[libdc1394-devel] calling functions in dc1394_register.c (linking problems)

[Aravind S. <ara...@um...>]

Hi,

I am using functions in dc1394_register.c to access registers in the
camera. Currently I get linking problems. I have a file
vendor_pixelink.c (like dc1394_vendor_avt.h) that uses functions in
dc1394_register.c.

g++ -g -O2 -Wall -I/opt/libdc1394-2.0.0-20060207/include/dc1394 -c -o
vendor_pixelink.o vendor_pixelink.c

compiles without any error.

However

g++ -g -O2 -Wall -I/opt/libdc1394-2.0.0-20060207/include/dc1394 -o
trigger trigger.c options.o common.o vendor_pixelink.o -lm -lstdc++
-L/opt/libdc1394-2.0.0-20060207/lib/ -L/usr/local/lib -lraw1394
-ldc1394

has several linking problems such as the following.

/opt/src/pixelink/trunk/vendor_pixelink.c:80: undefined reference to
`GetCameraAdvControlRegister(__dc1394_camera*, unsigned long long,
unsigned int*)'

I get over the problem by duplicating dc1394_register.c in the current
directory and creating dc1394_register.o and linking against it as
follows

g++ -g -O2 -Wall -I/opt/libdc1394-2.0.0-20060207/include/dc1394 -o
trigger trigger.c options.o common.o vendor_pixelink.o
dc1394_register.o         -lm -lstdc++
-L/opt/libdc1394-2.0.0-20060207/lib/ -L/usr/local/lib -lraw1394
-ldc1394

Is there any way I can avoid duplicating these files?

Thanks,
Aravind.
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________________________________________________________________________
Aravind Sundaresan
PhD Candidate
University of Maryland, College Park