<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Folks,<div><br></div><div>This is an expanded version of a message I sent earlier. Installing Snow Leopard may remove TeX from your PATH, as Adam Maxwell pointed out, and the message now explains how to get it back.</div><div><br></div><div>--------</div><div><br></div><div><div>Since we are close to the release date of Snow Leopard, let me list a small number of very minor TeX issues you might run into when upgrading, and describe fixes. Aside from these issues, TeX and TeX programs and utilities run fine. (These minor issues are fixed in MacTeX-2009, now undergoing testing.)<br><br></div><div>In Snow Leopard, Apple's own applications run in 64 bits on machines with 64 bit processors. So System Preferences runs in 64 bits and thus requires 64 bit plugins. The TeX Distribution Preference Pane in MacTeX-2008 has only 32 bit binaries (the version in MacTeX-2009 has both 32 and 64 bit binaries).</div><div>However, System Preferences in Snow Leopard understands this problem, and when it finds a 32 bit pane it puts up a dialog saying "to run this Pane, System Preferences must restart". When you click OK, it restarts in 32 bit mode and runs the Pane. So the problem is "cosmetic only."<br><br>Apple changed the configuration of "man" slightly, so TeX man pages may not be found from a shell. But this is also easily fixed. Go to the TeX binary directory and create a symbolic link named "man" to the man pages. Thus the following commands will fix the problem:<br><br><span class="Apple-tab-span" style="white-space: pre; "> </span>cd /usr/local/texlive/2008/bin/universal-darwin<br><span class="Apple-tab-span" style="white-space: pre; "> </span>sudo ln -s ../../texmf/doc/man man<br><br></div><div>When you upgrade to Snow Leopard in the standard way, TeX Live 2008 and Ghostscript should be preserved, but it is possible that the symbolic link /usr/texbin will be destroyed. If your front end cannot find TeX, recreate this link as follows:</div><div><br></div><div><span class="Apple-tab-span" style="white-space: pre; "> </span>cd /usr<br><span class="Apple-tab-span" style="white-space: pre; "> </span>sudo ln -s ../Library/TeX/Distributions/.DefaultTeX/Contents/Programs/i386 texbin</div><div><br></div><div>Upgrading to Snow Leopard may also remove /usr/texbin from your default PATH. To fix that, create a text file named TeX with contents</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>/usr/texbin</div><div><br></div><div>and then move this file to /etc/paths.d</div><div><br></div><div>One way to create the file is to change directory to your Desktop in Terminal and then use "cat" as follows:</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>cd</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>cd Desktop</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>cat > TeX</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>/usr/texbin</div><div><br></div><div>and then type control-D to complete the command. Now give this file read-write permission for everyone and move it to /etc/paths.d as follows</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>chmod 666 TeX</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>sudo mv TeX /etc/paths.d</div><div><br></div><div>If you run into some other difficulty I have forgotten, please write this group. After we collect such "Friday, Aug 28 Experiences", we'll write an addendum to the MacTeX web page if necessary.</div><div><br>Dick Koch<br><a href="mailto:koch@math.uoregon.edu">koch@math.uoregon.edu</a></div></div></body></html>