Add an additional "dummy" target to the "$(LIB)" target in generated

modules/xxx/Makefile's to avoid problems with SVR4 Make under "full-DSO"
situation (no libxxx.a built, only mod_xxx.so's) where LIB and OBJS are empty.

Submitted by: Ralf S. Engelschall, Dean Gaudet, Martin Kraemer


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81518 13f79535-47bb-0310-9956-ffa450edef68