You shouldn't specify the .so extension when linking. The other command-line options will determine whether the linker 
looks for the .a or .so version.

Steve Reid (stever@qnx.com)
Technical Editor
QNX Software Systems 
 

> -----Original Message-----
> From: Lucian Grossmann [mailto:community-noreply@qnx.com] 
> Sent: Monday, January 31, 2011 10:33 AM
> To: general-ide
> Subject: AW: HAM undefined reference - QNX 6.3.2 IDE 4.0.1
> 
> Hello Steve,
> 
> Thank for the feedback.
> 
> Which of these libraries should I link as extra library
> (...\QNX632\target\qnx6\shle\usr\lib):
> libha.a
> libham.a
> libham.so
> libham.so.2
> 
> When I include libha.a and libham.a, I get the error when 
> starting debugging:
> cannot find libham.so.2
> When I include all lib-paths above, I get when compiling: 
> cannot find -lham.so
> 
> Best wishes,
> -- 
> Dr.-Ing. Luciana Jatobá Großmann, MBA
> Systems Engineering - Medizintechnik
> 
> ITK Engineering AG
> Luitpoldstraße 59
> D-76863 Herxheim
> 
> Tel.:  +49 7276 9885-680
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> Mobil: +49 176 21252623
> 
> mailto:luciana.grossmann@itk-engineering.de
> 
> _____________________________________________________________
> 
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> 
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> 
> -----Ursprüngliche Nachricht-----
> Von: Steve Reid [mailto:community-noreply@qnx.com] 
> Gesendet: Montag, 31. Januar 2011 16:13
> An: general-ide
> Betreff: RE: HAM undefined reference - QNX 6.3.2 IDE 4.0.1
> 
> I think you need to link against libham. There's also a libha 
> that some
> functions live in.
> 
> Steve Reid (stever@qnx.com)
> Technical Editor
> QNX Software Systems 
>  
> 
> > -----Original Message-----
> > From: Lucian Grossmann [mailto:community-noreply@qnx.com]
> > Sent: Monday, January 31, 2011 8:53 AM
> > To: general-ide
> > Subject: HAM undefined reference - QNX 6.3.2 IDE 4.0.1
> > 
> > I am trying to use the HAM. I have tried the following code 
> from the 
> > user guide:
> > 
> > #include "ha\ham.h"
> > ...
> > ham entity t *ehdl; /* The entity Handle */ int status;
> > /*
> > connects to a HAM with a heartbeat of 5 seconds and an 
> entity name of 
> > "client1", and no flags it also specifies hpdh = 4, and hpdh = 8 */ 
> > ehdl = ham attach self("client1", 5000000000, 4, 8, 0); if (ehdl == 
> > NULL) { printf("Could not attach to Ham\n"); exit(-1); }
> > /* Detach from a HAM using the original handle */ status = 
> > ham_detach_self(ehdl,0); ...
> > 
> > I am getting the following compiler errors:
> > .c undefined reference to `ham_attach_self'
> > .c undefined reference to `ham_detach_self'
> > .o undefined reference to `ham_attach_self'
> > .o undefined reference to `ham_detach_self'
> > 
> > What should I link? What am I missing?
> > 
> > Thank you in advance.
> > 
> > 
> > 
> > 
> > _______________________________________________
> > 
> > General
> > http://community.qnx.com/sf/go/post82771
> > 
> > 
> 
> 
> 
>...