How do I build a static library and executable with Qt?

Question

To simplify the situation, lets say that there are 2 files: core.cpp and main.cpp.

core.cpp contains the functionality of the program and main.cpp contains the basic main() implementation.

I want Qt (using qmake and the .pro files) to

• first build core.a and then
• use that and main.cpp to build main.exe.

How do I set this up in the qmake file?

Answer 1

Filesystem layout:

MyProject |_ myproject.pro |_ core    |_ core.cpp    |_ core.h    |_ core.pro |_ app    |_ main.cpp    |_ app.pro 

myproject.pro:

TEMPLATE = subdirs CONFIG += ordered SUBDIRS = core \           app app.depends = core 

core.pro:

TEMPLATE = lib CONFIG += staticlib HEADERS = core.h SOURCES = core.cpp 

app.pro:

TEMPLATE = app SOURCES = main.cpp LIBS += -L../core -lcore TARGET = ../app-exe # move executable one dire up