Board index » cppbuilder » Unresolved external '_errno'

2005-03-15 02:21:33 AM
cppbuilder75
Hi.
I'm trying to rebuild a very old project.... I have not had to do this
in quite some time.
I am using Borland 5.02 and the OWL that came with it.
When I try to link the application (the compile goes seemingly fine),
I get the link error:
"Unresolved external '_errno'
I am guessing that this is part of the run time library...
I did not specify not to use anything I did not years ago, so I'm
trying to figure out if maybe a path change or something could cause
the _errno link error.
Thanks for your patience and advice.
Jeff Kish
 

Jeff Kish wrote:
Without the RTLDLL, errno is a variable.
With the RTL, it is a function: GetErrno().
If you have old objects compiled without RTL, and are now linking with
RTL, then they wouldn't find an errno.
Recheck your settings, then recompile the entire project. (delete all
objs to force it if you must)
 

On Mon, 14 Mar 2005 11:07:14 -0800, Bob Gonder
< XXXX@XXXXX.COM >wrote:
OK. Normally we have the include default libraries unchecked, so I
guess that means errno should be a variable.
I'm not sure how I would end up with that message if my project is set
to not include default libraries.
Thanks. I'm still head scratching, but better informed.
Jeff Kish
 

{smallsort}

On Mon, 14 Mar 2005 11:07:14 -0800, Bob Gonder
< XXXX@XXXXX.COM >wrote:
When I right click on a variable in te ide, and try "Browse symbol" I
get a messagebox saying ".Exe not found".
Is this a indicator of some fubar sort of thing?
Thanks again
Jeff Kish
 

Jeff Kish wrote:
Try StandardRuntimeLibraries->Static.
(In BC++3.1 it's under Options/Linker/Libraries)
Remove all object files and pre-compiled headers, and do a Build-All.
compiled. And it isn't compiled yet (linker error)
 

On Mon, 14 Mar 2005 18:52:00 -0800, Bob Gonder
< XXXX@XXXXX.COM >wrote:
Jeff Kish