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| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version

## save-source-level-debug-info-switch

As with most compiler switch variables, the value of this variable can be `t`, `nil`, or a function object that accepts five arguments and returns `t` or `nil`. The arguments passed to the function will be the values of the safety, space, speed, debug, and compilation-speed optimization qualities, in that order. `nil` is equivalent to a function that always returns `nil` and `t` to a function that always returns `t`. When the value is a function and we say `t` (or true) or `nil` (or false) in the text below, we mean that the function returns, respectively, `t` or `nil`.

Bound to a function which, given safety, space, speed, debug, and compilation-speed, returns `t` if the compiler should save information in fasl files useful for source-level debugging (see The source stepper in debugging.htm) and for coverage analysis (see with-coverage).

Initially true if debug is greater than 2.

Note: when this switch is true, the compiler uses more stack. If you have problem compiling because of stack overflows, evaluate (setq comp:save-source-level-debug-info-switch nil) to suppress collection of the data.

See compiling.htm for information on the compiler.

Copyright (c) 1998-2022, Franz Inc. Lafayette, CA., USA. All rights reserved.
This page was not revised from the 10.0 page.
Created 2019.8.20.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version