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diff --git a/winsup/doc/cygwinenv.sgml b/winsup/doc/cygwinenv.sgml deleted file mode 100644 index 8390e3e1d..000000000 --- a/winsup/doc/cygwinenv.sgml +++ /dev/null @@ -1,207 +0,0 @@ -<sect1 id="using-cygwinenv"><title>The <envar>CYGWIN</envar> environment -variable</title> - -<sect2 id="cygwinenv-implemented-options"> -<title>Implemented options</title> - -<para>The <envar>CYGWIN</envar> environment variable is used to configure -many global settings for the Cygwin runtime system. It contains the options -listed below, separated by blank characters. Many options can be turned off -by prefixing with <literal>no</literal>.</para> - -<itemizedlist mark="bullet"> - -<listitem> -<para><envar>codepage:[ansi|oem|utf8]</envar> - This option controls -which single- or multibyte character set is used for file and console -operations. Windows is using UTF-16 characters internally and this -option specifies how 8-byte character sets are converted to UTF-16 and -vice versa. The default setting is <envar>ansi</envar> which means, -conversion is based on the current ANSI codepage, typically 1252 in -many Western language versions of Windows. The name originates from the -ANSI Latin1 (ISO 8859-1) standard, used in Windows 1.0, though the -character sets have since diverged from any standard. The second -setting selects an older, DOS-based character set, containing various -line drawing and special characters. It is called <envar>oem</envar> -since it was originally encoded in the firmware of IBM PCs by original -equipment manufacturers (OEMs).</para> -<para>If you find that some characters (especially non-US or 'graphical' ones) -do not display correctly in Cygwin, you can use this option to select an -appropriate codepage. Finally, <envar>utf8</envar> treats all file names -and console characters as UTF-8 chars. Please note that, for correct -operation, you have to set the environment variable LC_CTYPE to "C-UTF-8" -for the time being. The reason is that newlib's multibyte conversion -functions require this setting.</para> -</listitem> - -<listitem> -<para><envar>(no)dosfilewarning</envar> - If set, Cygwin will warn the -first time a user uses an "MS-DOS" style path name rather than a POSIX-style -path name. Defaults to set.</para> -</listitem> - -<listitem> -<para><envar>(no)envcache</envar> - If set, environment variable -conversions (between Win32 and POSIX) are cached. Note that this may -cause problems if the mount table changes, as the cache is not invalidated -and may contain values that depend on the previous mount table -contents. Defaults to set.</para> -</listitem> - -<listitem> -<para><envar>(no)export</envar> - If set, the final values of these -settings are re-exported to the environment as <envar>CYGWIN</envar> again. -Defaults to off.</para> -</listitem> - -<listitem> -<para> -<envar>error_start:Win32filepath</envar> - if set, runs -<filename>Win32filepath</filename> when cygwin encounters a fatal error, -which is useful for debugging. <filename>Win32filepath</filename> is -usually set to the path to <command>gdb</command> or -<command>dumper</command>, for example -<filename>C:\cygwin\bin\gdb.exe</filename>. -There is no default set. -</para> -</listitem> - -<listitem> -<para><envar>forkchunk:32768</envar> - causes the <function>fork()</function> -to copy memory some number of bytes at a time, in the above example -32768 bytes (32Kb) at a time. The default is to copy as many bytes as -possible, which is preferable in most cases but may slow some older systems -down. -</para> -</listitem> - -<listitem> -<para><envar>proc_retry:n</envar> - causes the <function>fork()</function> and <function>exec*()</function> -to retry n times when a child process fails due to certain windows-specific errors. These errors usually -occur when processes are being started while a user is logging off. -</para> -</listitem> - -<listitem> -<para><envar>(no)glob[:ignorecase]</envar> - if set, command line arguments -containing UNIX-style file wildcard characters (brackets, question mark, -asterisk, escaped with \) are expanded into lists of files that match -those wildcards. -This is applicable only to programs running from a DOS command line prompt. -Default is set.</para> -<para>This option also accepts an optional <literal>[no]ignorecase</literal> modifer. -If supplied, wildcard matching is case insensitive. The default is <literal>noignorecase</literal></para> -</listitem> - -<listitem> -<para><envar>(no)reset_com</envar> - if set, serial ports are reset -to 9600-8-N-1 with no flow control when used. This is done at open -time and when handles are inherited. Defaults to set.</para> -</listitem> - -<listitem> -<para><envar>(no)server</envar> - if set, allows client applications -to use the Cygserver facilities. This option must be enabled explicitely -on the client side, otherwise your applications won't be able to use the -XSI IPC function calls (<function>msgget</function>, -<function>semget</function>, <function>shmget</function>, and friends) -successfully. These function calls will return with -<literal>ENOSYS</literal>, "Bad system call". -</para> -</listitem> - -<listitem> -<para><envar>(no)strip_title</envar> - if set, strips the directory -part off the window title, if any. Default is not set.</para> -</listitem> - -<listitem> -<para><envar>(no)title</envar> - if set, the title bar -reflects the name of the program currently running. Default is not -set.</para> -</listitem> - -<listitem> -<para><envar>(no)tty</envar> - if set, Cygwin enables extra support -(i.e., termios) for UNIX-like ttys in the Windows console. -It is not compatible with some Windows programs. -Defaults to not set, in which case the tty is opened in text mode. -Note that this has been changed such that ^D works as -expected instead of ^Z, and is settable via <command>stty</command>. -This option must be specified before starting a Cygwin shell -and it cannot be changed in the shell. It should not be set when using -other terminals (i.e., rxvt or xterm). -</para> -</listitem> - -<listitem> -<para><envar>(no)winsymlinks</envar> - if set, Cygwin creates -symlinks as Windows shortcuts with a special header and the R/O attribute -set. If not set, Cygwin creates symlinks as plain files with a magic number, -a path and the system attribute set. Defaults to not set since plain -file symlinks are faster to write and faster to read.</para> -</listitem> - -</itemizedlist> - -</sect2> - -<sect2 id="cygwinenv-removed-options"> -<title>Removed options</title> - -<para> -Some CYGWIN options have been removed in Cygwin 1.7 for one reason or another. -These removed options are listed below.</para> - -<itemizedlist mark="bullet"> - -<listitem> -<para><envar>(no)binmode</envar> - This option has been removed because -all file opens default to binary mode, unless the open mode has been specified -explicitely in the open(2) call. -</para> -</listitem> - -<listitem> -<para><envar>check_case</envar> - This option has been removed in favor of -real case sensitivity and the per-mount option "posix=[0|1]". For more -information, read the documentation in <xref linkend="mount-table"></xref> and -<xref linkend="pathnames-casesensitive"></xref>.</para> -</listitem> - -<listitem> -<para><envar>(no)ntea</envar> - This option has been removed since it -only fakes security which is considered dangerous and useless. It also -created an uncontrollably large file on FAT and was entirely useless -on FAT32.</para> -</listitem> - -<listitem> -<para><envar>(no)ntsec</envar> - This option has been removed in favor of -the per-mount option "acl"/"noacl". For more information, read the -documentation in <xref linkend="mount-table"></xref>.</para> -</listitem> - -<listitem> -<para><envar>(no)smbntsec</envar> - This option has been removed in favor of -the per-mount option "acl"/"noacl". For more information, read the -documentation in <xref linkend="mount-table"></xref>.</para> -</listitem> - -<listitem> -<para><envar>(no)transparent_exe</envar> - This option has been removed -because the behaviour it switched on is now the standard behaviour in -Cygwin.</para> -</listitem> - -<listitem> -<para><envar>(no)traverse</envar> - This option has been removed because -traverse checking is not quite correctly implemented by Microsoft and -it's behaviour is getting worse with each new OS version.</para> -</listitem> - -</itemizedlist> - -</sect2> - -</sect1> |