Documentation Home
MySQL 9.4 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 41.2Mb
PDF (A4) - 41.3Mb
Man Pages (TGZ) - 262.8Kb
Man Pages (Zip) - 368.8Kb
Info (Gzip) - 4.1Mb
Info (Zip) - 4.1Mb


MySQL 9.4 Reference Manual  / ...  / MySQL Programs  / Installation-Related Programs  /  comp_err — Compile MySQL Error Message File

6.4.1 comp_err — Compile MySQL Error Message File

comp_err creates theerrmsg.sys file that is used bymysqld to determine the error messages to display for different error codes.comp_err normally is run automatically when MySQL is built. It compiles theerrmsg.sys file from text-format error information in MySQL source distributions:

The error information comes from themessages_to_error_log.txt andmessages_to_clients.txt files in theshare directory.

For more information about defining error messages, see the comments within those files, along with theerrmsg_readme.txt file.

comp_err also generates themysqld_error.h,mysqld_ername.h, andmysqld_errmsg.h header files.

Invokecomp_err like this:

comp_err [options]

comp_err supports the following options.

  • --help,-?

    Command-Line Format--help
    TypeBoolean
    Default Valuefalse

    Display a help message and exit.

  • --charset=dir_name,-Cdir_name

    Command-Line Format--charset
    TypeString
    Default Value../share/charsets

    The character set directory. The default is../sql/share/charsets.

  • --debug=debug_options,-#debug_options

    Command-Line Format--debug=options
    TypeString
    Default Valued:t:O,/tmp/comp_err.trace

    Write a debugging log. A typicaldebug_options string isd:t:O,file_name. The default isd:t:O,/tmp/comp_err.trace.

  • --debug-info,-T

    Command-Line Format--debug-info
    TypeBoolean
    Default Valuefalse

    Print some debugging information when the program exits.

  • --errmsg-file=file_name,-Hfile_name

    Command-Line Format--errmsg-file=name
    TypeFile name
    Default Valuemysqld_errmsg.h

    The name of the error message file. The default ismysqld_errmsg.h.

  • --header-file=file_name,-Hfile_name

    Command-Line Format--header-file=name
    TypeFile name
    Default Valuemysqld_error.h

    The name of the error header file. The default ismysqld_error.h.

  • --in-file-errlog=file_name,-efile_name

    Command-Line Format--in-file-errlog
    TypeFile name
    Default Value../share/messages_to_error_log.txt

    The name of the input file that defines error messages intended to be written to the error log. The default is../share/messages_to_error_log.txt.

  • --in-file-toclient=file_name,-cfile_name

    Command-Line Format--in-file-toclient=path
    TypeFile name
    Default Value../share/messages_to_clients.txt

    The name of the input file that defines error messages intended to be written to clients. The default is../share/messages_to_clients.txt.

  • --name-file=file_name,-Nfile_name

    Command-Line Format--name-file=name
    TypeFile name
    Default Valuemysqld_ername.h

    The name of the error name file. The default ismysqld_ername.h.

  • --out-dir=dir_name,-Ddir_name

    Command-Line Format--out-dir=path
    TypeString
    Default Value../share/

    The name of the output base directory. The default is../sql/share/.

  • --out-file=file_name,-Ofile_name

    Command-Line Format--out-file=name
    TypeFile name
    Default Valueerrmsg.sys

    The name of the output file. The default iserrmsg.sys.

  • --version,-V

    Command-Line Format--version
    TypeBoolean
    Default Valuefalse

    Display version information and exit.