Bail out if the reg key is empty. This prevents us from writing
tree8e6dc31983e260ab28ab49af07fc5beb13716b69
-rw-r--r-- 73 .cvsignore
-rw-r--r-- 1869 ANNOUNCE
-rw-r--r-- 9948 AUTHORS
-rw-r--r-- 954 BUGS
-rw-r--r-- 26428 COPYING.LIB
-rw-r--r-- 4294813 ChangeLog
-rw-r--r-- 20837 DEVELOPERS-HINTS
-rw-r--r-- 822 LICENSE
-rw-r--r-- 1324 LICENSE.OLD
-rw-r--r-- 7684 Make.rules.in
-rw-r--r-- 4424 Makefile.in
-rw-r--r-- 7402 README
-rw-r--r-- 22 VERSION
-rw-r--r-- 4115 aclocal.m4
-rwxr-xr-x 644183 configure
-rw-r--r-- 53911 configure.ac
drwxr-xr-x - dlls
drwxr-xr-x - documentation
drwxr-xr-x - fonts
drwxr-xr-x - include
drwxr-xr-x - libs
drwxr-xr-x - loader
drwxr-xr-x - programs
drwxr-xr-x - server
drwxr-xr-x - tools