Looking for help applying patch to NEdit

[Keith Distin]

Tony Balinski wrote:
> Hmmm. I expect the __ctype_... stuff is the static data used by the
<ctype.h>
> "functions" (toupper, isascii etc). These can be implemented as
macros, or
> maybe as inline functions; I expect that's what's happening here, and
that the
> linker cannot find this data reference. I would have thought this
should be in
> the standard C library (libc.so). Pretty fundamental!

I have seen this error with other applications.  It happens when a third party library has been compiled with a glibc older than version 2.3.2 (I think) when you then compile your application and try to link to glibc version newer that this the _ctype_ symbols are undefined.
 
If you search on Google you'll find various references to this. Some people claim it is a glibc bug, but the glibc developers jut sya they've changed how it works.  They recommend that your old library should be compiled against the same glibc that you've currently got.
 
In this case installing up to date libXm should solve the problem.
 
If you can't install a new library a work around that I found is to define the following:
 
#include <ctype.h>
__const unsigned short int *__ctype_b;
__const __int32_t *__ctype_tolower;
__const __int32_t *__ctype_toupper;

void ctSetup()
{
__ctype_b = *(__ctype_b_loc());
__ctype_toupper = *(__ctype_toupper_loc());
__ctype_tolower = *(__ctype_tolower_loc());
}

and call ctSetup(); near the beginning of main()
I hope this helps,
Keith
 
--  
Dr Keith Distin <mailto:keithdistin at arrktechnical.com> 
Technical Specialist, Safety CAE
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