Cross compiling Qt 4 apps for linux

[Lykurg]

I have a cross compiler for linux on windows.how can i use it to cross compile a Qt 4 app for linux?

Well let me answer with another question:

I have a cat. Is she black or withe?

...maybe it would be helpful if you tell us which compiler do you have! And a general answer: use qmake with the corresponding SPEC and then simply compile.

[Dante]

Ok,Excuse me
It is the g++-linux for cygwin 2.5
And what is SPEC and how can i do the thing you mentioned?
thanks again

[Lykurg]

when qmake generates the make files it has to know for what plattform it should be done, so use QMAKESPEC or the -spec flag to set your environment: linux-***. then normaly run make under cygwin and all should be done.

[Dante]

I entered commands below in my project directory:

qmake -project
qmake -spec linux-g++ calc++.pro

then inside the cygwin shell ,in the project directory,I entered the make command but it answered:

Makefile:104: *** multiple target patterns. Stop.

what should i do?
And I thought I should use a cross-compiler like cygwins g++-linux.
And could you explain about the OS modes in qmake?
thanks

[Dante]

You know.I really need the answer of this question.thanks again

[talk2amulya]

i think a cross-compiler is one which compiles for a particular target machine/architecture, not the host machine.. what is the target for your cross compiler

[Dante]

Its Linux and my goal is exactly compiling for a target OS.

[ChrisW67]

I'm going to ask the dumb question here: Leaving Qt aside for the moment, have you been able to cross-compile a simple Hello World application on Windows for Linux?

With your last Makefile error you could try looking at the output of

make -n

make -n

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to see what it is actually trying to do.

[Dante]

It gives the same error with the difference that it prints 66 instead of 104 and it is the same with make itself,too.