<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Morning.<div><br></div><div>This is a minimal example (minex):</div><div><br></div><div><div>===== 8>< =====</div><div>\documentclass{scrlttr2}</div><div>%%----------------------------------------------------------------</div><div>\KOMAoptions{twoside=semi}% <= Alternative 1</div><div>%%----------------------------------------------------------------</div><div>\usepackage{scrpage2}</div><div>\pagestyle{scrheadings}</div><div> \lohead{\today{}}</div><div> \rohead{Friedrich Vosberg}</div><div> \lehead{\today{}}</div><div> \rehead{Friedrich Vosberg}</div><div>%%----------------------------------------------------------------</div><div>%\KOMAoptions{twoside=semi}% <= Alternative 2</div><div>%%----------------------------------------------------------------</div><div>\begin{document}</div><div>\begin{letter}{Max}</div><div>\opening{Hallo Max}</div><div>ein Text</div><div>\par</div><div>\pagebreak</div><div>mehr Text\par</div><div>\pagebreak</div><div>noch mehr Text</div><div>\closing{Ciao}</div><div>\end{letter}</div><div>\begin{letter}{Moritz}</div><div>\opening{Hallo Moritz}</div><div>Text</div><div>\closing{Ciao}</div><div>\end{letter}</div><div>\end{document}</div><div>===== ><8 =====</div><div><br></div><div>If in this minex the line</div><div><br></div><div> \KOMAoptions{twoside=semi}</div><div><br></div><div>is given *before* the section</div><div><br></div><div> \usepackage{scr}...</div><div><br></div><div>everything works fine.</div><div><br></div><div>But if</div><div><br></div><div> \KOMAoptions{twoside=semi}</div><div><br></div><div>is given after the section</div><div><br></div><div> \usepackage{scr}...</div><div><br></div><div>all odd pages are typeset empty. That's not what I want.</div><div><br></div><div>In »real life« the definitions for the page layout are given in a lco file loaded at the begin of the TEX file</div><div><br></div><div> \documentclass[myletterclass]{scrlttr}</div><div><br></div><div>but the package that contains the option twoside=semi I do need only occasionally and therefore it is invoked later in the preamble by \usepackage{mypackage}. Therefore I do need a way to safeguard the definitions given in myletterclass regardless of whether mypackage is invoked or not.</div><div><br></div><div>How can this be achieved?</div><div><br></div><div>Kind regards, Friedrich</div><div>
<span class="Apple-style-span" style="font-size: 11px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>--</div><div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><font class="Apple-style-span" face="Verdana"><font class="Apple-style-span" color="#666666">»Die Naturwissenschaft braucht der Mensch zum Erkennen, den Glauben zum Handeln.«<i> (Max Planck)</i></font></font><br></div></div></div></div></span>
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