Is it possible to use static libraries in non-static applications?

[Blackzero]

I tried to include the ftd2xx library in static mode in my application but it failed and there was an error.
is it not possible to include static libraries in non-static applications?

[Blackzero]

@jsulm I have found a way but I don't know if it will be safe and not degrade the performance of the library.

DEFINES += FTD2XX_STATIC

win32: LIBS += -L$$PWD/Static/amd64/ -lftd2xx

INCLUDEPATH += $$PWD/.
DEPENDPATH += $$PWD/.

win32:!win32-g++: PRE_TARGETDEPS += $$PWD/Static/amd64/ftd2xx.lib
else:win32-g++: PRE_TARGETDEPS += $$PWD/Static/amd64/libftd2xx.a

I added “DEFINES += FTD2XX_STATIC” before the library file is included.

[jsulm]

@Blackzero Was the static lib built using same compiler?

[Blackzero]

@jsulm said in Is it possible to use static libraries in non-static applications?:

Was the static lib built using same compiler?

I'm using MSVC 2019, the library doesn't state what compiler to use.

[Blackzero]

@jsulm I have found a way but I don't know if it will be safe and not degrade the performance of the library.

DEFINES += FTD2XX_STATIC

win32: LIBS += -L$$PWD/Static/amd64/ -lftd2xx

INCLUDEPATH += $$PWD/.
DEPENDPATH += $$PWD/.

win32:!win32-g++: PRE_TARGETDEPS += $$PWD/Static/amd64/ftd2xx.lib
else:win32-g++: PRE_TARGETDEPS += $$PWD/Static/amd64/libftd2xx.a

I added “DEFINES += FTD2XX_STATIC” before the library file is included.