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https://issues.apache.org/jira/browse/MADLIB-877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan updated MADLIB-877:
-----------------------------------
Fix Version/s: (was: v1.15.1)
> unable to properly compile c module
> -----------------------------------
>
> Key: MADLIB-877
> URL: https://issues.apache.org/jira/browse/MADLIB-877
> Project: Apache MADlib
> Issue Type: Request
> Reporter: Mohamed Awad
> Assignee: Rahul Iyer
> Priority: Trivial
>
> hi,
> I am trying to add a new C module called dbscan.
> I added my c files in src/modules/dbscan
> here is a snap from the main header file of file dbscan_main.h:
>
> #include "link_linkedlist.h"
> #include "linkedlist.h"
> #include "kdtree.h"
> #include "dbscan.h"
> //rest of include files
> Datum madlib_dbscan(PG_FUNCTION_ARGS);
> //rest of functions declarations
> I added the following line in src/modules/declarations.hpp
> #include "dbscan/dbscan_main.h"
> I also added the following line to src/config/modules.yml
> - name: dbscan
> I also added my sql_in and py_in into src/ports/postgres/modules/dbscan/
> thats my function create syntax:
> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.dbscan_c_function
> (
> TEXT,
> SMALLINT,
> REAL
> )
> RETURNS SETOF RECORD AS
> '/usr/local/madlib/Versions/1.6/ports/postgres/9.3/lib/libmadlib.so',
> 'madlib_dbscan'
> LANGUAGE C STRICT IMMUTABLE
> m4_ifdef(`__HAS_FUNCTION_PROPERTIES__', `NO SQL', `');
> The thing is when I run make and make install my sql_in and py_in files are
> read successfully but the c files are not added to libmadlib.so, I know that
> because when i try to install madlib to a specific database this error shows
> up
> madpack.py : INFO : > - dbscan
> madpack.py : ERROR : Failed executing
> /tmp/madlib.IK027m/dbscan/dbscan.sql_in.tmp
> madpack.py : ERROR : Check the log at
> /tmp/madlib.IK027m/dbscan/dbscan.sql_in.log
> madpack.py : INFO : Rolling back the installation...
> madpack.py : INFO : Rollback finished successfully.
> madpack.py : ERROR : MADlib installation failed.
> and when I open the log file I get this message:
> ERROR: psql:/tmp/madlib.og0rC1/dbscan/dbscan.sql_in.tmp:94: ERROR:
> could not load library
> "/usr/local/madlib/Versions/1.6/ports/postgres/9.3/lib/libmadlib.so":
> /usr/local/madlib/Versions/1.6/ports/postgres/9.3/lib/libmadlib.so: undefined
> symbol: _ZN6madlib11dbconnector8postgres7AnyType22sLazyConversionToDatumE
> I am using ubuntu 14.04, postgresql 9.3.5 and madlib 1.6
> Any suggestions?
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