Re: [gentoo-user] libQt5Core.so.5 => not found

[David Haller]

Hello,

On Fri, 09 Nov 2018, karl@××××××××.se wrote:
>I'm trying to build/emerge dev-qt/qtgui-5.11.1, but I get this:
>
># ldd /Net/portage_tmpdir/portage/dev-qt/qtgui-5.11.1/work/qtbase-everywhere-src-5.11.1/bin/qvkgen
>        linux-vdso.so.1 (0x00007fff3ddff000)
>        libQt5Core.so.5 => not found
>        libc.so.6 => /lib64/libc.so.6 (0x00007f697dbd8000)
>        /lib64/ld-linux-x86-64.so.2 (0x00007f697e1f5000)
># strings /etc/ld.so.cache | grep libQt5Core.so.5
>libQt5Core.so.5
>/usr/lib64/libQt5Core.so.5
># ls -l /usr/lib64/libQt5Core.so.5*
>lrwxrwxrwx 1 root root      20 Nov  5 12:49 /usr/lib64/libQt5Core.so.5 -> libQt5Core.so.5.11.1
>lrwxrwxrwx 1 root root      20 Nov  5 12:49 /usr/lib64/libQt5Core.so.5.11 -> libQt5Core.so.5.11.1
>-rwxr-xr-x 1 root root 5351376 Nov  5 12:49 /usr/lib64/libQt5Core.so.5.11.1
>
>So why isn't it found ?

Are you using a kernel <3.15?

Found this at <https://bbs.archlinux.org/viewtopic.php?id=232682>:
    "Qt 5.10 uses the renameat2 system call which is only available
    since kernel 3.15."

The error-message of ld et.al. is rather weird and misleading though.

HTH,
-dnh

-- 
printk(KERN_CRIT "How did I get here?\n");
	linux-2.6.19/arch/mips/kernel/syscall.c