Fix assembler code display with gdb 7.1 and later.

The syntax of the 'disassemble' command changed in gdb 7.1: it now requires
a comma between the two address expressions. Previously, KDbg showed an
error message instead of assembler code when a plus in front of a source
code line was clicked.

Reported by Gerfried Essler.

This reverts part of the previous commit.
(cherry picked from upstream commit b6ee6a035abe41f7c0d59fbd830e895b6edeb748)

kdbg/gdbdriver.cpp

@@ -282,6 +282,38 @@ void GdbDriver::commandFinished(CmdQueueItem* cmd)
 	return;
     }
 
+    switch (cmd->m_cmd) {
+    case DCinitialize:
+	{
+	    /*
+	     * Check for GDB 7.1 or later; the syntax for the disassemble
+	     * command has changed.
+	     * This RE picks the last version number in the first line,
+	     * because at least OpenSUSE writes its own version number
+	     * in the first line (but before GDB's version number).
+	     */
+	    TQRegExp re(
+		" "			// must be preceded by space
+		"[(]?"			// SLES 10 embeds in parentheses
+		"(\\d+)\\.(\\d+)"	// major, minor
+		"[^ ]*\\n"		// no space until end of line
+		);
+	    int pos = re.search(m_output);
+	    const char* disass = "disassemble %s %s\n";
+	    if (pos >= 0) {
+		int major = re.cap(1).toInt();
+		int minor = re.cap(2).toInt();
+		if (major > 7 || (major == 7 && minor >= 1))
+		{
+		    disass = "disassemble %s, %s\n";
+		}
+	    }
+	    cmds[DCdisassemble].fmt = disass;
+	}
+	break;
+    default:;
+    }
+
     /* ok, the command is ready */
     emit commandReceived(cmd, m_output);