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postgreSQL Compilation and linking

During compilation, you have to add the PostgreSQL include directory, which can be found with pg_config --includedir, to the include path.

You must link with the PostgreSQL client shared library ( on UNIX, libpq.dll on Windows). This library is in the PostgreSQL library directory, which can be found with pg_config -- libdir.

Note: For historical reason, the library is called libpq.soand not, which is a popular trap for beginners.

Given that the below code sample is in file coltype.c, compilation and linking would be done with

gcc -Wall -I "$(pg_config --includedir)" -L "$(pg_config --libdir)" -o coltype coltype.c -lpq

with the GNU C compiler (consider adding -Wl,-rpath,"$(pg_config --libdir)" to add the library search path) or with

cl /MT /W4 /I <include directory> coltype.c <path to libpq.lib>

on Windows with Microsoft Visual C.


In this page (written and validated by ) you learned about postgreSQL Compilation and linking . What's Next? If you are interested in completing postgreSQL tutorial, your next topic will be learning about: postgreSQL Aggregate Functions.

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