subdirs with more than one level

aethelnorn

I am trying to construct a project file. I can see the logic of the subdirs template, but the docs only seem to describe a simple case where the app depends upon lib and lib2.

TEMPLATE = subdirs
SUBDIRS =
lib2 \ # sub-project names
lib
app
lib2.subdir = src/lib2
lib.subdir = src/lib
app.subdir = src/app
app.depends = lib lib2

What if app depends on lib and lib depends upon lib1 and lib2? Do I add the line in bold

TEMPLATE = subdirs
SUBDIRS =
lib2 \
lib1 \
lib
app
lib1.subdir = src/lib1
lib2.subdir = src/lib2
lib.subdir = src/lib
app.subdir = src/app
app.depends = lib lib2
lib.depends = lib1 lib2

aethelnorn

@aethelnorn said in subdirs with more than one level:

app.depends = lib lib2

Should have been
app.depends = lib

SGaist

Hi,

Yes

See this blog post for more details.

aethelnorn

OK thanks for confirming that.

And that is twice today I have been threatened with kitten deaths. But think of all the fledgling birds I could save.......

Aethelnorn

aha_1980

@aethelnorn

lib1.subdir = src/lib1
lib2.subdir = src/lib2
lib.subdir = src/lib

Please note that you dont need these lines if the pro file is directly in src and named src.pro

Having multiple nested pro files helps to reduce redundany. Just my 2 cent...

aethelnorn

@aha_1980 Not sure I understand... and perhaps I should (I have this perverse need to know what the tool is doing under the covers, and feel uneasy if I don't)

What I think you are saying (and pleae correct me if I am wrong) is:
If I have a sub directory 'src' qmake(?) will automatically search it and if it finds a 'src.pro' will automatically include it.

And further, that I do not need to define all my sub-targets in the top .pro file, but can create a 'tree' of .pro files with targets defined at the lowest appropriate level.

aha_1980

@aethelnorn

What I think you are saying (and pleae correct me if I am wrong) is:
If I have a sub directory 'src' qmake(?) will automatically search it and if it finds a 'src.pro' will automatically include it.

If you reference it with SUBDIRS+=src from the top-level, yes.

And further, that I do not need to define all my sub-targets in the top .pro file, but can create a 'tree' of .pro files with targets

Exactly :)

aha_1980

@aethelnorn you can browse qtbase at http://code.qt.io/cgit/qt/qtbase.git/tree/src to see it in action...

aethelnorn

@aha_1980 OK, thanks, that might make some things more simple.....