Dear all friends, When I try to compile Qt 4.7 on my host Ubuntu 10.10 Configure OK. When make, it gives -march=armv4t unknown switch I already did all necessary edit. When I remove -march & -mtune switch, all is OK. But compile results ARMV5T architecture & give segmentation fault. Plz help me With Thanks
Just had another try at cross-compiling 4.7.2 First are you just doing 4.7? Why not 4.7.2? Better shows us your qmake.conf and your complete ./configure command. Which cross-compiler are you using and you have exported the path to it?
Let's backup a bit . . . are you compiling the X11 version or cross-compiling the Qt/embedded version? Note: even those two files on the download site at Nokia have the same name and are the same size they are two quite different files. The first file is for your desktop (X11) installation and the second (Qt/embedded Linux) has to be cross-compiled for use on the target.
I also try with Qt 4.7.2 but same result Here is qmake.conf # # qmake configuration for building with arm-none-linux-gnueabi-g++ # include(../../common/g++.conf) include(../../common/linux.conf) include(../../common/qws.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) Here is ./configure command ./configure -embedded arm -xplatform qws/linux-arm-g++ -prefix /opt/qt-everywhere-opensource-src-4.7.2 -little-endian -no-qt3support -no-largefile -no-cups -qt-gfx-transformed -no-openssl -no-webkit -nomake tools -optimized-qmake I used compiler arm-linux-gcc 4.3.2 toolschain provided in DVD with purchase of mini2440
Before we go any further . . . have you compiled the X11 version and checked to see that it works. Try some of the examples or demos. Then other people suggest installed Qt/embedded for the host with the virtual frame buffer and learning to use that BEFORE cross-compiling for the traget. However, here is my qmake.conf (note full path to compiler) # # qmake configuration for building with arm-linux-g++ # include(../../common/g++.conf) include(../../common/linux.conf) include(../../common/qws.conf) # compiler flags to take advantage of the ARM architecture QMAKE_CFLAGS_RELEASE += -msoft-float -D_GCC_FLOAT_NOT_NEED -march=armv4t -mtune=arm920t QMAKE_CXXFLAGS_RELEASE += -msoft-float -D_GCC_FLOAT_NOT_NEED -march=armv4t -mtune=arm920t # modifications to g++.conf QMAKE_CC = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-gcc QMAKE_CXX = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-g++ QMAKE_LINK = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-g++ QMAKE_LINK_SHLIB = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-g++ # modifications to linux.conf QMAKE_AR = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-ar cqs QMAKE_OBJCOPY = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-objcopy QMAKE_RANLIB = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-ranlib QMAKE_INCDIR += /usr/local/tslib/include QMAKE_LIBDIR += /usr/local/tslib/lib load(qt_config) CU tomorrow.
Finally, I can make it... :) Thanks for your advice... I changed like that.. # modifications to g++.conf QMAKE_CC = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-gcc -msoft-float -D_GCC_FLOAT_NOT_NEED -march=armv4t -mtune=arm920t QMAKE_CXX = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-g++ -msoft-float -D_GCC_FLOAT_NOT_NEED -march=armv4t -mtune=arm920t QMAKE_LINK = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-g++ -msoft-float -D_GCC_FLOAT_NOT_NEED -march=armv4t -mtune=arm920t QMAKE_LINK_SHLIB = /usr/local/arm/4.3.2/bin/arm-none-linux-gnueabi-g++ -msoft-float -D_GCC_FLOAT_NOT_NEED -march=armv4t -mtune=arm920t Previously, my error may be due to absence of absolute path to QMAKE_CC QMAKE_CXX I tried it for about one week...
So, you managed to cross-compile Qt without errors. You are lucky I have been trying on and off for about a year now!