Build errors..

[cyboy22]

Hi,

I have just downloaded the code and tried to build it using the instructions. However, I get:

CMake Error at /usr/local/Cellar/cmake/3.26.3/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
Could NOT find PostgreSQL (missing: PostgreSQL_LIBRARY
PostgreSQL_INCLUDE_DIR PostgreSQL_TYPE_INCLUDE_DIR)
Call Stack (most recent call first):
/usr/local/Cellar/cmake/3.26.3/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:600 (_FPHSA_FAILURE_MESSAGE)
cmake/modules/FindPostgreSQL.cmake:225 (find_package_handle_standard_args)
CMakeLists.txt:11 (find_package)

I work on Mac and did the following:

export PostgreSQL_LIBRARY=/Library/PostgreSQL/13/lib/libpq.dylib
export PostgreSQL_INCLUDE_DIR=/Library/PostgreSQL/13/include
export PostgreSQL_TYPE_INCLUDE_DIR=/Library/PostgreSQL/13/include

but got the same message.
Could you suggest where I am going wrong?

Finallly, I attempted to include <ozo/connection_pool.h> but get the following message needing another include which I cannot find on my system:

[JonasProgrammer]

Hi,

not an 'official' author of the library, but I have done some stuff regarding packaging and CMake.

export PostgreSQL_LIBRARY=/Library/PostgreSQL/13/lib/libpq.dylib
export PostgreSQL_INCLUDE_DIR=/Library/PostgreSQL/13/include
export PostgreSQL_TYPE_INCLUDE_DIR=/Library/PostgreSQL/13/include

but got the same message. Could you suggest where I am going wrong?

Due to some changes in how PostgreSQL targets are provided by the package config, while still trying to support old CMake versions, the project is using a vendored FindPostgreSQL.cmake, that may not automatically recognize PG 13 installations (ll. 89-90). Manually specifying the library paths should work, but you'd need to declare them as CMake variables -- i.e. pass them via -DPostgreSQL_LIBRARY etc. during configuration. Providing an environment variable PostgreSQL_ROOT pointing to the installation base directory may also work.

Finallly, I attempted to include <ozo/connection_pool.h> but get the following message needing another include which I cannot find on my system:

Did you perform a proper recursive clone? elsid/resource_pool should be checked out in contrib then and be picked up automatically.

[cyboy22]

Hi - thanks it works now and my apologies for not following your documentation carefully.
The linker is still giving issues but that is not really a problem right now.