Modular X does not use /usr/X11R6 anymore. As such, the binaries once supplied in /usr/X11R6/bin are now located in /usr/bin. This applies to all modular X binaries, including applications like mkfontdir, mkfontscale, ucs2any, bdftruncate, etc. Most of the font rpm packages in the distribution invoke one or more of these font utilities in their rpm processing scripts. Any of these scripts which let the shell search the PATH for the executables, or use "MKFONTDIR=$(which mkfontdir)" and then invoke $MKFONTDIR instead of hard coding a path, should continue to work with modular X without changes. Scripts which hard code the path to mkfontdir, mkfontscale, or other binaries found in /usr/X11R6/bin in rpm scripts, or in %build or %install sections of spec files, or even in Makefiles or other build or runtime scripts, etc. - should be updated to do one of the following: 1) Use "which" to find the location of the binary, and store it in a variable, then invoke the app using the variable instead. or 2) Change the code to rely on the shell's PATH, if that makes sense for the particular case, and does not create a security issue or other problem. or 3) Hard code several paths to check for the binary, within the script/application, and have it check them all. ie: Check for /usr/bin/mkfontdir, and fallback to /usr/X11R6/bin/mkfontdir, etc. In addition to this, many rpm spec files include dependencies on hard coded paths to executable files like mkfontdir et al. For example, many spec files contain: Requires: /usr/X11R6/bin/mkfontdir or similar, since the application has moved from package to package over the years. In order to permanently solve this problem, I have added virtual "Provides: mkfontdir mkfontscale ucs2any bdftruncate" to the modular X package which provides these utilities. I have also added the same Provides to the monolithic xorg-x11 which was built in rawhide tonight. Future Fedora Core 3 and 4 xorg-x11 updates will also add these virtual provides. Please update your packages to use: BuildRequires: mkfontdir and/or Requires: mkfontdir wherever appropriate. By making these changes to your rpm spec files, Makefiles, etc., your packages will become "future-proofed" to whatever currently unforseen changes might occur in X packaging a year or more down the line. By including virtual provides in our next set of updates, it will also make it a bit easier to keep compatiblity with existing OS releases that have been updated to the latest updates, once we release them. Hopefully these changes will help to make packagers lives easier in the future, by never having to make similar changes ever again, so long as everyone follows the above recommendations. This email has been sent to fedora-devel-list, and the primary Red Hat internal development list. If anyone would like to see it posted to other lists as well, please forward this email to any other list that you feel the information would be useful to. Thanks in advance. TTYL -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list