[sane-devel] updating sane on Ubuntu 12.04 64 bit leaves xsane using old sane software

[Justin Harding]

Hi

I have not developed Linux libraries, so there may be something obvious I
missed here ...

I want to use my Canon Pixma MP495 scanner from simple-scan. Sane on Ubuntu
12.04 seems old and doesn't include MP495 support.

After building and installing sane on my Ubuntu 12.04 64 bit system,
simple-scan and xsane were still using old drivers. I fixed this by
updating a link to point to the new sane. Is this correct behaviour?

I built and installed sane as follows

./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
make
sudo make install

After install I had (new drivers are dated 13 May)
2883607    0 lrwxrwxrwx   1 root     root           23 May 13 07:58
/usr/lib/sane/libsane-pixma.so.1 -> libsane-pixma.so.1.0.23
2883608    0 lrwxrwxrwx   1 root     root           23 May 13 07:58
/usr/lib/sane/libsane-pixma.so -> libsane-pixma.so.1.0.23
2883606  496 -rwxr-xr-x   1 root     root       506908 May 13 07:58
/usr/lib/sane/libsane-pixma.so.1.0.23
2885985    0 lrwxrwxrwx   1 root     root           21 May  8 19:54
/usr/lib/x86_64-linux-gnu/libpixman-1.so.0 -> libpixman-1.so.0.24.4
2885986  540 -rw-r--r--   1 root     root       551176 Feb 10 10:10
/usr/lib/x86_64-linux-gnu/libpixman-1.so.0.24.4
3147637    0 lrwxrwxrwx   1 root     root           37 May 13 08:03
/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1 -> libsane-pixma.so.1.0.22
3141066  136 -rw-r--r--   1 root     root       138064 Dec  5 04:57
/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1.0.22

 so the new 64 bit drivers were installed into /usr/lib/sane, the link used
by xsane and simple-scan still pointed to the old driver
in /usr/lib/x86_64-linux-gnu/sane

It was necessary to make the following change

3147637    0 lrwxrwxrwx   1 root     root           37 May 13 08:03
/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1 ->
/usr/lib/sane/libsane--pixma.so.1.0.23

Thanks
Justin
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