.SH ENVIRONMENT VARIABLES
Some more or less useful environment variables are evaluated by xca
.TP
.B XCA_NO_GUI=1
Do not start the graphical user interface forcefully. Same as \fB--no-gui\fP
argument. If both were not given, XCA tries to be smart and looks
at the other arguments to judge whether to start the GUI or not.
.TP
.B XCA_DEBUG=<pattern>
The environment variable
.B XCA_DEBUG
controls the dynamic debugging. The format is a comma separate list of pattern.
Each pattern is: \fBall|[-]<function>|[-]<filename>:<firstline>[-<lastline>]\fP
A leading dash skips the match. The \fIfirstline\fR and \fIlastline\fR may be
empty and will be replaced by the first and last line of the file.
If \fI-<lastline>\fR is omitted then only the exact line number of
\fIlastline\fR is matched.
.br
Example: \fIXCA_DEBUG=all,-timerEvent\fR Log everything but skip the
annoying timerEvent messages.
.br
Example: \fIXCA_DEBUG=pki_base.cpp:100-,-pki_base.cpp:340\fR Log pki_base
Messages from line 100 up to the last line, except line 340.

.TP
.B XCA_ABORT_ON_WARNING=1
Developer option to crash into debugger in case of
a warning-level log message.
Documented for completeness. Not useful for non-developers
.TP
.B XCA_PORTABLE=1
Force the windows portable mode.
Documented for completeness. Not useful for non-developers
.TP
.B XCA_ARGUMENTS=<man|rst|completion>
Outputs the commandline arguments in man-page nroff, sphinx rst or as
oneline list for command-completion to automatically update the documentation
if new arguments are added.
.TP
.B XCA_QPSQL_OPTIONS XCA_QMYSQL_OPTIONS XCA_QODBC_OPTIONS
Additional connection options for the SQL database drivers as described in
https://doc.qt.io/qt-5/qsqldatabase.html#setConnectOptions like
\fIQPSQL_OPTIONS=requiressl=1\fR

.SH SEE ALSO
A more detailed HTML documentation can be found in the doc directory,
in the "Help" menu of the application or on
https://hohnstaedt.de/documentation

.SH AUTHOR
This manual page was written by Christian Hohnstaedt <christian@hohnstaedt.de>