-extern char *c_compute_program (struct compile_instance *inst,
- const char *input,
- struct gdbarch *gdbarch,
- const struct block *expr_block,
- CORE_ADDR expr_pc);
+extern std::string c_compute_program (struct compile_instance *inst,
+ const char *input,
+ struct gdbarch *gdbarch,
+ const struct block *expr_block,
+ CORE_ADDR expr_pc);