Added mathsym+tcc and boost against all advice

eo/contrib/mathsym/eval/sym_compile.h

@@ -0,0 +1,36 @@
+/*	    
+ *             Copyright (C) 2005 Maarten Keijzer
+ *
+ *          This program is free software; you can redistribute it and/or modify
+ *          it under the terms of version 2 of the GNU General Public License as 
+ *          published by the Free Software Foundation. 
+ *
+ *          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
+ */
+
+#ifndef SYMCOMPILE_H_
+#define SYMCOMPILE_H_
+
+#include <vector>
+
+
+typedef double (*single_function)(const double *);
+typedef void   (*multi_function)(const double*, double*); // last argument is output
+
+/* 
+ * Important, after every call of the functions below, the function pointers of the previous
+ * call are invalidated. Sorry, but that's the way the cookie crumbles (in tcc)
+ * */
+
+single_function compile(Sym sym);
+multi_function  compile(const std::vector<Sym>& sym);
+void compile(const std::vector<Sym>& sym, std::vector<single_function>& functions);
+
+#endif