header name, a delimiter (e.g., colon) and a string of characters. A line break can be inserted in the value section and continued on the next line by inserting a whitespace character (e.g., tab or space). The
RFC 2046 Media Types November 1996 number=1; total=2 X-Weird-Header-1: Bar X-Weird-Header-2: Hello Message-ID: <anotherid@foo.com> Subject: Audio mail MIME-Version: 1.0 Content-type: audio/basic Content-transfer-encoding: base64 ... first half of encoded audio data goes here ... ...
m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, [m4_warning([this file was generated for autoconf 2.69. You have another version of autoconf. It may work, but is not guaranteed to. If you have problems, you may need to regenerate the build system entirely. ...