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(dvips.info)Debug options

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Debug options
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  The `-d' flag to Dvips helps in tracking down certain errors.  The
parameter to this flag is an integer that tells what errors are
currently being tracked.  To track a certain class of debug messages,
simply provide the appropriate number given below; if you wish to track
multiple classes, sum the numbers of the classes you wish to track.  To
track all classes, you can use `-1'.  Another useful value is `3650',
which tracks everything having to do with file searching and opening.

  Some of these debugging options are actually provided by Kpathsea
(Note: Debugging.).

  The classes are:
1
     specials

2
     paths

4
     fonts

8
     pages

16
     headers

32
     font compression

64
     files

128
     config files

256
     Partial Type 1 font encoding vectors

512
     Partial Type 1 subr calls

1024
     Kpathsea `stat' calls

2048
     Kpathsea hash table lookups

4096
     Kpathsea path element expansion

8192
     Kpathsea path searches