Re: Compiling C Extension Functions against PostgreSQL 12

Adrian Klaver-4 wrote
> On 5/2/20 1:09 PM, TalGloz wrote:
>> Adrian Klaver-4 wrote
>
>>
>> Yes, they were created when using make against Postgres 10 and I clean
>> them
>> every time when I try a different version of Postgres.
>
> Well I'm reaching the end of what I can do. All I have left is that the
> examples I have seen use:
>
> #include "postgres.h"
>
> not
>
> #include
> <postgres.h>
>>
>> TalGloz
>
>
>
> --
> Adrian Klaver

> adrian.klaver@

If it works for Postgres 10 it should also work for 12. I've changed from
#include <postgres.h> to #include "postgres.h" and I still get the same
error with Postgres 12 and it complies without any problem with Postgres 10

I dont understand why the output for Postgres 12
g++ -Wall -Wpointer-arith -Wendif-labels -Wmissing-format-attribute
-Wformat-security -fno-strict-aliasing -fwrapv -O2 -o seal_diff_cpp.o -c
seal_diff_cpp.cpp
seal_diff_cpp.cpp:2:10: fatal error: postgres.h: No such file or directory
2 | #include "postgres.h"
| ^~~~~~~~~~~~

looks different form the ones of Postgres 10
g++ -std=c++17 -fPIC -Wall -Werror -g -O0 -pthread
-I/usr/pgsql-10/include/server -I/usr/local/include
-I/usr/local/include/cppcodec -o seal_diff_cpp.o -c seal_diff_cpp.cpp
g++ -shared -o seal_diff_cpp.so seal_diff_cpp.o -L/usr/pgsql-12/lib
-L/usr/lib64 -Wl,--as-needed
-Wl,-rpath,'/usr/pgsql-12/lib',--enable-new-dtags -L/usr/local/lib -lseal
-pthread

All the includes with "-I" and "-std=c++17 -fPIC" are from the first line
gone. I even tried to use fixed paths in my Makefiles: "PGXS =
/usr/pgsql-12/lib/pgxs/src/makefiles/pgxs.mk" and "INCLUDEDIR =
/usr/pgsql-12/include/server".

TalGloz

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