"yes"], [AC_MSG_ERROR([Please install ffmpeg before configuring.])])