[pgrouting-dev] Reg: Compile error in KSP with PostgreSQL 8.4

[Stephen Woodbridge]

Mani,

You probably want to start with this version of FindPostgreSQL.cmake

https://github.com/Kitware/CMake/blob/master/Modules/FindPostgreSQL.cmake

It lets you specify PostgreSQL_ADDITIONAL_VERSIONS  variable and if this 
is set to the version you want it will use this version if found.

I think that the return variables that this script sets are different 
from what we expect in pgrouting so you might need to set the expected 
variables with the correct values also.

So, I would replace the existing FindPostgreSQL.cmake with this script 
and then try to make it work with the existing build system, then look 
at reading a command line version and setting the variable above before 
calling find postgresql.

-Steve

On 6/22/2015 11:50 AM, Manikanta Kondeti wrote:
> Hi Steve,
>
> I've tried my best to update cmake/FindPostgreSQL.cmake  and
> CMakeLists.txt, but the build was not successful. I've changed all the
> POSTGRES variables to 9.4, cmake executed properly, but while
> compiling(make) there is a error saying "Postgres.h" not found. Can you
> share your CMakeLists.txt and cmake/FindPostgresql..cmake. I am on the
> version 9.4.
>
> I think this needs to be solved for the next release. We need to the
> pass the postgresql version to build,  like the option you said
> "DUSE_PG=9.x". But unfortunately it is not working right now. I'll try
> to read about cmake and see what I can do. I will update you.
>
> Thank you,
> Mani
>
> On Mon, Jun 22, 2015 at 8:20 PM, Stephen Woodbridge
> <woodbri at swoodbridge.com <mailto:woodbri at swoodbridge.com>> wrote:
>
>     On 6/22/2015 10:37 AM, Manikanta Kondeti wrote:
>
>         Hi,
>
>            I am facing an error while building from source. This is that
>            issue: https://github.com/pgRouting/pgrouting/issues/109
>
>             How to resolve that?  Changing Pg version to 9.1 in
>         CMakeLists.txt is
>         not working. I have 9.1 and 9.4 postgresql versions installed in my
>         system. Help me out in resolving this.
>
>
>     Mani,
>
>     Sorry, the CMakeLists.txt files built for pgrouting 2.x were not
>     designed for support multiple versions installed on the same system.
>     This is a problem for me because I have 9.2, 9.3, and 9.4 installed
>     and I can only build and install on 9.4.
>
>     The solution id to update the CMakeLists.txt and specifically
>     cmake/FindPostgreSQL.cmake which so you can do something like
>
>     cd build
>     cmake -DUSE_PG=9.x ..
>
>     I took a quick look at doing this a while back but
>     cmake/FindPostgreSQL.cmake needs to be replaced and other changes
>     are needed and I didn't have time to make the changes and get it
>     working.
>
>     tools/test-runner.pl <http://test-runner.pl> already support options
>     for pg versions and ports so only the build system is broken in this
>     regard.
>
>     If you want to read up on CMake and get this working a pull request
>     would be great!
>
>     -Steve
>
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