Issue getting Doxygen to document an enum in C

I have a rather odd problem with Doxygen (1.6.1 on Mac OS X Snow Leopard) in that it does not seem to document my enums no matter what I do. I am programming in C and have followed the instructions in the manual. Here is my code:

/**
 * \enum dccp_pkt_type 
 * \brief specifies the available DCCP packet types
 */

enum dccp_pkt_type
{
    DCCP_REQUEST    = 0,    /**< DCCP Request Packet */
    DCCP_RESPONSE,          /**< DCCP Response Packet */
    DCCP_DATA,              /**< DCCP Data Packet */
    DCCP_ACK,               /**< DCCP Ack Packet */
    DCCP_DATAACK,           /**< DCCP Data Ack Packet */
    DCCP_CLOSEREQ,          /**< DCCP Close Request Packet */
    DCCP_CLOSE,             /**< DCCP Close Packet */
    DCCP_RESET,             /**< DCCP Reset Packet */
    DCCP_SYNC,              /**< DCCP Sync Packet */
    DCCP_SYNCACK,           /**< DCCP Sync Ack Packet */
    DCCP_RESERVED,          /**< DCCP Reserved Packet Type - Receivers MUST
                         ig开发者_JS百科nore any packets with this type */
};

It should according to the doxygen manual produce properly documentated output but instead it produces nothing. I am most likely missing something simple, if anyone could point me in the right direction I would be grateful.

From the Doxygen manual:

Let’s repeat that, because it is often overlooked: to document global objects (functions, typedefs, enum, macros, etc), you must document the file in which they are defined. In other words, there must at least be a

/*! \file */ or a

/** @file */ line in this file.

My experience is the same using EXTRACT_ALL=NO and SHOW_INCLUDE_FILES=NO with doxygen 1.8.9.1 - global enum types were not listed nor linked even though /*! \file */ is present and the global enum is referenced by a documented compound structure.

To work around this, I ended up defining an Enumerations group:

/*! \defgroup Enumerations Public enumeration types */

and for the enum types I used \ingroup Enumerations to include the enums in the new group. Doxygen then was able to autolink from the compound structures to the enum types.

If memory serves correctly, enum documentation doesn't show up unless the file is also documented. Try adding a @file section.