Error in the pre conditions of xcb for Qt building
Unsolved
Installation and Deployment
-
Hey,
I'm trying to build Qt on Ubuntu 16.04 OS I'm getting the following error, any suggestions ? I already followed all the documentation and installed the per-requisites.+ cd qtbase + /home/ubuntu/Desktop/DEAWA_RD/Programs/Codes/cura-build-environment/build/Qt-prefix/src/Qt/qtbase/configure -top-level -release -prefix /usr/local -archdatadir /usr/local/lib -datadir /usr/local/share -opensource -confirm-license -nomake examples -nomake tests -nomake tools -no-cups -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 -skip qtconnectivity -skip qtdoc -skip qtlocation -skip qtmultimedia -skip qtscript -skip qtsensors -skip qtwebchannel -skip qtwebengine -skip qtandroidextras -skip qtactiveqt -skip qttools -skip qtxmlpatterns -skip qt3d -skip qtcanvas3d -skip qtserialport -skip qtwayland -skip qtgamepad -skip qtscxml -rpath -pkg-config -opengl desktop -no-gtk -fontconfig -system-freetype -system-zlib -ssl -openssl-runtime -xcb -xcb-xlib -I /usr/local/include -L /usr/local/lib Creating qmake... Done. This is the Qt Open Source Edition. You have already accepted the terms of the Open Source license. Running configuration tests... Done running configuration tests. Configure summary: Build type: linux-g++ (x86_64, CPU features: mmx sse sse2) Compiler: gcc 5.5.0 Configuration: sse2 aesni sse3 ssse3 sse4_1 sse4_2 avx avx2 avx512f avx512bw avx512cd avx512dq avx512er avx512ifma avx512pf avx512vbmi avx512vl compile_examples enable_new_dtags f16c largefile precompile_header rdrnd shani x86SimdAlways shared shared rpath release c++11 c++14 concurrent dbus reduce_exports reduce_relocations stl Build options: Mode ................................... release Optimize release build for size ........ no Building shared libraries .............. yes Using C standard ....................... C11 Using C++ standard ..................... C++14 Using ccache ........................... no Using new DTAGS ........................ yes Relocatable ............................ yes Using precompiled headers .............. yes Using LTCG ............................. no Target compiler supports: SSE .................................. SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX .................................. AVX AVX2 AVX512 ............................... F ER CD PF DQ BW VL IFMA VBMI Other x86 ............................ AES F16C RDRAND SHA Intrinsics without -mXXX option ...... yes Build parts ............................ libs Qt modules and options: Qt Concurrent .......................... yes Qt D-Bus ............................... yes Qt D-Bus directly linked to libdbus .... yes Qt Gui ................................. yes Qt Network ............................. yes Qt Sql ................................. yes Qt Testlib ............................. yes Qt Widgets ............................. yes Qt Xml ................................. yes Support enabled for: Using pkg-config ....................... yes udev ................................... yes Using system zlib ...................... yes Zstandard support ...................... no Qt Core: DoubleConversion ....................... yes Using system DoubleConversion ........ no GLib ................................... yes iconv .................................. no ICU .................................... yes Built-in copy of the MIME database ..... yes Tracing backend ........................ <none> Logging backends: journald ............................. no syslog ............................... no slog2 ................................ no PCRE2 .................................. yes Using system PCRE2 ................... no Qt Network: getifaddrs() ........................... yes IPv6 ifname ............................ yes libproxy ............................... no Linux AF_NETLINK ....................... yes OpenSSL ................................ yes Qt directly linked to OpenSSL ........ no OpenSSL 1.1 ............................ yes DTLS ................................... yes OCSP-stapling .......................... yes SCTP ................................... no Use system proxies ..................... yes GSSAPI ................................. no Qt Gui: Accessibility .......................... yes FreeType ............................... yes Using system FreeType ................ yes HarfBuzz ............................... yes Using system HarfBuzz ................ no Fontconfig ............................. yes Image formats: GIF .................................. yes ICO .................................. yes JPEG ................................. yes Using system libjpeg ............... yes PNG .................................. yes Using system libpng ................ yes Text formats: HtmlParser ........................... yes CssParser ............................ yes OdfWriter ............................ yes MarkdownReader ....................... yes Using system libmd4c ............... no MarkdownWriter ....................... yes EGL .................................... yes OpenVG ................................. no OpenGL: Desktop OpenGL ....................... yes OpenGL ES 2.0 ........................ no OpenGL ES 3.0 ........................ no OpenGL ES 3.1 ........................ no OpenGL ES 3.2 ........................ no Vulkan ................................. no Session Management ..................... yes Features used by QPA backends: evdev .................................. yes libinput ............................... yes INTEGRITY HID .......................... no mtdev .................................. no tslib .................................. no xkbcommon .............................. yes X11 specific: XLib ................................. yes XCB Xlib ............................. yes EGL on X11 ........................... yes xkbcommon-x11 ........................ no QPA backends: DirectFB ............................... no EGLFS .................................. yes EGLFS details: EGLFS OpenWFD ........................ no EGLFS i.Mx6 .......................... no EGLFS i.Mx6 Wayland .................. no EGLFS RCAR ........................... no EGLFS EGLDevice ...................... yes EGLFS GBM ............................ no EGLFS VSP2 ........................... no EGLFS Mali ........................... no EGLFS Raspberry Pi ................... no EGLFS X11 ............................ yes LinuxFB ................................ yes VNC .................................... yes Qt Sql: SQL item models ........................ yes Qt Widgets: GTK+ ................................... no Styles ................................. Fusion Windows Qt PrintSupport: CUPS ................................... no Qt Sql Drivers: DB2 (IBM) .............................. no InterBase .............................. no MySql .................................. no OCI (Oracle) ........................... no ODBC ................................... no PostgreSQL ............................. no SQLite2 ................................ no SQLite ................................. no Using system provided SQLite ......... no TDS (Sybase) ........................... no Qt Testlib: Tester for item models ................. yes Qt SerialBus: Socket CAN ............................. yes Socket CAN FD .......................... yes SerialPort Support ..................... no Further Image Formats: JasPer ................................. yes MNG .................................... no TIFF ................................... yes Using system libtiff ................. yes WEBP ................................... yes Using system libwebp ................. yes Qt QML: QML network support .................... yes QML debugging and profiling support .... yes QML just-in-time compiler .............. yes QML sequence object .................... yes QML XML http request ................... yes QML Locale ............................. yes Qt QML Models: QML list model ......................... yes QML delegate model ..................... yes Qt Quick: Direct3D 12 ............................ no AnimatedImage item ..................... yes Canvas item ............................ yes Support for Qt Quick Designer .......... yes Flipable item .......................... yes GridView item .......................... yes ListView item .......................... yes TableView item ......................... yes Path support ........................... yes PathView item .......................... yes Positioner items ....................... yes Repeater item .......................... yes ShaderEffect item ...................... yes Sprite item ............................ yes QtQuick3D: Assimp ................................. yes System Assimp .......................... no Qt Quick Controls 2: Styles ................................. Default Fusion Imagine Material Universal Qt Quick Templates 2: Hover support .......................... yes Multi-touch support .................... yes Qt TextToSpeech: Flite .................................. no Flite with ALSA ........................ no Speech Dispatcher ...................... no Note: Also available for Linux: linux-clang linux-icc ERROR: Feature 'xcb' was enabled, but the pre-condition 'features.thread && libs.xcb && tests.xcb_syslibs && features.xkbcommon-x11' failed. -
What Qt version do you try to build?
See https://doc.qt.io/qt-5/supported-platforms.html - Qt5.15 does not support this ancient Ubuntu version. -
@Christian-Ehrlicher As a quick solution, do you think if I can ignore 'xcb' to make it work and how ?
-
If you don't need xcb and use wayland - maybe but I doubt you have a correct compiler version - see my link.
-
Hi, and welcome!
@MohEdu said in Error in the pre conditions of xcb for Qt building:
I already followed all the documentation and installed the per-requisites
The log shows that you are missing xkbcommon-x11:
X11 specific: XLib ................................. yes XCB Xlib ............................. yes EGL on X11 ........................... yes xkbcommon-x11 ........................ noSo install
libxkbcommon-x11, clean your build tree, and try again. -
@Christian-Ehrlicher I have GCC 5.5, any idea how to change the configuration file and ignore xcb ?
-
Hi,
That's because your distribution is too old. Either build an older version of Qt that still provides it or upgrade your distribution to something more recent. Or build that missing library yourself.
-
If using Ubuntu 16.04 is somehow a requirement, then I can attest that I was able to compile Qt 5.14 from source on Ubuntu 16.04.
Here is the build script I used.
You should probably apt install most of what is listed here in this other preparatory script of mine.
I also see that I wrote this note to myself, but my memory fails me as to exactly why this was needed:
# if you are on Ubuntu 16.04 you probably need to also run: # sudo add-apt-repository ppa:ubuntu-toolchain-r/test # sudo apt-get update # sudo apt-get install gcc-7 g++-7 # sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 60 # sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 60
