VMS version 8.2 and VAXCRTL

[Doug Stracey]

Afternoon,
This may have changed many years ago but I can't find the references. We link to a number of routines (strlen, Strcpy, ATOI etc) that were in the VAXCRTL.OLB.
Since we migrated to an integrity box running vms version 8.2 they seem to have "dispappeared".
Clues please ?

thanks

[Arch_Muthiah]

Doug,

The shareable images VAXCRTL.EXE and VAXCRTLG.EXE do not exist on OpenVMS Alpha and I64 systems.

The only C RTL shareable image is in OpenVMS/IA64 is LIBRARY:DECC$SHR.EXE
and
ALPHA$LIBRARY:DECC$SHR.EXE (ALPHA ONLY) which the linker automatically finds through IMAGELIB.OLB.

The complete HP C Run-Time Library (C RTL) needed for use with the HP C and C++ compilers is distributed with the OpenVMS Alpha and I64 operating systems in both shared image and object module library form.

Archunan

[Doug Stracey]

Thanks for the reply - are you saying I should have the vaxcrtl.olb ?

[Steven Schweda]

Using DEC/Compaq/HP C, one doesn't normally
link with any VAXC*.OLB libraries. A bare
LINK command normally does the job (using
SYS$LIBRARY:DECC$CRTL.EXE, I assume).

How are you compiling and linking?

[Doug Stracey]

Afternoon,
The program is written in VAX Basic and macro - no C code at all. So in the link command was a "sys$library:vaxcrtl.olb/lib"

Thanks

[Arch_Muthiah]

Doug,

No VAXCRTL comes with I64/openVMS. You don't need to VAXCRTL.OLB.

I hope you have latest C/C++ compiler (v7.1) . With these compiler. Just the
$ LINK CProg -- command will automatically searches IMAGELIB.OLB to find DECC$SHR.EXE and resolves all C RTL references in your C code.

Even you can deassign LNK$LIBRARY logicals, because linking with the shareable image is more convenient than linking with the HP C RTL object libraries.

Archunan

[Doug Stracey]

Imagelib.olb has a number of modules all with the name starting with DECC$... for example DECC$STRLEN - the old VAXCRTL had names like "strlen" (no decc$). Do I assume these are the same routines and we have to change all our call to DECC$...

[Arch_Muthiah · Accepted solution]

Hi Doug,

you did not mention about that you are using BASIC. sys$library:vaxcrtl.olb is for old version of OS and C compiler.

Anyway as I mentioned earlier that OpenVMS 8.2 comes with IMAGELIB.OLB, which has all RTL functions defined.

I would suggest you can go ahead compile and link, no need to specify any *.OLB seperately.

Also, the new RTL comesup with new and modified RTL routines (arguments), you will have to change modify all those RTL your program calls.

Archunan

[Doug Stracey]

This works