Multiple binaries from same source files

[deleted287]

Hi there,

We have a complex build that's set up with qmake at the moment. We need to build libraries and executables with 4 different options, which correspond to:

1. Single precision, serial
2. Double precision, serial
3. Single precision, parallel
4. Double precision, parallel

The pattern that we've followed up to now is to have a lib_common.pri file which lists the sources, and then four *.pro files like:

lib_s_s.pro
lib_d_s.pro
lib_s_p.pro
lib_d_p.pro

which set the compiler options specific to each version of the library, and then include the lib_common.pri file. We then have an overarching 'lib.pro' file which is like:

TEMPLATE = subdirs
SUBDIRS = \
     lib_s_s.pro \
     lib_d_s.pro \
     lib_s_p.pro \
     lib_d_p.pro 

While this works, we're finding that it's not a very elegant solution, and it means that for e.g. for a test binary, we can have a single source file and 6 build files.

Is there any way to do this more elegantly? Ideally, we'd like to be able to do something akin to:

for precision in [single, double]
    for concurrency in [serial, parallel]
        CONFIG = $precision $concurrency
        TARGET = lib_${precision}_${concurrency}
        SOURCES = somesources.cpp
    end for
end for

which would allow us to keep each library/executable's build script to at most one or two files.