Created attachment 182697 [details] [review]
Patch enabling automatic link targets from taglists

I have a C project with multiple Doxygen projects and tagfiles linking each other (http://gitorious.org/sofia-sip/sofia-sip).

Creating autolinks or explicit refs to C stuff, like functions, typedefs or macros between projects does not work. The refs to sections etc. work nice. 

The taglist links has been broken quite some time now (from some 1.3.* onwards). If my memory serves me right, I promised Dimitri to provide a patch at that time. 

I've now digged the cause and it seems to me that the findMembersWithSpecificName() in util.cpp has checks for FileDef or GroupDef linkability, which fail if the target is read from the a tagfile.  I guess that is because the taglist just gives link directly to the documentation.

If I simply remove the check, the refs and links work.

I have no idea if this breaks something else.

--- doxygen-1.7.1-orig/src/util.cpp	2010-06-23 14:25:36.000000000 +0300
+++ doxygen-1.7.1/src/util.cpp	2011-03-04 22:18:33.507235996 +0200
@@ -3656,18 +3656,18 @@
                                         bool checkCV,
                                         QList<MemberDef> &members)
 {
-  //printf("  Function with global scope name `%s' args=`%s'\n",
-  //       mn->memberName(),args);
+  ///printf("  Function with global scope name `%s' args=`%s'\n",
+  // mn->memberName(),args);
   MemberListIterator mli(*mn);
   MemberDef *md;
   for (mli.toFirst();(md=mli.current());++mli)
   {
     FileDef  *fd=md->getFileDef();
-    GroupDef *gd=md->getGroupDef();
+    //GroupDef *gd=md->getGroupDef();
     //printf("  md->name()=`%s' md->args=`%s' fd=%p gd=%p current=%p\n",
-    //    md->name().data(),args,fd,gd,currentFile);
-    if (
-        ((gd && gd->isLinkable()) || (fd && fd->isLinkable())) && 
+    // md->name().data(),args,fd,gd,currentFile);
+    if (/*
+	  ((gd && gd->isLinkable()) || (fd && fd->isLinkable())) && */
         md->getNamespaceDef()==0 && md->isLinkable() &&
         (!checkStatics || (!md->isStatic() && !md->isDefine()) || 
          currentFile==0 || fd==currentFile) // statics must appear in the same file

Here is a sample page generated with plain doxygen (looks like slightly older one than 1.7.1):

http://sofia-sip.sourceforge.net/refdocs/nua/nua__api__overview.html

and here with patched one:

http://sofia-sip.org/~ppessi/1.12.10pre11rc1/nua/nua_api_overview.html