(C++) Example 19: STL only console application, use of '-spec cygwin-g++'

 

Sure fail attempt at solving How to cross-compile a Qt Creator project from Ubuntu to a windows executable?.

 

 

Operating system: Ubuntu 10.04 LTS Lucid Lynx

IDE: Qt Creator 2.0.0

Project type: GUI application

Compiler: G++ 4.4.1

Libraries used:

• STL: from GCC, shipped with Qt Creator 2.0.0

Project options:

• Unchecked 'Projects -> Build Settings -> General -> Shadow build'
• In 'Projects -> Build Settings -> Build steps -> qmake -> Additional arguments' added '-spec cygwin-g++' (without the apostrophs)

 

 

 

 

Qt project file

 

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#------------------------------------------------- # # Project created by QtCreator 2010-09-29T10:39:29 # #------------------------------------------------- QT       += core QT       -= gui TARGET = CppQtCrossCompileToWindowsExample19 CONFIG   += console CONFIG   -= app_bundle TEMPLATE = app SOURCES += main.cpp

 

 

 

 

 

main.cpp

 

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#include <iostream> int main() {   std::cout     << "I am\n"     << "* written using Qt Creator under Ubuntu\n"     << "* tested to compile under Ubuntu\n"     << "* tested to create a valid Ubuntu binary\n"     << "* tested to create an invalid Windows executable\n"     << "  (using -spec win32-g++)\n"; }

 

 

 

 

 

Process

 

In Qt Creator, pressing 'Run' resulted in a working Ubuntu executable.

 

Copying the source to a Cygwin folder, a make was attempted:

 

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make

 

Screen output:

 

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/usr/bin/qmake-qt4 -spec /usr/share/qt4/mkspecs/cygwin-g++ -unix CONFIG+=debug -o Makefile CppQtCrossCompileToWindowsExample19.pro /usr/bin/qmake-qt4: /usr/bin/qmake-qt4: cannot execute binary file make: *** [Makefile] Error 126

 

This approach is estimated to be a sure fail.