roundup not portable (CVS 02/10/01)

[Tim Rice]

SCO has no roundup()
...
cc -o ssh ssh.o sshconnect.o sshconnect1.o sshconnect2.o log-client.o readconf.o
 clientloop.o -L. -Lopenbsd-compat/  -L/usr/local/lib -L/usr/local/ssl/lib -L/us
r/local/ssl -lssh -lopenbsd-compat -lwrap -lcrypto -lz -lgen  -lprot -lx -ltinfo
 -lm -lsocket
undefined                       first referenced
 symbol                             in file
roundup                             sshconnect1.o
i386ld fatal: Symbol referencing errors. No output written to ssh
gmake: *** [ssh] Error 13
...

Is roundup a define on all the platforms that support it?
Can we safely do
	#ifndef roundup
	#define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
	#endif

It seems to be a define on Solaris, UnixWare, & Linux.

-- 
Tim Rice				Multitalents	(707) 887-1469
tim at multitalents.net