Introduce a workaround for Solaris' inability to deal with dtrace in static libraries.

Rerun dtrace -G on all  objects that can contan dtrace probes (also objects that are
part of static libs) before linking mysqld to produce dtrace_probes_all.o and link 
dtrace_probes_all.o with mysqld

This ugly workaround was inspired by handling dtrace using autotools.

sql/main.cc

@@ -0,0 +1,25 @@
+/* Copyright (C) 2009 Sun Microsystems, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+/* 
+  main() for mysqld.
+  Calls mysqld_main() entry point exported by sql library.
+*/
+extern int mysqld_main(int argc, char **argv);
+
+int main(int argc, char **argv)
+{
+  return mysqld_main(argc, argv);
+}