libann-dev is missing ANN.pc for pkgconfig

[John Ellson]

I'm trying to use libann from graphviz.

- the location of the lib moved between 18.04 and 18.10
- no ANN.pc file is provided for either.
- is there a later release available? The one on Fedora26 and later works for graphviz.

[John Ellson (ellson)]

Following up on this.

The library fails to link properly.

Grabbing ann_1.1.1/sample/ann_sample.cpp from upstream (
http://www.cs.umd.edu/~mount/ANN/ ) and compiling on ubuntu_18.04 against
the .deb installed libann produces:

$ g++ ann_sample.cpp -o ann_sample -IANN -Lann
/tmp/ccBhJBQw.o: In function `main':
ann_sample.cpp:(.text+0x14c): undefined reference to `annAllocPt(int,
double)'
ann_sample.cpp:(.text+0x165): undefined reference to `annAllocPts(int, int)'
ann_sample.cpp:(.text+0x284): undefined reference to
`ANNkd_tree::ANNkd_tree(double**, int, int, int, ANNsplitRule)'
ann_sample.cpp:(.text+0x461): undefined reference to `annClose()'
collect2: error: ld returned 1 exit status

On ubuntu 18.10 I get essentially the same result:

$ g++ ann_sample.cpp -o ann_sample -IANN -Lann
/usr/bin/ld: /tmp/ccE53eQm.o: in function `main':
ann_sample.cpp:(.text+0x13c): undefined reference to `annAllocPt(int,
double)'
/usr/bin/ld: ann_sample.cpp:(.text+0x155): undefined reference to
`annAllocPts(int, int)'
/usr/bin/ld: ann_sample.cpp:(.text+0x274): undefined reference to
`ANNkd_tree::ANNkd_tree(double**, int, int, int, ANNsplitRule)'
/usr/bin/ld: ann_sample.cpp:(.text+0x435): undefined reference to
`annClose()'
collect2: error: ld returned 1 exit status

On Tue, Nov 13, 2018 at 9:15 PM John Ellson <email address hidden>
wrote:

> Public bug reported:
>
> I'm trying to use libann from graphviz.
>
> - the location of the lib moved between 18.04 and 18.10
> - no ANN.pc file is provided for either.
> - is there a later release available? The one on Fedora26 and later works
> for graphviz.
>
> ** Affects: pkg-website
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1803243
>
> Title:
> libann-dev is missing ANN.pc for pkgconfig
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/pkg-website/+bug/1803243/+subscriptions
>

[Rhonda D'Vine (rhonda)]

Please file this against the package, not the packages website. :)