configuration for my .pro (and collect2: ld returned 1 exit status)

[21did21]

hello all,

I am doing a project on windows and when I do a qmake and then I compile all works very well

=> I switched to Linux and it does not work at all (even the QMake), in fact I had to give in. Pro ​​addresses of bookstores I used to clear all the error messages:

INCLUDEPATH + = / usr/local/qwt-6.0.2-svn/include
LIBS + = / usr/local/qwt-6.0.2-svn/lib

INCLUDEPATH + = / usr/local/qwt-6.0.2-svn/include
LIBS + = / usr/local/qwt-6.0.2-svn/lib

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=> Now an error message appears:
collect2: ld returned 1 exit status

=> I searched the net and I understand the need to put in the. Pro ​​this:

DEPENDPATH + = / home / first name / myproject

DEPENDPATH + = / home / first name / myproject

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[b] I also do this but it did not change [/ b]

can you tell me how please?
- I'm sure my code works because I just retested at the time on windows
- This type of error message may appear when it was already in our program running but it is not my case (I restarted the PC and started the program (1 time) to be sure)

[nosleduc]

maybe :

LIBS + = -L/usr/local/qwt-6.0.2-svn/lib

it seems a problem of link

[ChrisW67]

Are you guys deliberately inserting extraneous spaces into your [code][/code] blocks or is the forum doing that for you?

Just like on Windows, the LIBS variable specifies search paths for libraries (-L) and the names of the required libraries (-l):

win32 {
  INCLUDEPATH += C:/qwt-6.0.2-svn/include
  LIBS += -LC:/qwt-6.0.2-svn/lib -lqwt6
}
unix {
  INCLUDEPATH += /usr/local/qwt-6.0.2-svn/include
  LIBS += -L/usr/local/qwt-6.0.2-svn/lib -lqwt6
}

win32 {
  INCLUDEPATH += C:/qwt-6.0.2-svn/include
  LIBS += -LC:/qwt-6.0.2-svn/lib -lqwt6
}
unix {
  INCLUDEPATH += /usr/local/qwt-6.0.2-svn/include
  LIBS += -L/usr/local/qwt-6.0.2-svn/lib -lqwt6
}

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Only the paths change.

[21did21]

thank for your help

maybe :
LIBS + = -L/usr/local/qwt-6.0.2-svn/lib
it seems a problem of link

when i put this "-L" a lot of error appears

Are you guys deliberately inserting extraneous spaces into your [code][/code] blocks or is the forum doing that for you?

it's the forum which insert spaces

Just like on Windows, the LIBS variable specifies search paths for libraries (-L) and the names of the required libraries (-l):

unix {
  INCLUDEPATH += /usr/local/qwt-6.0.2-svn/include
  LIBS += -L/usr/local/qwt-6.0.2-svn/lib -lqwt6
}

unix {
  INCLUDEPATH += /usr/local/qwt-6.0.2-svn/include
  LIBS += -L/usr/local/qwt-6.0.2-svn/lib -lqwt6
}

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Only the paths change.

it don't works

[ChrisW67]

Excellent, so we have "a lot of error appears" and "it don't works" but absolutely no attempt to describe why or how it doesn't work.

What do you expect us to do to help?

[wysota]

it's the forum which insert spaces

No, it's not:

DEPENDPATH += /home/first name/myproject

DEPENDPATH += /home/first name/myproject

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[Uwe]

CONFIG += qwt

CONFIG += qwt

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When you have installed Qwt properly this line does all what you need.

Uwe

[21did21]

ok thanks, i will try to re-install

see you later