[Qt-interest] Qt 4.5+MinGW+ld.exe+DLL

[John McClurkin]

Andre Haupt wrote:
> On Tue, Aug 04, 2009 at 12:04:19PM -0400, alvaro wrote:
>> Hi everyone,
>>
>> I have a problem with MinGW. I have installed Qt-4.5 with MinGW and Qt 
>> creator and wrote a library (DLL) that a want to use in another project, 
>> actually another DLL library and this libraries i want to add to a Qt 
>> GUI application.
>>
>> When compiling ld.exe do not find the DLL library that i want. This is 
>> my QMake project file.
>>
>> # -------------------------------------------------
>>
>> # Project created by QtCreator 2009-08-02T20:27:22
>>
>> # -------------------------------------------------
>>
>> QT -= core \
>>
>> gui
>>
>> CONFIG += no_lflags_merge
>>
>> TARGET = datos
>>
>> TEMPLATE = lib
>>
>> DEFINES += DATOS_LIBRARY
>>
>> SOURCES += datos.cpp \
>>
>> sqlfactory.cpp \
>>
>> sqlusuario.cpp
>>
>> HEADERS += datos.h \
>>
>> datos_global.h \
>>
>> sqlfactory.h \
>>
>> sqlusuario.h
>>
>> INCLUDEPATH = -I"c:/Archivos de programa/postgreSQL/8.3/include" \
>>
>> -I"d:/tesis/src/logica" \
>>
>> "d:/tesis/src/datos"
>>
>> win32:LIBS += -L"c:/Archivos de programa/postgreSQL/8.3/lib" \
>>
>> -lpq \
>>
>> -L"d:/tesis/src/logica" \
>> -llogica
>>
>>
>> And the compilers error is:
>>
>> C:\Qt\2009.02\mingw\bin\..\lib\gcc\mingw32\3.4.2\..\..\..\..\mingw32\bin\ld.exe: 
>> cannot find -llogica
>>
>>
>> Searching the web a found that ld.exe only look for files on the default 
>> paths. My library is not in the default path. I've add the path of the 
>> libraries to de Windows PATH but nothing.
> With the -L switch you add the specified path to the library path, so it should find it.
> 
> Do you really have liblogica.a available under this path?
> 
> regards,
> 
> Andre

If the OP created a dynamic library, wouldn't the name be liblogica.dll?