Solved Qt 6 on RHEL HPC with module loading fails with gmake: *** [all] Error 2 after Linking CXX shared
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After thinking it was a bug with the installation, a developer suggested I post here to sort out why the make is failing. RHEL 7, gcc 10.3, make 3.17.4. My $PATH may have multiple ICU header and library copies but I only find one:
ls -l /usr/lib64/libicuuc.so lrwxrwxrwx 1 root root 18 Mar 14 2017 /usr/lib64/libicuuc.so -> libicuuc.so.50.1.2
CMakeCache has these:
ICU_UC_LIBRARY_RELEASE:FILEPATH=/usr/lib64/libicuuc.so ICU_INCLUDE_DIR:PATH=/usr/include
Here is the error:
[ 58%] Linking CXX shared library ../../lib/libQt6Widgets.so [ 58%] Built target Widgets gmake: *** [all] Error 2
I also saw this earlier in the make:
/usr/lib64/libOpenGL.so: undefined reference to `_glapi_tls_Current' collect2: error: ld returned 1 exit status gmake[2]: *** [qtbase/bin/qsb] Error 1 gmake[1]: *** [qtshadertools/tools/qsb/CMakeFiles/qsb.dir/all] Error 2 gmake[1]: *** Waiting for unfinished jobs....
here is the summary:
Building for: linux-g++ (x86_64, CPU features: mmx sse sse2) Compiler: gcc 10.3.0 Build options: Mode ................................... release Optimize release build for size ........ no Fully optimize release builds (-O3) .... no Building shared libraries .............. yes Using C standard ....................... C11 Using C++ standard ..................... C++17 Using ccache ........................... no Using new DTAGS ........................ yes Relocatable ............................ yes Using precompiled headers .............. yes Using Link Time Optimization (LTO/LTCG) no Using Control-flow Enforcement Technology (CET) no Target compiler supports: x86 Intrinsics ....................... Basic Sanitizers: Addresses ............................ no Threads .............................. no Memory ............................... no Fuzzer (instrumentation only) ........ no Undefined ............................ no Build parts ............................ libs tools Qt modules and options: Qt Concurrent .......................... yes Qt D-Bus ............................... yes Qt D-Bus directly linked to libdbus .... no Qt Gui ................................. yes Qt Network ............................. yes Qt PrintSupport ........................ yes Qt Sql ................................. yes Qt Testlib ............................. yes Qt Widgets ............................. yes Qt Xml ................................. yes Support enabled for: Using pkg-config ....................... yes udev ................................... no Using system zlib ...................... yes Zstandard support ...................... no Thread support ......................... yes Common build options: Linker can resolve circular dependencies no CMake policy CMP0099 is supported ...... yes Qt Core: backtrace .............................. yes DoubleConversion ....................... yes Using system DoubleConversion ........ no GLib ................................... yes ICU .................................... yes Using system libb2 ..................... no Built-in copy of the MIME database ..... yes cpp/winrt base ......................... no Tracing backend ........................ <none> Logging backends: journald ............................. no syslog ............................... no slog2 ................................ no PCRE2 .................................. yes Using system PCRE2 ................... no CLONE_PIDFD support in forkfd .......... yes Qt Sql: SQL item models ........................ yes Qt Network: getifaddrs() ........................... yes IPv6 ifname ............................ yes libproxy ............................... no Linux AF_NETLINK ....................... yes OpenSSL ................................ no Qt directly linked to OpenSSL ........ no OpenSSL 1.1 ............................ no DTLS ................................... no OCSP-stapling .......................... no SCTP ................................... no Use system proxies ..................... yes GSSAPI ................................. yes Brotli Decompression Support ........... no qTopLevelDomain() ...................... yes Built-in publicsuffix database ....... yes System publicsuffix database ......... yes Core tools: Android deployment tool ................ yes macOS deployment tool .................. no Windows deployment tool ................ no qmake .................................. yes 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 ............................... no HiRes wheel support in libinput ........ no INTEGRITY HID .......................... no mtdev .................................. no tslib .................................. no xkbcommon .............................. no X11 specific: XLib ................................. yes XCB Xlib ............................. yes EGL on X11 ........................... yes xkbcommon-x11 ........................ no xcb-sm ............................... 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 VK_KHR_display ......................... no QNX: lgmon ................................ no IMF .................................. no XCB: Using system-provided xcb-xinput ..... no GL integrations: GLX Plugin ......................... no XCB GLX .......................... no EGL-X11 Plugin ..................... no Windows: Direct 2D ............................ no Direct 2D 1.1 ........................ no DirectWrite .......................... no DirectWrite 3 ........................ no Qt Widgets: GTK+ ................................... no Styles ................................. Fusion Windows Qt Testlib: Tester for item models ................. yes Qt PrintSupport: CUPS ................................... no Qt Sql Drivers: DB2 (IBM) .............................. no InterBase .............................. no MySql .................................. no OCI (Oracle) ........................... no ODBC ................................... no PostgreSQL ............................. no SQLite ................................. yes Using system provided SQLite ......... no Qt QML: QML network support .................... yes QML debugging and profiling support .... yes QML just-in-time compiler .............. yes QML XML http request ................... yes QML Locale ............................. yes Qt QML Models: QML list model ......................... yes QML delegate model ..................... yes Qt Quick: AnimatedImage item ..................... yes Canvas item ............................ yes Support for Qt Quick Designer .......... yes Flipable item .......................... yes GridView item .......................... yes ListView item .......................... yes TableView item ......................... yes TreeView item .......................... yes Path support ........................... yes PathView item .......................... yes Positioner items ....................... yes Repeater item .......................... yes ShaderEffect item ...................... yes Sprite item ............................ yes Qt Quick Templates 2: Hover support .......................... yes Multi-touch support .................... yes Calendar support ....................... yes Qt Quick Controls 2: Styles ................................. Basic Fusion Imagine iOS Material Universal macOS Windows
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Once I installed/updated
libicu-50.2-4.el7_7
that updatedlibicu-devel-50.1.2-15
and lo and behold the make completed and installed.