| dnl -------------------------------------------------------------------------- |
| dnl PA_SYM(prefix, string) |
| dnl |
| dnl Convert a (semi-) arbitrary string to a CPP symbol |
| dnl Compact underscores and convert non-C characters to underscore, |
| dnl except + which is converted to X (so C++ -> CXX). |
| dnl -------------------------------------------------------------------------- |
| AC_DEFUN([PA_SYM], |
| [m4_bpatsubsts(m4_quote(m4_toupper([$*])), |
| [,],[],[\+],[X],[[^ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+],[_],dnl |
| [^._?\(.*\)_.$],[[\1]])]) |
