Qt - Using asterisk (*) in .pro-File with directories

Question

I have a .pro file which looks like:

SOURCES += myfolder/source1.cpp \
           myfolder/source2.cpp
HEADERS  += myfolder/header1.h\
            myfolder/header2.h
FORMS    += myfolder/form1.ui\
            myfolder/form2.ui

And everything works great. However, if I try to use an asterisk to include all the files, i.e.:

SOURCES  += myfolder/*.cpp
HEADERS  += myfolder/*.h
FORMS    += myfolder/*.ui

qmake throws a file-not-found-error:

WARNING: Failure to find: myfolder\*.cpp
[...]
:-1: error: No rule to make target `myfolder/*.cpp', needed by `release/source1.o'.  Stop.

In both cases, Qt-Creator can find the files.

Is there a way to use the asterisk? It's annoying to type the files manually.

Thank you!

[EDIT: Qt 4.8.4, Windows 7, Qt-Creator 2.6.1. Sry for forgetting this thought it isnt needed.]

[EDIT: Found solution: http://qt-project.org/forums/viewthread/1127 . Thank you anyway!]

What version of Qt, and what OS, are you using, please? – Clare Macrae May 07 '13 at 04:21 — Clare Macrae, May 07 '13 at 04:21

score 30 · Answer 1 · answered Dec 13 '16 at 12:58

30

In qmake 3.0, at least, it's possible to use something like:

SOURCES = $$files(*.cpp, true)
HEADERS = $$files(*.h, true)

The true argument will cause the files function to recursively find all files matching the pattern given by the first argument.

answered Dec 13 '16 at 12:58

jco

1,335
3
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4

Small note that doesn’t seem to be documented: `$$files()` doesn’t seem to support wildcards for folders, only for files. – Frederik Mar 05 '19 at 09:34

score 5 · Accepted Answer · answered May 08 '13 at 11:27

At first, using asterisk is bad practice - despite that qmake allows it, QtCreator cannot edit such *.pro correctly on adding new, renaming or deleting file. So try to add new files with "New file" or "Add existing files" dialogs.

QMake has for loop and function $$files(directory_path: String). Also append files to SOURCES or HEADERS variable respectively.

Brief example, which adds all files, but not directories, to variable FILES (not affect build or project tree):

files = $$files($$PWD/src)
win32:files ~= s|\\\\|/|g
for(file, files):!exists($$file/*):FILES += $$file

If you want to check if file is *.cpp, try to use contains($$file, ".cpp").

files = $$files($$PWD/src)
win32:files ~= s|\\\\|/|g
for(file, files):!exists($$file/*):contains($$file, ".cpp"):SOURCES += $$file

for me worked only with the asterisk at the end, when calling `$$files(...)`, i.e. in this example would be `files = $$files($$PWD/src/*)` instead of `files=$$files($$PWD/src)`. I use Qt 5.15.1 — Dmitrii Semikin, Sep 11 '20 at 21:23

Qt - Using asterisk (*) in .pro-File with directories

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