+ [Program, with arguments, to provide MIME type.])])])
+
+dnl The OpenBSD 5.4 file (4.24) reports --mime-encoding of text
+dnl files as "binary". Detect that by only accepting "us-ascii".
+AC_DEFUN([NMH_MIMEENCODINGPROC],
+[AC_CACHE_CHECK([for a program to provide a MIME encoding string],
+ [nmh_cv_mimeencoding_proc],
+ [nmh_cv_mimeencoding_proc=
+ for mprog in 'file --brief --dereference --mime-encoding' \
+ 'file --dereference --mime-encoding' \
+ 'file --brief --mime-encoding' \
+ 'file --mime-encoding'
+ do
+ AS_IF([$mprog "${srcdir}/DATE" > /dev/null 2>&1],
+ AS_CASE([`$mprog "${srcdir}/DATE"`],
+ [us-ascii],[nmh_cv_mimeencoding_proc="$mprog"; break]))
+ done])
+AS_IF([test X"$nmh_cv_mimeencoding_proc" != X],
+ [mimeencoding_proc="\"${nmh_cv_mimeencoding_proc}\""
+ AC_DEFINE_UNQUOTED([MIMEENCODINGPROC], [$mimeencoding_proc],
+ [Program, with arguments, to provide MIME encoding.])])])