Unable to detect the platform from environment. Use -platform command lineargument or set the QMAKESPEC environment variable and run configure again
See the README file for a list of supported operating systems and compilers.
Usage: configure [-buildkey <key>]
       [-release] [-debug] [-debug-and-release] [-shared] [-static]
       [-no-fast] [-fast] [-no-exceptions] [-exceptions]
       [-no-accessibility] [-accessibility] [-no-rtti] [-rtti]
       [-no-stl] [-stl] [-no-sql-<driver>] [-qt-sql-<driver>]
       [-plugin-sql-<driver>] [-system-sqlite] [-arch <arch>]
       [-D <define>] [-I <includepath>] [-L <librarypath>]
       [-help] [-no-dsp] [-dsp] [-no-vcproj] [-vcproj]
       [-no-qmake] [-qmake] [-dont-process] [-process]
       [-no-style-<style>] [-qt-style-<style>] [-redo]
       [-saveconfig <config>] [-loadconfig <config>]
       [-qt-zlib] [-system-zlib] [-no-gif] [-qt-gif] [-no-libpng]
       [-qt-libpng] [-system-libpng] [-no-libtiff] [-qt-libtiff]
       [-system-libtiff] [-no-libjpeg] [-qt-libjpeg] [-system-libjpeg]
       [-no-libmng] [-qt-libmng] [-system-libmng] [-no-qt3support] [-mmx]
       [-no-mmx] [-3dnow] [-no-3dnow] [-sse] [-no-sse] [-sse2] [-no-sse2]
       [-no-iwmmxt] [-iwmmxt] [-openssl] [-openssl-linked]
       [-no-openssl] [-no-dbus] [-dbus] [-dbus-linked] [-platform <spec>]
       [-qtnamespace <namespace>] [-qtlibinfix <infix>] [-no-phonon]
       [-phonon] [-no-phonon-backend] [-phonon-backend]
       [-no-multimedia] [-multimedia] [-no-audio-backend] [-audio-backend]
       [-no-script] [-script] [-no-scripttools] [-scripttools]
       [-no-webkit] [-webkit] [-webkit-debug] [-graphicssystem 
       raster|opengl|openvg]

Installation options:

 You may use these options to turn on strict plugin loading:

    -buildkey <key> .... Build the Qt library and plugins using the specified 
                         <key>.  When the library loads plugins, it will only 
                         load those that have a matching <key>.

Configure options:

 The defaults (*) are usually acceptable. A plus (+) denotes a default value 
 that needs to be evaluated. If the evaluation succeeds, the feature is 
 included. Here is a short explanation of each option:

    -release ........... Compile and link Qt with debugging turned off.
 *  -debug ............. Compile and link Qt with debugging turned on.
 +  -debug-and-release . Compile and link two Qt libraries, with and without 
                         debugging turned on.

    -opensource ........ Compile and link the Open-Source Edition of Qt.
    -commercial ........ Compile and link the Commercial Edition of Qt.

    -developer-build ... Compile and link Qt with Qt developer options 
                         (including auto-tests exporting)

 *  -shared ............ Create and use shared Qt libraries.
    -static ............ Create and use static Qt libraries.

    -ltcg .............. Use Link Time Code Generation. (Release builds only)
 *  -no-ltcg ........... Do not use Link Time Code Generation.

 *  -no-fast ........... Configure Qt normally by generating Makefiles for all 
                         project files.
    -fast .............. Configure Qt quickly by generating Makefiles only for 
                         library and subdirectory targets.  All other Makefiles
                         are created as wrappers which will in turn run qmake

    -no-exceptions ..... Disable exceptions on platforms that support it.
 *  -exceptions ........ Enable exceptions on platforms that support it.

    -no-accessibility .. Do not compile Windows Active Accessibility support.
 *  -accessibility ..... Compile Windows Active Accessibility support.

    -no-stl ............ Do not compile STL support.
 *  -stl ............... Compile STL support.

    -no-sql-<driver> ... Disable SQL <driver> entirely, by default none are 
                         turned on.
    -qt-sql-<driver> ... Enable a SQL <driver> in the Qt Library.
    -plugin-sql-<driver> Enable SQL <driver> as a plugin to be linked to at run
                         time.
                         Available values for <driver>:
                           mysql
                           psql
                           oci
                           odbc
                           tds
                           db2
 +                         sqlite
                           sqlite2
                           ibase
                         (drivers marked with a '+' have been detected as 
                         available on this system)

    -system-sqlite ..... Use sqlite from the operating system.

    -no-qt3support ..... Disables the Qt 3 support functionality.

    -no-opengl ......... Disables OpenGL functionality

    -opengl <api> ...... Enable OpenGL support with specified API version.
                         Available values for <api>:
 *                         desktop - Enable support for Desktop OpenGL
                           es1 - Enable support for OpenGL ES Common Profile
                           es2 - Enable support for OpenGL ES 2.0
 *  -no-openvg ......... Disables OpenVG functionality

    -openvg ............ Enables OpenVG functionality
                         Requires EGL support, typically supplied by an OpenGL
                         or other graphics implementation

    -platform <spec> ... The operating system and compiler you are building on.
                         (default %QMAKESPEC%)

    -xplatform <spec> .. The operating system and compiler you are cross 
                         compiling to.

                         See the README file for a list of supported operating 
                         systems and compilers.

    -qtnamespace <namespace> Wraps all Qt library code in 'namespace name {...}
    -qtlibinfix <infix> Renames all Qt* libs to Qt*<infix>

    -D <define> ........ Add an explicit define to the preprocessor.
    -I <includepath> ... Add an explicit include path.
    -L <librarypath> ... Add an explicit library path.
    -l <libraryname> ... Add an explicit library name, residing in a 
                         librarypath.

    -graphicssystem <sys> Specify which graphicssystem should be used.
                          Available values for <sys>:
 *                         raster - Software rasterizer
                           opengl - Using OpenGL acceleration, experimental!
                           openvg - Using OpenVG acceleration, experimental!

    -help, -h, -? ...... Display this information.

Third Party Libraries:

    -qt-zlib ........... Use the zlib bundled with Qt.
 +  -system-zlib ....... Use zlib from the operating system.
                         See http://www.gzip.org/zlib

    -no-gif ............ Do not compile GIF reading support.
 +  -qt-gif ............ Compile GIF reading support.
                         See also src/gui/image/qgifhandler_p.h

    -no-libpng ......... Do not compile PNG support.
    -qt-libpng ......... Use the libpng bundled with Qt.
 +  -system-libpng ..... Use libpng from the operating system.
                         See http://www.libpng.org/pub/png

    -no-libmng ......... Do not compile MNG support.
    -qt-libmng ......... Use the libmng bundled with Qt.
 +  -system-libmng ..... Use libmng from the operating system.
                         See See http://www.libmng.com

    -no-libtiff ........ Do not compile TIFF support.
    -qt-libtiff ........ Use the libtiff bundled with Qt.
 +  -system-libtiff .... Use libtiff from the operating system.
                         See http://www.libtiff.org

    -no-libjpeg ........ Do not compile JPEG support.
    -qt-libjpeg ........ Use the libjpeg bundled with Qt.
 +  -system-libjpeg .... Use libjpeg from the operating system.
                         See http://www.ijg.org

Qt for Windows only:

    -no-dsp ............ Do not generate VC++ .dsp files.
 *  -dsp ............... Generate VC++ .dsp files, only if spec "win32-msvc".

    -no-vcproj ......... Do not generate VC++ .vcproj files.
 *  -vcproj ............ Generate VC++ .vcproj files, only if platform 
                         "win32-msvc.net".

    -no-incredibuild-xge Do not add IncrediBuild XGE distribution commands to 
                         custom build steps.
 +  -incredibuild-xge .. Add IncrediBuild XGE distribution commands to custom 
                         build steps. This will distribute MOC and UIC steps, 
                         and other custom buildsteps which are added to the 
                         INCREDIBUILD_XGE variable.
                         (The IncrediBuild distribution commands are only added
                         to Visual Studio projects)

    -no-plugin-manifests Do not embed manifests in plugins.
 *  -plugin-manifests .. Embed manifests in plugins.

    -no-qmake .......... Do not compile qmake.
 *  -qmake ............. Compile qmake.

    -dont-process ...... Do not generate Makefiles/Project files. This will 
                         override -no-fast if specified.
 *  -process ........... Generate Makefiles/Project files.

    -no-rtti ........... Do not compile runtime type information.
 *  -rtti .............. Compile runtime type information.

    -no-mmx ............ Do not compile with use of MMX instructions
 +  -mmx ............... Compile with use of MMX instructions
    -no-3dnow .......... Do not compile with use of 3DNOW instructions
 +  -3dnow ............. Compile with use of 3DNOW instructions
    -no-sse ............ Do not compile with use of SSE instructions
 +  -sse ............... Compile with use of SSE instructions
    -no-sse2 ........... Do not compile with use of SSE2 instructions
 +  -sse2 .............. Compile with use of SSE2 instructions
    -no-openssl ........ Do not compile in OpenSSL support
 +  -openssl ........... Compile in run-time OpenSSL support
    -openssl-linked .... Compile in linked OpenSSL support
    -no-dbus ........... Do not compile in D-Bus support
 +  -dbus .............. Compile in D-Bus support and load libdbus-1 dynamicall
                         y
    -dbus-linked ....... Compile in D-Bus support and link to libdbus-1
    -no-phonon ......... Do not compile in the Phonon module
 +  -phonon ............ Compile the Phonon module (Phonon is built if a decent
                         C++ compiler is used.)
    -no-phonon-backend . Do not compile the platform-specific Phonon backend-pl
                         ugin
 *  -phonon-backend .... Compile in the platform-specific Phonon backend-plugin
    -no-multimedia ..... Do not compile the multimedia module
 *  -multimedia ........ Compile in multimedia module
    -no-audio-backend .. Do not compile in the platform audio backend into QtMu
                         ltimedia
 +  -audio-backend ..... Compile in the platform audio backend into QtMultimedi
                         a
    -no-webkit ......... Do not compile in the WebKit module
 +  -webkit ............ Compile in the WebKit module (WebKit is built if a 
                         decent C++ compiler is used.)
    -webkit-debug ...... Compile in the WebKit module with debug symbols.
    -no-script ......... Do not build the QtScript module.
 +  -script ............ Build the QtScript module.
    -no-scripttools .... Do not build the QtScriptTools module.
 +  -scripttools ....... Build the QtScriptTools module.
    -no-declarative .... Do not build the declarative module
 +  -declarative ....... Build the declarative module
    -no-declarative-debug Do not build the declarative debugging support
 *  -declarative-debug . Build the declarative debugging support
    -arch <arch> ....... Specify an architecture.
                         Available values for <arch>:
 *                         windows
                           windowsce
                           symbian
                           boundschecker
                           generic

    -no-style-<style> .. Disable <style> entirely.
    -qt-style-<style> .. Enable <style> in the Qt Library.
                         Available styles: 
 *                         windows
 +                         windowsxp
 +                         windowsvista
 *                         plastique
 *                         cleanlooks
 *                         motif
 *                         cde
                           windowsce
                           windowsmobile
                           s60

    -no-native-gestures Do not use native gestures on Windows 7.
 *  -native-gestures ... Use native gestures on Windows 7.
 *  -no-mp ............. Do not use multiple processors for compiling with MSVC
    -mp ................ Use multiple processors for compiling with MSVC (-MP)
    -loadconfig <config> Run configure with the parameters from file configure_
                         <config>.cache.
    -saveconfig <config> Run configure and save the parameters in file 
                         configure_<config>.cache.
    -redo .............. Run configure with the same parameters as last time.

Qt for Windows CE only:

    -no-iwmmxt ......... Do not compile with use of IWMMXT instructions
 +  -iwmmxt ............ Do compile with use of IWMMXT instructions (Qt for 
                         Windows CE on Arm only)
 *  -no-crt ............ Do not add the C runtime to default deployment rules
    -qt-crt ............ Qt identifies C runtime during project generation
    -crt <path> ........ Specify path to C runtime used for project generation.
    -no-cetest ......... Do not compile Windows CE remote test application
 +  -cetest ............ Compile Windows CE remote test application
    -signature <file> .. Use file for signing the target project
 *  -phonon-wince-ds9 .. Enable Phonon Direct Show 9 backend for Windows CE
Qt for Symbian OS only:

 *  -no-freetype ....... Do not compile in Freetype2 support.
    -qt-freetype ....... Use the libfreetype bundled with Qt.
    -fpu <flags> ....... VFP type on ARM, supported options: softvfp(default) |
                         vfpv2 | softvfp+vfpv2
    -no-s60 ............ Do not compile in S60 support.
 *  -s60 ............... Compile with support for the S60 UI Framework
    -no-usedeffiles .... Disable the usage of DEF files.
    -usedeffiles ....... Enable the usage of DEF files.