Windows includepath and libs

luca72

hello i'm under windows if in the .pro file i add this
@
LIBS += -lClasse_scarico_rev_01
INCLUDEPATH += C:\librerie_luca\Classe_scarico_rev_01
@

i get c:/qt/2010.05/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../../mingw32/bin/ld.exe: cannot find -lClasse_scarico_rev_01

if i write this
@
LIBS += C:\librerie_luca\Classe_scarico_rev_01
LIBS += -lClasse_scarico_rev_01
@
i get c:/qt/2010.05/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../../mingw32/bin/ld.exe: C:\librerie_luca\Classe_scarico_rev_01: No such file: Permission denied

What is wrong

Thanks Luca

Edit: one thing that's wrong is your use of @ tags for the code ;-) ; Andre

andre

The includepath is aimed at where header files are found. Not where library files are found. That is documented in the qmake Variable Reference documentation.

luca72

The .h file of the lib that i need to use are in

C:\librerie_luca\Classe_scarico_rev_01

goetz

@
LIBS += -LC:\librerie_luca\Classe_scarico_rev_01
@

andre

Better not to use backslashes though. They will trigger a qmake warning :-)

luca72

@QT += core gui network webkit
TARGET = Excalibur_rev_01
TEMPLATE = app
SOURCES += main.cpp\widget.cpp
HEADERS += widget.h
FORMS += widget.ui
#LIBS += C:\librerie_luca\Classe_scarico_rev_01
LIBS += -LC:\librerie_luca\Classe_scarico_rev_01
INCLUDEPATH += C:\librerie_luca\Classe_scarico_rev_01@

I get:
@
debug/widget.o:C:\Documents and Settings\Luca-XP\Desktop\progetti qt\Excalibur_rev_01\Excalibur_rev_01-build-desktop/../Excalibur_rev_01/widget.cpp:478: undefined reference to `_imp___ZN21Classe_scarico_rev_018connettoE12QHostAddress7QStringS1_iib'

collect2: ld returned 1 exit status

mingw32-make[1]: *** [debug\Excalibur_rev_01.exe] Error 1

mingw32-make: *** [debug] Error 2

The process "C:/Qt/2010.05/mingw/bin/mingw32-make.exe" exited with code %2.
Error while building project Excalibur_rev_01 (target: Desktop)
When executing build step 'Make'
@

Edit: fixed use of @ tags: only one tag needed per code block; Andre

goetz

Did you try to re-run qmake and make clean and make to rebuild you project. Seems like the QNetwork lib is not in the link list.

luca72

yes but i get the same error

Luca

goetz

did you remove this line?

@LIBS += -lClasse_scarico_rev_01@

if yes, your lib is not linked to your program!

-L adds a library search path (like -I does for includes)
-l adds a particular library to your exe

(I misread the error message, actually there is not QtNetwork missing, but some of your own classes).

luca72

I never remove this but i get the same error:
From the program i have access to all the member of the class but i can't compile, this is the -pro file:

@QT += core gui network webkit

TARGET = Excalibur_rev_01
TEMPLATE = app

SOURCES += main.cpp
widget.cpp

HEADERS += widget.h

FORMS += widget.ui

LIBS += -LC:\librerie_luca\Classe_scarico_rev_01 -lClasse_scarico_rev_01

INCLUDEPATH += C:\librerie_luca\Classe_scarico_rev_01
@

and the error that i get is this:

@
Running build steps for project Excalibur_rev_01...
Starting: "c:/qt/2010.05/qt/bin/qmake.exe" C:/Documents and Settings/Luca-XP/Desktop/progetti_qt/Excalibur_rev_01/Excalibur_rev_01/Excalibur_rev_01.pro -r -spec win32-g++
WARNING: c:\Documents and Settings\Luca-XP\Desktop\progetti_qt\Excalibur_rev_01\Excalibur_rev_01\Excalibur_rev_01.pro:20: Unescaped backslashes are deprecated.

WARNING: c:\Documents and Settings\Luca-XP\Desktop\progetti_qt\Excalibur_rev_01\Excalibur_rev_01\Excalibur_rev_01.pro:20: Unescaped backslashes are deprecated.

The process "c:/qt/2010.05/qt/bin/qmake.exe" exited normally.
@

than:

@
Running build steps for project Excalibur_rev_01...
Configuration unchanged, skipping qmake step.
Starting: "C:/Qt/2010.05/mingw/bin/mingw32-make.exe" -w
mingw32-make: Entering directory `C:/Documents and Settings/Luca-XP/Desktop/progetti_qt/Excalibur_rev_01/Excalibur_rev_01-build-desktop'

C:/Qt/2010.05/mingw/bin/mingw32-make -f Makefile.Debug

mingw32-make[1]: Entering directory `C:/Documents and Settings/Luca-XP/Desktop/progetti_qt/Excalibur_rev_01/Excalibur_rev_01-build-desktop'

c:\Qt\2010.05\qt\bin\uic.exe ..\Excalibur_rev_01\widget.ui -o ui_widget.h

g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_WEBKIT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\2010.05\qt\include\QtCore" -I"c:\Qt\2010.05\qt\include\QtNetwork" -I"c:\Qt\2010.05\qt\include\QtGui" -I"c:\Qt\2010.05\qt\include\QtWebKit" -I"c:\Qt\2010.05\qt\include" -I"c:\librerie_luca\Classe_scarico_rev_01" -I"c:\Qt\2010.05\qt\include\ActiveQt" -I"debug" -I"." -I"..\Excalibur_rev_01" -I"." -I"c:\Qt\2010.05\qt\mkspecs\win32-g++" -o debug\main.o ..\Excalibur_rev_01\main.cpp

g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_WEBKIT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\2010.05\qt\include\QtCore" -I"c:\Qt\2010.05\qt\include\QtNetwork" -I"c:\Qt\2010.05\qt\include\QtGui" -I"c:\Qt\2010.05\qt\include\QtWebKit" -I"c:\Qt\2010.05\qt\include" -I"c:\librerie_luca\Classe_scarico_rev_01" -I"c:\Qt\2010.05\qt\include\ActiveQt" -I"debug" -I"." -I"..\Excalibur_rev_01" -I"." -I"c:\Qt\2010.05\qt\mkspecs\win32-g++" -o debug\widget.o ..\Excalibur_rev_01\widget.cpp

..\Excalibur_rev_01\widget.cpp: In member function 'void Widget::leggo_socket()':

..\Excalibur_rev_01\widget.cpp:512: warning: unused variable 'vero'

C:\Qt\2010.05\qt\bin\moc.exe -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_WEBKIT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\2010.05\qt\include\QtCore" -I"c:\Qt\2010.05\qt\include\QtNetwork" -I"c:\Qt\2010.05\qt\include\QtGui" -I"c:\Qt\2010.05\qt\include\QtWebKit" -I"c:\Qt\2010.05\qt\include" -I"c:\librerie_luca\Classe_scarico_rev_01" -I"c:\Qt\2010.05\qt\include\ActiveQt" -I"debug" -I"." -I"..\Excalibur_rev_01" -I"." -I"c:\Qt\2010.05\qt\mkspecs\win32-g++" -D__GNUC__ -DWIN32 ..\Excalibur_rev_01\widget.h -o debug\moc_widget.cpp

g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_WEBKIT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\2010.05\qt\include\QtCore" -I"c:\Qt\2010.05\qt\include\QtNetwork" -I"c:\Qt\2010.05\qt\include\QtGui" -I"c:\Qt\2010.05\qt\include\QtWebKit" -I"c:\Qt\2010.05\qt\include" -I"c:\librerie_luca\Classe_scarico_rev_01" -I"c:\Qt\2010.05\qt\include\ActiveQt" -I"debug" -I"." -I"..\Excalibur_rev_01" -I"." -I"c:\Qt\2010.05\qt\mkspecs\win32-g++" -o debug\moc_widget.o debug\moc_widget.cpp

g++ -enable-stdcall-fixup -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo-reloc -mthreads -Wl -Wl,-subsystem,windows -o debug\Excalibur_rev_01.exe debug/main.o debug/widget.o debug/moc_widget.o -L"c:\Qt\2010.05\qt\lib" -lmingw32 -lqtmaind -LC:\librerie_luca\Classe_scarico_rev_01 -lClasse_scarico_rev_01 -lQtWebKitd4 -lQtGuid4 -lQtNetworkd4 -lQtCored4

mingw32-make[1]: Leaving directory `C:/Documents and Settings/Luca-XP/Desktop/progetti_qt/Excalibur_rev_01/Excalibur_rev_01-build-desktop'

mingw32-make: Leaving directory `C:/Documents and Settings/Luca-XP/Desktop/progetti_qt/Excalibur_rev_01/Excalibur_rev_01-build-desktop'

c:/qt/2010.05/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../../mingw32/bin/ld.exe: cannot find -lClasse_scarico_rev_01

collect2: ld returned 1 exit status

mingw32-make[1]: *** [debug\Excalibur_rev_01.exe] Error 1

mingw32-make: *** [debug] Error 2

The process "C:/Qt/2010.05/mingw/bin/mingw32-make.exe" exited with code %2.
Error while building project Excalibur_rev_01 (target: Desktop)
@

When executing build step 'Make'

giesbert

Just one idea, can you please post a dir listing of this folder:
C:\librerie_luca\Classe_scarico_rev_01

luca72

Hello
I have delete the lib an the program folder, remake all exact the same and now the program work.
Many thanks for you help and time

Luca

Congratulations to our 2022 Qt Champions!

Windows includepath and libs