Static build for SQL plugin

mbnoimi · wrote on 24 Sept 2013, 00:14

I fixed the above issue and built Qt successfully by using the following configurations:

[code]configure -no-warnings-are-errors -qt-pcre -qt-libpng -ltcg -release -developer-build -static -qt-sql-sqlite -qt-sql-psql -qt-zlib -qt-libjpeg -opengl desktop -nomake examples -nomake tests -I C:/postgresql-9.1.9/src/include -L C:/postgresql-9.1.9/src/interfaces/libpq -I C:/postgresql-9.1.9/src/interfaces/libpq[/code]

But as soon as I call any SQL class I get linking error although I successfully built Qt and Postgresql by MinGW!
http://pastebin.com/2e8pqnmM

I used the following project to test SQL connectivity:

test.pro
[code]QT += core gui sql

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = test
TEMPLATE = app

SOURCES += main.cpp
mainwindow.cpp

HEADERS += mainwindow.h

FORMS += mainwindow.ui

QMAKE_LFLAGS += -static -static-libgcc -static-libstdc++ -lpthread

LIBS += -LC:/postgresql-9.1.9/src/interfaces/libpq -lpq
[/code]

main.cpp
[code]QSqlDatabase db = QSqlDatabase::addDatabase("QPSQL");
db.setHostName("192.168.0.74");
db.setPort(5432);
db.setDatabaseName("testDB");
db.setUserName("postgres");
db.setPassword("pass");
if (!db.open())
qDebug() << "Unable to connect!";
else
qDebug() << "connected.";[/code]

mbnoimi · wrote on 24 Sept 2013, 00:19

BTW, libpq.a and libpq.dll are exists in in C:\postgresql-9.1.9\src\interfaces\libpq

raven-worx · wrote on 24 Sept 2013, 06:21

i'm not sure, but i t may be that you need to do this in your PRO file:
LIBS += -LC:/postgresql-9.1.9/src/interfaces/libpq -llibpq

mbnoimi · wrote on 24 Sept 2013, 08:59

[quote author="raven-worx" date="1380003684"]i'm not sure, but i t may be that you need to do this in your PRO file:
LIBS += -LC:/postgresql-9.1.9/src/interfaces/libpq -llibpq[/quote]

It gives:
[code]c:/mingw48_32/bin/../lib/gcc/i686-w64-mingw32/4.8.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -llibpq
collect2.exe: error: ld returned 1 exit status
Makefile.Release:82: recipe for target 'release\test.exe' failed
mingw32-make[1]: *** [release\test.exe] Error 1
mingw32-make[1]: Leaving directory 'C:/Users/mbnoimi/Desktop/build-test-Static_PG-Release'
makefile:34: recipe for target 'release' failed
mingw32-make: *** [release] Error 2
01:59:01: The process "C:\mingw48_32\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project test (kit: Static PG)
When executing step 'Make'
01:59:01: Elapsed time: 00:04.[/code]

raven-worx · wrote on 24 Sept 2013, 09:05

ok i was wrong then.

According to "this post":http://www.postgresql.org/message-id/Pine.LNX.4.30.0108241344260.677-100000@peter.localdomain you need -lpq, what you already had tried. So it seem this was correct. So the problem needs to be somewhere else.

mbnoimi · wrote on 24 Sept 2013, 10:11

[quote author="raven-worx" date="1380013513"]ok i was wrong then.

According to "this post":http://www.postgresql.org/message-id/Pine.LNX.4.30.0108241344260.677-100000@peter.localdomain you need -lpq, what you already had tried. So it seem this was correct. So the problem needs to be somewhere else.[/quote]

What do you suggest? I emptied my pockets :)

mbnoimi · wrote on 27 Sept 2013, 03:09

Sorry guys but I'm still stuck with this issue.

I successfully built Postgresql's client by MinGW and Qt for with static options for enabling Postgresql but I Qt failed in linking the libraries as mentioned in my post https://qt-project.org/forums/viewreply/143908/

May you give me a hand of help?

SGaist · wrote on 27 Sept 2013, 07:43

Did you also add
@QTPLUGIN += qsqlmysql@
to your pro file ?
and
@Q_IMPORT_PLUGIN( qsqlmysql )@
to your main.cpp ?

EDIT: corrected macro

mbnoimi · wrote on 27 Sept 2013, 10:38

After adding the lines you've mentioned I got this error:
[code]..\test\main.cpp:5:17: error: expected constructor, destructor, or type conversion before '(' token
QT_IMPORT_PLUGIN( qsqlpsql )[/code]

BTW, I never find any *.dll or *.a inside Qt folder where I built it statically!!! so I wonder how these line will link qsqlpsql?

SGaist · wrote on 27 Sept 2013, 10:58

Did you build Qt with qt-sql-psql ? (Not -plugin-sql-psql)

mbnoimi · wrote on 27 Sept 2013, 11:21

[quote author="SGaist" date="1380279497"]Did you build Qt with qt-sql-psql ? (Not -plugin-sql-psql)[/quote]

Yes; I built using:
[code]configure -no-warnings-are-errors -qt-pcre -qt-libpng -ltcg -release -developer-build -static -qt-sql-sqlite -qt-sql-psql -qt-zlib -qt-libjpeg -opengl desktop -nomake examples -nomake tests -I C:/postgresql-9.1.9/src/include -L C:/postgresql-9.1.9/src/interfaces/libpq -I C:/postgresql-9.1.9/src/interfaces/libpq[/code]

SGaist · wrote on 28 Sept 2013, 22:00

Sorry, I made a typo for the import macro... I've corrected the post

mbnoimi · wrote on 29 Sept 2013, 00:19

[quote author="SGaist" date="1380405617"]Sorry, I made a typo for the import macro... I've corrected the post[/quote]

Thanks for correction. Now Qt gave me a new error message about missing qsqlpsql as following:
[code]c:/mingw48_32/bin/../lib/gcc/i686-w64-mingw32/4.8.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lqsqlpsql
collect2.exe: error: ld returned 1 exit status
Makefile.Release:82: recipe for target 'release\test.exe' failed
mingw32-make[1]: *** [release\test.exe] Error 1
mingw32-make[1]: Leaving directory 'C:/Users/mbnoimi/Desktop/build-test-Static_PG-Release'
makefile:34: recipe for target 'release' failed
mingw32-make: *** [release] Error 2
17:07:16: The process "C:\mingw48_32\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project test (kit: Static PG)
When executing step 'Make'
17:07:16: Elapsed time: 00:13.[/code]

For fixing this issue I tried to find the missing library but unfortunately I couldn't find it!

NOTE: Qt built successfully and it didn't show any error message (by using "the above options":https://qt-project.org/forums/viewreply/144398/)

[code]
C:\Qt>dir *.a /s /p /w /b
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Bootstrap.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Concurrent.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Core.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Gui.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Network.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5OpenGL.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5OpenGLExtensions.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5PlatformSupport.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5PrintSupport.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Sql.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Test.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Widgets.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libQt5Xml.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\lib\libqtmain.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\accessible\libqtaccessiblewidgets.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\bearer\libqgenericbearer.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\bearer\libqnativewifibearer.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\imageformats\libqico.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\platforms\libqminimal.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\platforms\libqoffscreen.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\platforms\libqwindows.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\plugins\printsupport\libwindowsprintersupport.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\tests\auto\corelib\io\qdir\types\a.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\tests\auto\corelib\io\qdir\types\b.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\tests\auto\corelib\io\qdir\types\c.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\tests\auto\corelib\io\qdir\types\d.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\tests\auto\corelib\io\qdir\types\e.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtbase\tests\auto\corelib\io\qdir\types\f.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtwebkit\WebKitLibraries\libWebCoreSQLite3.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtwebkit\WebKitLibraries\libWebKitSystemInterfaceLion.a
C:\Qt\Qt5.1.1-static-sqlite-pgsql\qtwebkit\WebKitLibraries\libWebKitSystemInterfaceMountainLion.a
C:\Qt>
[/code]

SGaist · wrote on 29 Sept 2013, 20:49

You won't have any plugin lib since they are built in Qt's sql library, did you add qsqlpsql in your pro file ?

mbnoimi · wrote on 29 Sept 2013, 20:53

[quote author="SGaist" date="1380487767"]You won't have any plugin lib since they are built in Qt's sql library, did you add qsqlpsql in your pro file ?[/quote]

test.pro
[code]QT += core gui sql

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = test
TEMPLATE = app

SOURCES += main.cpp
mainwindow.cpp

HEADERS += mainwindow.h

FORMS += mainwindow.ui

QTPLUGIN += qsqlpsql

QMAKE_LFLAGS += -static -static-libgcc -static-libstdc++ -lpthread

LIBS += -LC:/postgresql-9.1.9/src/interfaces/libpq -lpq
[/code]

mbnoimi · wrote on 29 Sept 2013, 20:55

main.cpp
[code]#include "mainwindow.h"
#include <QApplication>
#include <QtPlugin>

Q_IMPORT_PLUGIN( qsqlpsql )

int main(int argc, char *argv[])
{

QApplication a(argc, argv);
MainWindow w;
w.show();

return a.exec&#40;&#41;;

}
[/code]

SGaist · wrote on 30 Sept 2013, 08:15

Just thought that since you have all sql plugins built in you might not need the QTPLUGIN line from the pro file

mbnoimi · wrote on 3 Oct 2013, 00:51

[quote author="SGaist" date="1380528900"]Just thought that since you have all sql plugins built in you might not need the QTPLUGIN line from the pro file[/quote]

Unfortunately it didn't fix the issue and generated ton of errors as shown in full log of build process: http://paste.kde.org/p96ac01e7

I'm really frustrated; The hardest step done (building Postgresql with MinGW) while the supposed easy one delays the success!!!

SGaist · wrote on 3 Oct 2013, 07:35

Looks like it needs postgresql symbol, you have to add the link information to postgresql

mbnoimi · wrote on 3 Oct 2013, 09:00

[quote author="SGaist" date="1380785713"]Looks like it needs postgresql symbol, you have to add the link information to postgresql[/quote]

How can I do it?