[Interest] Doubts in the qmake.conf

[Amey Patil]

*Hi,*

*I am configuring Qt5 for beaglebone black which runs ubuntu.*

*this is my configure line, I added so many -no options to reduce the
errors.*


   -

   ./configure -v -opensource -confirm-license -prefix /usr/local/qt5
-no-largefile -no-accessibility -qt-zlib -no-gif -qt-libpng
-qt-libjpeg -no-nis -no-cups -xplatform linux-arm-gnueabi-g++ -device
linux-beaglebone-ubuntu-14.04-g++ -device-option
CROSS_COMPILE=/usr/bin/arm-linux-gnueabi- -qreal float -sysroot
/home/emayssat/sysroot/ubuntu_14.04 -no-opengl -opengl es2 -no-sql-db2
-no-sql-ibase -no-sql-mysql -no-sql-oci -no-sql-odbc -no-sql-psql
-no-sql-sqlite -no-sql-sqlite2 -no-sql-tds -no-sse2 -no-c++11 -no-dbus
-no-mtdev -no-icu -no-pulseaudio -no-xcb



*This is my qmake.conf file, *

   -

   MAKEFILE_GENERATOR      = UNIXCONFIG                 +=
incrementalQMAKE_INCREMENTAL_STYLE =
sublibinclude(../../common/linux.conf)include(../../common/gcc-base-unix.conf)include(../../common/g++-unix.conf)load(device_config)#EMMANUELQMAKE_LIBDIR
          += $$[QT_SYSROOT]/usr/lib/arm-linux-gnueabihf/QMAKE_LIBDIR
        += $$[QT_SYSROOT]/usr/libQMAKE_LIBDIR           +=
$$[QT_SYSROOT]/lib/arm-linux-gnueabihfQMAKE_LIBDIR           +=
$$[QT_SYSROOT]/usr/lib/arm-linux-gnueabihf/mesa-eglQMAKE_INCDIR
   += $$[QT_SYSROOT]/usr/includeQMAKE_INCDIR           +=
$$[QT_SYSROOT]/usr/include/mysqlQMAKE_INCDIR           +=
$$[QT_SYSROOT]/usr/include/freetype2QMAKE_INCDIR           +=
$$[QT_SYSROOT]/usr/include/glib-2.0QMAKE_INCDIR           +=
$$[QT_SYSROOT]/usr/lib/arm-linux-gnueabihf/glib-2.0QMAKE_INCDIR
   += $$[QT_SYSROOT]/usr/lib/arm-linux-gnueabihf/glib-2.0/includeQMAKE_LFLAGS
          += -Wl,-rpath-link,$$[QT_SYSROOT]/usr/lib/arm-linux-gnueabihf#EMMANEULQT_QPA_DEFAULT_PLATFORM
= eglfs# modifications to g++.confQMAKE_CC                =
$${CROSS_COMPILE}gccQMAKE_CXX               =
$${CROSS_COMPILE}g++QMAKE_LINK              =
$${QMAKE_CXX}QMAKE_LINK_SHLIB        = $${QMAKE_CXX}# modifications to
linux.confQMAKE_AR                = $${CROSS_COMPILE}ar
cqsQMAKE_OBJCOPY           = $${CROSS_COMPILE}objcopyQMAKE_NM
      = $${CROSS_COMPILE}nm -PQMAKE_STRIP             =
$${CROSS_COMPILE}stripCOMPILER_FLAGS          = -march=armv7-a
-mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp#COMPILER_FLAGS
= -march=armv7-a -mtune=cortex-a8 -mfpu=vfpv3
-mfloat-abi=softfp#modifications to gcc-base.confQMAKE_CFLAGS
 += $${COMPILER_FLAGS}QMAKE_CXXFLAGS         +=
$${COMPILER_FLAGS}QMAKE_CXXFLAGS_RELEASE += -O3QMAKE_LIBS
+= -lrt -lpthread -ldl# Extra stuff (OpenGL, DirectFB,
...)QMAKE_INCDIR_EGL        =
$$[QT_SYSROOT]/usr/includeQMAKE_LIBDIR_EGL        =
$$[QT_SYSROOT]/usr/libQMAKE_INCDIR_OPENGL_ES2 =
$${QMAKE_INCDIR_EGL}QMAKE_LIBDIR_OPENGL_ES2 =
$${QMAKE_LIBDIR_EGL}QMAKE_INCDIR_OPENVG     =
$${QMAKE_INCDIR_EGL}QMAKE_LIBDIR_OPENVG     =
$${QMAKE_LIBDIR_EGL}QMAKE_LIBS_EGL          = -lEGL -lIMGegl
-lsrv_um#EMMANUELQMAKE_LIBS_EGL          =
-lEGL#EMMANEULQMAKE_LIBS_OPENGL_ES2   = -lGLESv2
$${QMAKE_LIBS_EGL}QMAKE_LIBS_OPENVG       = -lOpenVG
$${QMAKE_LIBS_EGL}# Sanity
checkdeviceSanityCheckCompiler()load(qt_config)



*I have added the QMAKE_LIBDIR AND QMAKE_INCDIR because the compiler was
not able to find few library and header files during configure.*

*Point is, The compilation process is able to atleast detect my target
architecture wen i comment out the line;*

QMAKE_LIBDIR           += $$[QT_SYSROOT]/lib/arm-linux-gnueabihf


*but this gives me libraries not found errors. And when i un-comment it,
the compilation process says, "architecture not detected" as shown below;*

Determining architecture... ()/usr/bin/arm-linux-gnueabi-g++ -c -pipe
-march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp
--sysroot=/home/emayssat/sysroot/ubuntu_14.04 -g -Wall -W -fPIE
-I/home/emayssat/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs/devices/linux-beaglebone-ubuntu-14.04-g++
-I/home/emayssat/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/arch
-I/home/emayssat/sysroot/ubuntu_14.04/usr/include
-I/home/emayssat/sysroot/ubuntu_14.04/usr/include/mysql
-I/home/emayssat/sysroot/ubuntu_14.04/usr/include/freetype2
-I/home/emayssat/sysroot/ubuntu_14.04/usr/include/glib-2.0
-I/home/emayssat/sysroot/ubuntu_14.04/usr/lib/arm-linux-gnueabihf/glib-2.0
-I/home/emayssat/sysroot/ubuntu_14.04/usr/lib/arm-linux-gnueabihf/glib-2.0/include
-I. -o arch.o /home/emayssat/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/arch/arch.cpp/usr/bin/arm-linux-gnueabi-g++
-Wl,-rpath-link,/home/emayssat/sysroot/ubuntu_14.04/usr/lib/arm-linux-gnueabihf
-o arch arch.o
-L/home/emayssat/sysroot/ubuntu_14.04/usr/lib/arm-linux-gnueabihf/
-L/home/emayssat/sysroot/ubuntu_14.04/usr/lib
-L/home/emayssat/sysroot/ubuntu_14.04/lib/arm-linux-gnueabihf
-L/home/emayssat/sysroot/ubuntu_14.04/usr/lib/arm-linux-gnueabihf/mesa-egl
-lrt -lpthread -ldl --sysroot=/home/emayssat/sysroot/ubuntu_14.04
/usr/lib/gcc-cross/arm-linux-gnueabi/4.7/../../../../arm-linux-gnueabi/bin/ld:
error: /home/emayssat/sysroot/ubuntu_14.04/usr/lib/arm-linux-gnueabihf//libc_nonshared.a(elf-init.oS)
uses VFP register arguments, arch does
not/usr/lib/gcc-cross/arm-linux-gnueabi/4.7/../../../../arm-linux-gnueabi/bin/ld:
failed to merge target specific data of file
/home/emayssat/sysroot/ubuntu_14.04/usr/lib/arm-linux-gnueabihf//libc_nonshared.a(elf-init.oS)collect2:
error: ld returned 1 exit statusmake: *** [arch] Error 1Unable to
determine architecture!Could not determine the target
architecture!Turn on verbose messaging (-v) to see the final
report.Determining architecture... ()g++ -c -pipe -g -Wall -W -fPIE
-I/home/emayssat/qt-everywhere-opensource-src-5.3.1/qtbase/mkspecs/linux-g++
-I/home/emayssat/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/arch
-I. -o arch.o /home/emayssat/qt-everywhere-opensource-src-5.3.1/qtbase/config.tests/arch/arch.cppg++
 -o arch arch.o        Found architecture in
binaryCFG_HOST_ARCH="x86_64"CFG_HOST_CPUFEATURES=" mmx sse sse2"System
architecture: 'unknown'Host architecture: 'x86_64'

*The system architecture: should show 'arm' instead of 'unknown'.*

System architecture: 'unknown'


*Can you please tell me where I am going wrong.*

*Thanks in advance.*

*Sincere Regards,*
*Amey Patil*
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