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Thread: qmake: create a dependency to an arbitrary file.

  1. #1
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    Default qmake: create a dependency to an arbitrary file.

    Hi,

    I want to create a dependency between a file in my project and an arbitrary other file that may or may not be in the project. Say for example foo.cpp is dependent /etc/passwd. This is pretty much basic `make` but I can't figure out how to do this from qmake.

    To clarify; qmake will generate a makefile with the following lines:
    Qt Code:
    1. ...
    2. all: Makefile $(TARGET)
    3.  
    4. $(TARGET): $(OBJECTS)
    5. ...
    To copy to clipboard, switch view to plain text mode 
    I want to add an arbitrary dependency to $(TARGET). So its becomes:

    Qt Code:
    1. ...
    2. all: Makefile $(TARGET)
    3.  
    4. $(TARGET): $(OBJECTS) /etc/passwd
    5. ...
    To copy to clipboard, switch view to plain text mode 

    Thanks.
    Last edited by 33333; 28th June 2014 at 08:20.

  2. #2
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    Default Re: qmake: create a dependency to an arbitrary file.

    Either PRE_TARGETDEPS or POST_TARGETDEPS:
    Qt Code:
    1. TEMPLATE = app
    2. TARGET =
    3. DEPENDPATH += .
    4. INCLUDEPATH += .
    5. PRE_TARGETDEPS += doit_before
    6. POST_TARGETDEPS += doit_after
    7.  
    8. # Input
    9. SOURCES += main.cpp
    To copy to clipboard, switch view to plain text mode 
    generates:
    Qt Code:
    1. ...
    2. all: Makefile $(TARGET)
    3.  
    4. $(TARGET): doit_before $(OBJECTS) doit_after
    5. $(LINK) $(LFLAGS) -o $(TARGET) $(OBJECTS) $(OBJCOMP) $(LIBS)
    6. ...
    To copy to clipboard, switch view to plain text mode 
    and if doit_before or doit_after are files changing them has the desired effect of rebuilding the target.

  3. #3
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    Default Re: qmake: create a dependency to an arbitrary file.

    To easy! Thx.

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