riscos stuff is part of dist, not make all
Rename input members, so they don't get redefined
AIX ok
Better handle compilers that don't like spaces before cpp directives, pt1
Work without setenv
vsnprintf may need stdarg
Fail if neither setenv nor positional arguments
Make export test typo
Work without stdint.h, if inttypes.h is around
forgot to update sq_def
Test if pread works at runtime
Screw compilers that can't handle indented #defines! What is this, 1968?
Add HP-UX
Two dots confuses some OSes, switch from swap.h.inc to swap.hinc
Include vsnprintf
Add OpenVMS