QMAKE custom DEFINES & CONFIG

[sheeeng]

Hi,

I'm new to Qt and its qmake functions. I have read through the Qt Assistant but I do not comprehend everything yet.

May I know how can we add custom DEFINES & CONFIG in the *.pro and *.pri files?

E.g.

win32 {
}
macx {
}

win32 {
}
macx {
}

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If I need a class in Windows only, can I do a *pro file as below? However, it is not working as I expected.

win32:DEFINES += WIN32_MYCLASS //(but not working also in qmake)
win32:CONFIG += win32_myclass //(but not working in *.cpp during #ifdef #endif)

win32:DEFINES += WIN32_MYCLASS //(but not working also in qmake)
win32:CONFIG += win32_myclass //(but not working in *.cpp during #ifdef #endif)

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Please advice. Thanks in advance.

[Lykurg]

If you want different versions of a file be included use:

win32 {
  INCLUDE += Windows/myfile.h
}
macx {
  INCLUDE += Mac/myfile.h
}

win32 {
  INCLUDE += Windows/myfile.h
}
macx {
  INCLUDE += Mac/myfile.h
}

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or for different code in one file use

MyClass::whatEver()
{
#ifdef Q_OS_UNIX
  // do fancy unix stuff
#endif
#ifdef Q_OS_WIN32
  // do windows stuff here
#endif
}

MyClass::whatEver()
{
#ifdef Q_OS_UNIX
  // do fancy unix stuff
#endif
#ifdef Q_OS_WIN32
  // do windows stuff here
#endif
}

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The right code is chosen by the compiler automatically.

[sheeeng]

Thanks, Lykurg for your fast reply! I did understand the part on macx and win32 platform specific codes.

But, what I mean is that how can I separate the C++ classes under single win32 platform?

e.g.
SimpleBuild (contains ClassA only)
AdvancedBuild (contains ClassA, ClassB, and ClassC)

I need to do different *pro file that uses different custom configuration to add files.

win32:DEFINES += WIN32_ADVANCED
win32:CONFIG += win32_Advanced
 
SUBDIRS += simple_build.pro

win32:DEFINES += WIN32_ADVANCED
win32:CONFIG += win32_Advanced

SUBDIRS += simple_build.pro

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Under SUBDIRS there are WIN32_ADVANCED flags to check whether the class is needed or not.
Then, under a controller class, there is a #ifdef win32_Advanced flag to include its header.

Hope this clarify my query.

[Lykurg]

Ah, ok. Misread it the first time. Then I would suggest in your pro file:

contains(DEFINES, WIN32_ADVANCED) {
   message(Building the advanced version...)
}

contains(DEFINES, WIN32_ADVANCED) {
   message(Building the advanced version...)
}

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with

$qmake mypro.pro

$qmake mypro.pro

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build normal mode, and

$qmake "DEFINES += WIN32_ADVANCED" mypro.pro

$qmake "DEFINES += WIN32_ADVANCED" mypro.pro

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building the advanced.

Hope you mean that

[sheeeng]

Ah, ok. Misread it the first time. Then I would suggest in your pro file:

contains(DEFINES, WIN32_ADVANCED) {
   message(Building the advanced version...)
}

contains(DEFINES, WIN32_ADVANCED) {
   message(Building the advanced version...)
}

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with

$qmake mypro.pro

$qmake mypro.pro

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build normal mode, and

$qmake "DEFINES += WIN32_ADVANCED" mypro.pro

$qmake "DEFINES += WIN32_ADVANCED" mypro.pro

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building the advanced.

Hope you mean that

Before the contains, how do we add the WIN32_ADVANCED flag?

How do we use that '$qmake" in *.pro file? I'm building using MSVC and opens the *.pro file using Qt-VSIntegration.

Thanks!

[Lykurg]

Before the contains, how do we add the WIN32_ADVANCED flag?

How do we use that '$qmake" in *.pro file? I'm building using MSVC and opens the *.pro file using Qt-VSIntegration.

Thanks!

was a little typo: should be

$ qmake mypro.pro

$ qmake mypro.pro

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and should be indicate - as I don't have thought someone really is using Windows - that that is to type in the console when you building the app. How To integrate it in MSVC I don't know. To be explicate: You set the WIN32_ADVANCED flag via the console when you building.

[sheeeng]

Thanks, Lykurg. However, I did not able to add the custom DEFINES and custom CONFIG succesfully.

[Lykurg]

Ok, here is a console output which I can't better clarify:

lykurg@XXX:~/Dokumente$ cat test.pro
# normal *.pro file here
message(normal stuff)
 
contains(DEFINES, WIN32_ADVANCED) {
  message(WIN32_ADVANCED stuff here)
}
 
lykurg@XXX:~/Dokumente$ qmake test.pro
Project MESSAGE: normal stuff
 
lykurg@XXX:~/Dokumente$ qmake "DEFINES += WIN32_ADVANCED" test.pro
Project MESSAGE: normal stuff
Project MESSAGE: WIN32_ADVANCED stuff here
 
lykurg@XXX:~/Dokumente$

lykurg@XXX:~/Dokumente$ cat test.pro
# normal *.pro file here
message(normal stuff)

contains(DEFINES, WIN32_ADVANCED) {
  message(WIN32_ADVANCED stuff here)
}

lykurg@XXX:~/Dokumente$ qmake test.pro
Project MESSAGE: normal stuff

lykurg@XXX:~/Dokumente$ qmake "DEFINES += WIN32_ADVANCED" test.pro
Project MESSAGE: normal stuff
Project MESSAGE: WIN32_ADVANCED stuff here

lykurg@XXX:~/Dokumente$

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[sheeeng]

Thanks Lykurg. I guess I have to convert output to Qt-Windows and then open using Qt-VsIntegration.

[sheeeng]

I think I should rephrase my question...

How to carry forward "DEFINES += WIN32_ADVANCED" to all *pro under SUBDIRS?

[Lykurg]

global.pro

TEMPLATE = subdirs
SUBDIRS = testsub

TEMPLATE = subdirs
SUBDIRS = testsub

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qmake "DEFINES += WIN32_ADVANCED"  global.pro

qmake "DEFINES += WIN32_ADVANCED"  global.pro

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results in Makefile

//..
testsub/$(MAKEFILE): 
	@$(CHK_DIR_EXISTS) testsub/ || $(MKDIR) testsub/ 
	cd testsub/ && $(QMAKE) testsub.pro -unix DEFINES\ +=\ WIN32_ADVANCED -o $(MAKEFILE)
sub-testsub-qmake_all:  FORCE
	@$(CHK_DIR_EXISTS) testsub/ || $(MKDIR) testsub/ 
	cd testsub/ && $(QMAKE) testsub.pro -unix DEFINES\ +=\ WIN32_ADVANCED -o $(MAKEFILE)
//..

//..
testsub/$(MAKEFILE): 
	@$(CHK_DIR_EXISTS) testsub/ || $(MKDIR) testsub/ 
	cd testsub/ && $(QMAKE) testsub.pro -unix DEFINES\ +=\ WIN32_ADVANCED -o $(MAKEFILE)
sub-testsub-qmake_all:  FORCE
	@$(CHK_DIR_EXISTS) testsub/ || $(MKDIR) testsub/ 
	cd testsub/ && $(QMAKE) testsub.pro -unix DEFINES\ +=\ WIN32_ADVANCED -o $(MAKEFILE)
//..

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just fine