I've checked out yarv and tried to build it on OpenBSD 3.9 with Ruby
1.8.4. I get the following error:

gcc main.o  libruby-yarv-static.a -lpthread -lm   -ominiruby -g -O2 
-DRUBY_EXPORT  -Wl,-E
libruby-yarv-static.a(io.o)(.text+0x35b9): In function `rb_io_s_sysopen':
../yarv/io.c:3145: warning: strcpy() is almost always misused, please
use strlcpy()
libruby-yarv-static.a(marshal.o)(.text+0x5c4): In function `w_float':
../yarv/marshal.c:307: warning: sprintf() is often misused, please use
snprintf()
libruby-yarv-static.a(parse.o)(.text+0xc2b1): In function `rb_id2name':
../yarv/parse.y:8535: warning: strcat() is almost always misused,
please use strlcat()
libruby-yarv-static.a(thread.o)(.text+0x18c): In function
`native_thread_apply_priority':
../yarv/thread_pthread.h:108: undefined reference to `sched_get_priority_max'
libruby-yarv-static.a(thread.o)(.text+0x197):../yarv/thread_pthread.h:109:
undefined reference to `sched_get_priority_min'
collect2: ld returned 1 exit status
*** Error code 1


I don't have sched_get_priority_max on OpenBSD. What are my
alternatives, besides moving to another OS or implementing the missing
interfaces myself :-\

--
Gerardo Santana
"Between individuals, as between nations, respect for the rights of
others is peace" - Don Benito Juárez
http://santanatechnotes.blogspot.com/