several webapp ebuilds call webapp-detect of any function. This tries to access files provided by apache, however if these files aren't present the code prints error messages. But ebuild-code outside functions should not print anything, so if it's not possible to move webapp-detect inside a function please make that function silent.
--- webapp-apache.eclass.orig 2003-11-21 08:10:15.000000000 +0100 +++ webapp-apache.eclass 2003-11-24 23:48:47.000000000 +0100 @@ -62,7 +62,7 @@ # temporary fix for webapps HTTPD_ROOT="/var/www/localhost/htdocs/" keepdir "$HTTPD_ROOT" - fowners "$HTTPD_USER"."$HTTPD_GROUP" "$HTTPD_ROOT" + fowners "$HTTPD_USER":"$HTTPD_GROUP" "$HTTPD_ROOT" fperms 755 "$HTTPD_ROOT" }
Done.