+### check for file magic support (currently optional)
+AC_CHECK_HEADERS(magic.h,
+ [AC_CHECK_LIB(magic, magic_open, [LIBS="$LIBS -lmagic"],
+ LYX_WARNING([Cannot find limagic. Please check that the libmagic library
+ is correctly installed on your system.
+ Falling back to builtin file format detection.]))],
+ [LYX_WARNING([Cannot find magic.h. Please check that the libmagic library
+ is correctly installed on your system.
+ Falling back to builtin file format detection.])])
+