Hello,

the removal of l3num causes make sourcedoc to fail because l3num is still referenced in l3precom.dtx. Patch:

Index: l3in2e/l3precom.dtx
===================================================================
--- l3in2e/l3precom.dtx	(revision 1792)
+++ l3in2e/l3precom.dtx	(working copy)
@@ -181,7 +181,6 @@
 %    \begin{macrocode}
 %<package>\ProvidesExplPackage
 %<package>  {\filename}{\filedate}{\fileversion}{\filedescription}
-%<package>\RequirePackage{l3num}
 %<package>\RequirePackage{l3io}
 %<package>\RequirePackage{l3seq}
 %<package>\RequirePackage{l3int}

Regards,
Philipp