.pro file creates only dll - how do i build a lib too?

nirh

Hi All,

When building the next .pro file it produces only .dll file, How can i get a .lib file too(On windows platform) ?

What am i missing ?

Thanks,

#-------------------------------------------------

Project created by QtCreator 2016-10-14T03:25:26

#-------------------------------------------------

QT -= gui

TARGET = LoggerLib
TEMPLATE = lib
CONFIG += debug

HEADERS += logger.h
win32 {
message(Build win32 LoggerLib)

message(pwd=$$PWD)
contains(QMAKE_HOST.arch, X86_64) {
    QMAKE_LFLAGS += /MACHINE:X64
} else {
    QMAKE_LFLAGS += /MACHINE:X86
    QMAKE_LFLAGS += /NOENTRY
}

release:QMAKE_CXXFLAGS += /MT
QMAKE_CXXFLAGS += /MTd

QMAKE_CXXFLAGS_DEBUG += /MTd
QMAKE_CXXFLAGS_RELEASE += /MT

CONFIG(debug, debug|release){
    DESTDIR = $$_PRO_FILE_PWD_/../Debug
    OBJECTS_DIR = $$_PRO_FILE_PWD_/../Debug
    MOC_DIR = $$_PRO_FILE_PWD_/../Debug
    RCC_DIR = $$_PRO_FILE_PWD_/../Debug
}


win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../../TcpComp/3rdParty/log4cxx/log4cxx/projects/release/ -llog4cxx
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../../TcpComp/3rdParty/log4cxx/log4cxx/projects/Debug/ -llog4cxx

INCLUDEPATH += $$PWD/../../../TcpComp\3rdParty\log4cxx\log4cxx\src\main\include
DEPENDPATH += $$PWD/../../../TcpComp/3rdParty/log4cxx/log4cxx/projects/Debug

}

raven-worx

@nirh
what compiler are you using? MSVC?

Are your lib exporting symbols? If not there is no .lib file created.

nirh

Hi @raven-worx,

I am a Linux programer, But according to your Question, I dont think that my Lib exports any symbols,
However the reason i thought that the .pro should produce a lib file is because i had another .pro file that is lookin to link with thge above lib.

How can i tell the next .pro file to use a dll insted?

Thanks

SGaist

Hi,

You are likely having a static library on one hand and a dynamic one on the other. In any case, export the symbols of your library properly and should be good to go. Here how to do it.

nirh

Hi @SGaist,

I cannot add the Q_DECL_EXPORT or Q_DECL_IMPORT because i am linking to a third party code ( i just use a header with MACROS to that third party library),

Maybe i need to link to the dll it creats, But the lib i linking with always conflicts eith the machine type,

LNK1112: module machine type 'x64' conflicts with target machine type 'X86' ?

Any idea please ?

Thanks,

Nirh

nirh

Hi

Its solved by adding:
CONFIG += staticlib

Thanks,

Nirh

SGaist

You can also simply write your own macros based on Q_DECL_XXX if you don't want Qt stuff in your header.

You were trying to link a 64bit build of your library with a 32bit target.