Re: [Linker Error] Unresolved external
От | Graf László |
---|---|
Тема | Re: [Linker Error] Unresolved external |
Дата | |
Msg-id | 41B45157.7090409@axis.hu обсуждение исходный текст |
Ответ на | Re: [Linker Error] Unresolved external ("Magnus Hagander" <mha@sollentuna.net>) |
Список | pgsql-hackers-win32 |
OK I got it. I had to reinstall the 8 release and change some install settings. So now I have the include and lib folders. But I got a new error message now. It say that I can not install and start the service because the user grafl is member of admin group. How can I start it remaining in the admin group? Magnus Hagander wrote: > It should contain the include files, but you need to specifically enable that feature for installation (they're not installedby default, IIRC). > > //Magnus > > >>-----Original Message----- >>From: Graf László [mailto:graf.laszlo@axis.hu] >>Sent: Monday, December 06, 2004 1:01 PM >>To: Magnus Hagander; pgsql-hackers-win32@postgresql.org >>Subject: Re: [pgsql-hackers-win32] [Linker Error] Unresolved external >> >>I got the 8.0 release but it do not contain include files >>only dlls in the lib forder. >> >>Magnus Hagander wrote: >> >>>You need to link with libpqdll.lib. So far you are just >> >>specifying a directory to look for the .lib in - not >>actually telling it to do the link. I have no idea how to do >>that in Borland C++, though. In MSVC you just add the lib >>file to your project. >> >>>(Also, beware that PostgreSQL 7.2.1 is *very* old. I'd strongly >>>suggest you look at something newer. For win32, you can go >> >>with either >> >>>7.4 on cygwin or 8.0 release candidate on native win32) >>> >>>//Magnus >>> >>> >>> >>>>-----Original Message----- >>>>From: Graf László [mailto:graf.laszlo@axis.hu] >>>>Sent: Monday, December 06, 2004 10:20 AM >>>>To: pgsql-hackers-win32@postgresql.org >>>>Subject: [pgsql-hackers-win32] [Linker Error] Unresolved external >>>> >>>>Hi all, >>>> >>>>As a novice I installed PostgreSQL 7.2.1 on Win32 and >> >>works, Borland >> >>>>C++Builder Enterprise Suite 5.0 (build 12.34) what works too. >>>> >>>>I decided to combine these two programs and develop a >> >>simple GUI app >> >>>>to display datas queried from PostgreSQL. I did make the following >>>>changes in the project's settings: >>>> >>>>Project->Properties->Directories->Include path += C:\Program >>>>Project->Properties->Directories->Files\PostgreSQL\7\include >> >> Librariy >> >>>>Project->Properties->Directories->path += C:\Program >>>>Project->Properties->Directories->Files\PostgreSQL\7\lib >>>> >>>>(I aded these lines to the project paths). >>>> >>>>Within a brand new BCB project I typed in the simpliest code: >>>> >>>> >>>>#include <libpq-fe.h> >>>>char *pghost, *pgport, *pgoptions, *pgtty; >>>>char *dbName; >>>>int nFields, i, j; >>>>PGconn *conn; >>>>PGresult *res; >>>> >>>>pghost = NULL; /* host name of the backend server */ >>>>pgport = NULL; /* port of the backend server */ >>>>pgoptions = NULL; /* special options to start up >> >>the backend >> >>>> * server */ >>>>pgtty = NULL; /* debugging tty for the >> >>backend server */ >> >>>>dbName = "template1"; >>>> >>>>/* make a connection to the database */ conn = >> >>PQsetdb(pghost, pgport, >> >>>>pgoptions, pgtty, dbName); >>>> >>>>res = PQexec(conn, "BEGIN"); >>>>PQclear(res); >>>> >>>>res = PQexec(conn, "DECLARE mycursor CURSOR FOR SELECT * FROM >>>>pg_database"); PQclear(res); res = PQexec(conn, "FETCH ALL in >>>>mycursor"); nFields = PQnfields(res); for (i = 0; i < nFields; i++) >>>> printf("%-15s", PQfname(res, i)); printf("\n\n"); >>>> >>>>/* next, print out the rows */ >>>>for (i = 0; i < PQntuples(res); i++) >>>>{ >>>> for (j = 0; j < nFields; j++) >>>> printf("%-15s", PQgetvalue(res, i, j)); >>>> printf("\n"); >>>>} >>>>PQclear(res); >>>> >>>>res = PQexec(conn, "CLOSE mycursor"); >>>>PQclear(res); >>>> >>>>/* commit the transaction */ >>>>res = PQexec(conn, "COMMIT"); >>>>PQclear(res); >>>> >>>>/* close the connection to the database and cleanup */ >> >>PQfinish(conn); >> >>>>When I run the app I got these errors: >>>> >>>>[Linker Error] Unresolved external '_PQconnectdb' >>>> referenced from C:\PROGRAM >>>>FILES\POSTGRESQL\7\CLIENT\BCB_01\MAIN.OBJ >>>>[Linker Error] Unresolved external '_PQnfields' >>>> referenced from C:\PROGRAM >>>>FILES\POSTGRESQL\7\CLIENT\BCB_01\MAIN.OBJ >>>>[Linker Error] Unresolved external '_PQexec' >>>> referenced from C:\PROGRAM >>>>FILES\POSTGRESQL\7\CLIENT\BCB_01\MAIN.OBJ >>>>[Linker Error] Unresolved external '_PQclear' >>>> referenced from C:\PROGRAM >>>>FILES\POSTGRESQL\7\CLIENT\BCB_01\MAIN.OBJ >>>>[Linker Error] Unresolved external '_PQfinish' >>>> referenced from C:\PROGRAM >>>>FILES\POSTGRESQL\7\CLIENT\BCB_01\MAIN.OBJ >>>> >>>>What is wrong? I supose that I miss something to configure. >>>> >>>>Laszlo Graf >>>> >>>>---------------------------(end of >>>>broadcast)--------------------------- >>>>TIP 5: Have you checked our extensive FAQ? >>>> >>>> http://www.postgresql.org/docs/faqs/FAQ.html >>>> >>>> >> >>-- >>Graf László - bitfaragó >>http://grafl.port5.com/ >> >> -- Graf László - bitfaragó http://grafl.port5.com/
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