Re: [gpsd-dev] Example code for libgps using shared memory

[Michael J. Tubby B.Sc. MIET]

On 11/16/2017 3:05 AM, David Huichen Dai wrote:

On Thu, Nov 16, 2017 at 5:42 AM, Fred Wright <address@hidden> wrote:

On Thu, 9 Nov 2017, David Huichen Dai wrote:

> And I would like to report that after installation, the path to the library
> libgps.so.23 (/usr/local/lib) will not be added to the environmental
> variable automatically.
> After I add the path to LD_LIBRARY_PATH manually, the code using the shared
> memory method works properly.

Anything that requires setting

​​

LD_LIBRARY_PATH is broken.  Did you rerun
ldconfig after the install?

​--No, I didn't. I just added the path to the ​LD_LIBRARY_PATH, and ran the code in a new terminal. 

I was in a hurry to make the code work, and the first thing occurred into my mind was to use the 

LD_LIBRARY_PATH

​.​

 ​

 

​​

​If ​LD_LIBRARY_PATH shouldn't be used in normal circumstances *at all*, how could I use the libgps?

David

On my VR2200 Ubuntu 14.04 based ARM box I edited /etc/ld.so.conf and added:

    include /etc/ld.so.conf.d/*.conf
    /usr/arm-linux-gnueabihf/lib
    /usr/local/lib

and then did an 'ldconfig' ... worked for me but YMMV

Mike

Fred Wright

--

==================================================
David Huichen Dai, PhD

Research assistant
Lab of Broadband Network Switching Technology and Communication
Dept. of Computer Science and Technology
Tsinghua University, Beijing, P.R. China, 100084
Tel: 86-010-6277-3441
Email: address@hidden; address@hidden
==================================================

--

Michael J Tubby B.Sc MIET / Technical Director
address@hidden / +44 (0)7973 225144

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