Qt5 -- arm porting

I used qt4.6 earlier and made some programs. I feel that the writing interface with C ++ is quite smooth.

If qt5 is available, you must try it.

Try cross-compilation first, because the compilation on PC is normal.

Cross-compilation generally requires consideration of the display mode, whether the acceleration hardware is displayed, whether there is a touch screen, or whether there is a keyboard.

Download qt5, http://releases.qt-project.org/qt5/5.0.1/single/qt-everywhere-opensource-src-5.0.1.tar.gz

2. Decompress

3. modify the configuration file qmake. conf, qtbase/mkspecs/Linux-arm-gnueabi-G ++/qmake. conf.

#
# Qmake configuration for building with arm-Linux-gnueabi-G ++
#

Makefile_generator = Unix
Config + = Incremental gdb_dwarf_index
Qmake_incremental_style = sublib

Qt_qpa_default_platform = linuxfb
Qmake_cflags_release + =-O2-March = armv5te
Qmake_cxxflags_release + =-O2-March = armv5te

Include (../common/Linux. conf)
Include (../common/gcc-base-unix.conf)
Include (../common/g ++-Unix. conf)

# Modifications to G ++. conf
Qmake_cc = arm-None-Linux-gnueabi-gcc
Qmake_cxx = arm-None-Linux-gnueabi-G ++
Qmake_link = arm-None-Linux-gnueabi-G ++
Qmake_link_shlib = arm-None-Linux-gnueabi-G ++

# Modifications to Linux. conf
Qmake_ar = arm-None-Linux-gnueabi-ar cqs
Qmake_objcopy = arm-None-Linux-gnueabi-objcopy
Qmake_strip = arm-None-Linux-gnueabi-strip
Load (qt_config)

4. Compile the script, arm_config

Make clean
./Configure-V \
-Prefix/home/ALSA/cqtlib/emb5.0 /\
-Confirm-license \
-Opensource \
-Release \
-Make libs \
-Xplatform Linux-arm-gnueabi-G ++ \
-Optimized-qmake \
-PCH \
-QT-SQL-SQLite \
-QT-libjpeg \
-QT-zlib \
-No-OpenGL \
-No-SSE-no-sse2 \
-No-OpenSSL \
-No-NIS \
-No-cups \
-No-glib \
-No-xcursor-no-xfixes-no-xrandroid-no-xrender \
-No-separate-debug-Info \
-Nomake examples-nomake tools-nomake docs

5. Execute the arm_config file to generate QT-related projects.

6 Make

An error occurred while making: qtextcodec. cpp undefined reference to '_ sync_bool_compare_and_swap_4

Someone found this wrong http://qt-project.org/forums/viewthread/16071.

It should be a problem with the compiler. Currently, arm-None-Linux-gnueabi 4.4 is used for compilation. It is estimated to be a little higher, such as version 4.7 or 4.6 ..

Waiting for trial