Make shared object compilation more portable, because there are vendor

compilers out there (for instance UnixWare's cc) which don't honor the `-o'
option when used in combination with the `-c' option. They always create xx.o
for xx.c and just pass `-o' to the linker phase (which doesn't exist when `-c'
is used :-( ). This way shared objects are even supported under UnixWare.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80635 13f79535-47bb-0310-9956-ffa450edef68