System calls (mount - pread64)

Name of Interface	Legacy compatibility				UDK compatibility
	Compiled using SCO OpenServer DevSys		Compiled using SCO UnixWare 2.1.X SDK		Compiled using UnixWare 7 UDK
	Library Name	Works on UnixWare 7?	Library Name	Works on UnixWare 7?	Library Name	Works on SCO OpenServer?	Works on SCO UnixWare 2.1.X?
mount	libc	No; recode?	libc	Yes	libc	No; recode?	Yes
mprotect	libc	Yes	libc	Yes	libc	Yes	Yes
msgctl	libc	Yes	libc	Yes	libc	Yes	Yes
msgget	libc	Yes	libc	Yes	libc	Yes	Yes
msgrcv	libc	Yes	libc	Yes	libc	Yes	Yes
msgsnd	libc	Yes	libc	Yes	libc	Yes	Yes
munmap	libc	Yes	libc	Yes	libc	Yes	Yes
nice	libc	No; recode.	libc	Yes	libc	Yes; notes.	Yes
open	libc	Yes	libc	Yes	libc	Yes	Yes
open32	--	--	libc	Yes	libc	--	Yes
open64	--	--	libc	Yes	libc	--	--
p_online	--	--	libc	Yes	libc	--	Yes
paccess	libc	No; recode.	--	--	--	--	--
pathconf	libc	Yes	libc	Yes	libc	Yes	Yes
pause	libc	Yes	libc	Yes	libc	Yes	Yes
pipe	libc	Yes; notes.	libc	Yes	libc	Yes; notes.	Yes
plock	libc	Yes	libc	Yes	libc	Yes	Yes
poll	libc	Yes; notes.	libc	Yes	libc	Yes	Yes
pread	--	--	libc	Yes	libc	--	Yes
pread64	--	--	libc	Yes	libc	--	--

 ----------------------------------------------------------------------------------------
|          |           Legacy compatibility          |         UDK compatibility        |
|          |--------------------|--------------------|----------------------------------|
| Name of  |    Compiled using  |    Compiled using  |     Compiled using UnixWare 7    |
| Interface|    SCO OpenServer  |    SCO UnixWare    |     UDK                          |
|          |    DevSys          |    2.1.X SDK       |                                  |
|          |---------|----------|---------|----------|---------|-------------|----------|
|          |  Library|  Works   |  Library|  Works   |  Library|  Works      |  Works   |
|          |  Name   |  on      |  Name   |  on      |  Name   |  on         |  on      |
|          |         |  UnixWare|         |  UnixWare|         |  SCO        |  SCO     |
|          |         |  7?      |         |  7?      |         |  OpenServer?|  UnixWare|
|          |         |          |         |          |         |             |  2.1.X?  |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| mount    |  libc   |  No;     |  libc   |  Yes     |  libc   |  No;        |  Yes     |
|          |         |  recode? |         |          |         |  recode?    |          |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| mprotect |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| msgctl   |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| msgget   |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| msgrcv   |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| msgsnd   |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| munmap   |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| nice     |  libc   |  No;     |  libc   |  Yes     |  libc   |  Yes;       |  Yes     |
|          |         |  recode. |         |          |         |  notes.     |          |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| open     |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| open32   |  --     |  --      |  libc   |  Yes     |  libc   |  --         |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| open64   |  --     |  --      |  libc   |  Yes     |  libc   |  --         |  --      |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| p_online |  --     |  --      |  libc   |  Yes     |  libc   |  --         |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| paccess  |  libc   |  No;     |  --     |  --      |  --     |  --         |  --      |
|          |         |  recode. |         |          |         |             |          |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| pathconf |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| pause    |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| pipe     |  libc   |  Yes;    |  libc   |  Yes     |  libc   |  Yes;       |  Yes     |
|          |         |  notes.  |         |          |         |  notes.     |          |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| plock    |  libc   |  Yes     |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| poll     |  libc   |  Yes;    |  libc   |  Yes     |  libc   |  Yes        |  Yes     |
|          |         |  notes.  |         |          |         |             |          |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| pread    |  --     |  --      |  libc   |  Yes     |  libc   |  --         |  Yes     |
|----------|---------|----------|---------|----------|---------|-------------|----------|
| pread64  |  --     |  --      |  libc   |  Yes     |  libc   |  --         |  --      |
|----------|---------|----------|---------|----------|---------|-------------|----------|