Can't install ZNC properly with ICU #719

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opened 2026-10-05 04:40:30 +02:00 by adam · 11 comments

adam commented 2026-10-05 04:40:30 +02:00

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I'm trying to add charset support to ZNC, and finally got it to install, but it won't run. My installation process is already complicated due to being on CentOS 6 and wanting modpython too. I usually install fine this way and have ZNC+modpython. But adding ICU into the mix isn't working.

My process:

scl enable devtoolset-1.1 bash

yum install icu libicu libicu-devel
wget http://download.icu-project.org/files/icu4c/57.1/icu4c-57_1-RHEL6-i386.tgz
mv icu*.tgz /
cd /
tar -xzvf icu*.tgz
rm -rf icu*.tgz

cd ~
wget http://znc.in/releases/znc-latest.tar.gz
tar -xzvf znc*.*gz
cd znc*
ldconfig
export LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib
PKG_CONFIG_PATH=/opt/python3/lib/pkgconfig:/usr/local/lib/pkgconfig python_LIBS="-L/opt/python3/lib/ -lpython3.5m -lutil" ./configure --enable-python --disable-swig
make
make install

# cat /etc/ld.so.conf
include ld.so.conf.d/*.conf
/opt/python3/lib
/usr/local/lib

#  sudo -u znc /usr/local/bin/znc
/usr/local/bin/znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory

I had to use that ICU binary tar because ./configure wouldn't recognize icu until i got those from the icu website and extracted them into my system.

Why can't ZNC find libicuuc.so.57? Where is it looking for it? It's there in /usr/local/lib/

I'm trying to add `charset` support to ZNC, and finally got it to install, but it won't run. My installation process is already complicated due to being on CentOS 6 and wanting modpython too. I usually install fine this way and have ZNC+modpython. But adding ICU into the mix isn't working. My process: ``` scl enable devtoolset-1.1 bash yum install icu libicu libicu-devel wget http://download.icu-project.org/files/icu4c/57.1/icu4c-57_1-RHEL6-i386.tgz mv icu*.tgz / cd / tar -xzvf icu*.tgz rm -rf icu*.tgz cd ~ wget http://znc.in/releases/znc-latest.tar.gz tar -xzvf znc*.*gz cd znc* ldconfig export LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib PKG_CONFIG_PATH=/opt/python3/lib/pkgconfig:/usr/local/lib/pkgconfig python_LIBS="-L/opt/python3/lib/ -lpython3.5m -lutil" ./configure --enable-python --disable-swig make make install ``` ``` # cat /etc/ld.so.conf include ld.so.conf.d/*.conf /opt/python3/lib /usr/local/lib ``` ``` # sudo -u znc /usr/local/bin/znc /usr/local/bin/znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory ``` I had to use that ICU binary tar because ./configure wouldn't recognize icu until i got those from the icu website and extracted them into my system. Why can't ZNC find libicuuc.so.57? Where is it looking for it? It's there in /usr/local/lib/ <!-- github-sync-id:169731845 -->

adam closed this issue 2026-10-05 04:40:30 +02:00

adam commented 2026-10-05 04:40:31 +02:00

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I had to use that ICU binary tar because ./configure wouldn't recognize icu until

Old versions of it didn't have the pkg-config files. ZNC relies on them to find ICU.

i got those from the icu website and extracted them into my system.

Offtopic, but I advise you to use checkinstall instead of extracting tars to /. That's easier to cleanup.

Check ldd /usr/local/lib/libicuuc.so.57, does it depend on anything not installed? If so, compile ICU from source.

Try strace znc.

> I had to use that ICU binary tar because ./configure wouldn't recognize icu until Old versions of it didn't have the pkg-config files. ZNC relies on them to find ICU. > i got those from the icu website and extracted them into my system. Offtopic, but I advise you to use checkinstall instead of extracting tars to `/`. That's easier to cleanup. Check `ldd /usr/local/lib/libicuuc.so.57`, does it depend on anything not installed? If so, compile ICU from source. Try `strace znc`. <!-- github-comment-id:238012667 -->

adam commented 2026-10-05 04:40:32 +02:00

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thanks

# ldd /usr/local/lib/libicuuc.so.57
        linux-gate.so.1 =>  (0xb7721000)
        libicudata.so.57 => not found
        libpthread.so.0 => /lib/libpthread.so.0 (0xb7555000)
        libdl.so.2 => /lib/libdl.so.2 (0xb7550000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb7465000)
        libm.so.6 => /lib/libm.so.6 (0xb743a000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb741c000)
        libc.so.6 => /lib/libc.so.6 (0xb7284000)
        /lib/ld-linux.so.2 (0xb7722000)

ill try to compile icu

thanks ``` # ldd /usr/local/lib/libicuuc.so.57 linux-gate.so.1 => (0xb7721000) libicudata.so.57 => not found libpthread.so.0 => /lib/libpthread.so.0 (0xb7555000) libdl.so.2 => /lib/libdl.so.2 (0xb7550000) libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb7465000) libm.so.6 => /lib/libm.so.6 (0xb743a000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb741c000) libc.so.6 => /lib/libc.so.6 (0xb7284000) /lib/ld-linux.so.2 (0xb7722000) ``` ill try to compile icu <!-- github-comment-id:238015358 -->

adam commented 2026-10-05 04:40:33 +02:00

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i compiled it from http://download.icu-project.org/files/icu4c/57.1/icu4c-57_1-src.tgz
i can see that it added files to /usr/local/lib

ldd /usr/local/lib/libicuuc.so.57 still shows libicudata.so.57 => not found even though that file is there

i installed znc and still get ./znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory

going to strace

i compiled it from http://download.icu-project.org/files/icu4c/57.1/icu4c-57_1-src.tgz i can see that it added files to /usr/local/lib `ldd /usr/local/lib/libicuuc.so.57` still shows `libicudata.so.57 => not found` even though that file is there i installed znc and still get `./znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory` going to strace <!-- github-comment-id:238017853 -->

adam commented 2026-10-05 04:40:33 +02:00

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# sudo -u znc strace ./znc
execve("./znc", ["./znc"], [/* 16 vars */]) = 0
brk(0)                                  = 0x9703000
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7784000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=45825, ...}) = 0
mmap2(NULL, 45825, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7778000
close(3)                                = 0
open("/lib/libdl.so.2", O_RDONLY)       = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`\n\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=17896, ...}) = 0
mmap2(NULL, 16500, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7773000
mmap2(0xb7776000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0xb7776000
close(3)                                = 0
open("/usr/lib/libssl.so.10", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360\362\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=424524, ...}) = 0
mmap2(NULL, 423320, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb770b000
mmap2(0xb776c000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x61000) = 0xb776c000
close(3)                                = 0
open("/usr/lib/libcrypto.so.10", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\340\3\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1854040, ...}) = 0
mmap2(NULL, 1867512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7543000
mmap2(0xb76f1000, 94208, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ae000) = 0xb76f1000
mmap2(0xb7708000, 12024, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7708000
close(3)                                = 0
open("/lib/libz.so.1", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360\27\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=75384, ...}) = 0
mmap2(NULL, 78096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb752f000
mmap2(0xb7541000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x11000) = 0xb7541000
close(3)                                = 0
open("/lib/tls/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/i686/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory)
open("/lib/tls/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/i686", 0xbfca6728)     = -1 ENOENT (No such file or directory)
open("/lib/tls/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls/sse2", 0xbfca6728)     = -1 ENOENT (No such file or directory)
open("/lib/tls/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/lib/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/i686/sse2", 0xbfca6728)    = -1 ENOENT (No such file or directory)
open("/lib/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/i686", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/lib/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/sse2", 0xbfca6728)         = -1 ENOENT (No such file or directory)
open("/lib/libicuuc.so.57", O_RDONLY)   = -1 ENOENT (No such file or directory)
stat64("/lib", {st_mode=S_IFDIR|0551, st_size=12288, ...}) = 0
open("/usr/lib/tls/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/tls/i686/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory)
open("/usr/lib/tls/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/tls/i686", 0xbfca6728) = -1 ENOENT (No such file or directory)
open("/usr/lib/tls/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/tls/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory)
open("/usr/lib/tls/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/usr/lib/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/i686/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory)
open("/usr/lib/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/i686", 0xbfca6728)     = -1 ENOENT (No such file or directory)
open("/usr/lib/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/sse2", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/usr/lib/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib", {st_mode=S_IFDIR|0555, st_size=36864, ...}) = 0
writev(2, [{"./znc", 5}, {": ", 2}, {"error while loading shared libra"..., 36}, {": ", 2}, {"libicuuc.so.57", 14}, {": ", 2}, {"cannot open shared object file", 30}, {": ", 2}, {"No such file or directory", 25}, {"\n", 1}], 10./znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory
) = 119
exit_group(127)                         = ?
+++ exited with 127 +++

``` # sudo -u znc strace ./znc execve("./znc", ["./znc"], [/* 16 vars */]) = 0 brk(0) = 0x9703000 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7784000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=45825, ...}) = 0 mmap2(NULL, 45825, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7778000 close(3) = 0 open("/lib/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`\n\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=17896, ...}) = 0 mmap2(NULL, 16500, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7773000 mmap2(0xb7776000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0xb7776000 close(3) = 0 open("/usr/lib/libssl.so.10", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360\362\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=424524, ...}) = 0 mmap2(NULL, 423320, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb770b000 mmap2(0xb776c000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x61000) = 0xb776c000 close(3) = 0 open("/usr/lib/libcrypto.so.10", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\340\3\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1854040, ...}) = 0 mmap2(NULL, 1867512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7543000 mmap2(0xb76f1000, 94208, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ae000) = 0xb76f1000 mmap2(0xb7708000, 12024, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7708000 close(3) = 0 open("/lib/libz.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360\27\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=75384, ...}) = 0 mmap2(NULL, 78096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb752f000 mmap2(0xb7541000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x11000) = 0xb7541000 close(3) = 0 open("/lib/tls/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/lib/tls/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/lib/tls/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0 open("/lib/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/lib/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/lib/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/lib/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib", {st_mode=S_IFDIR|0551, st_size=12288, ...}) = 0 open("/usr/lib/tls/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0 open("/usr/lib/i686/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686/sse2", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/usr/lib/i686/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686", 0xbfca6728) = -1 ENOENT (No such file or directory) open("/usr/lib/sse2/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/sse2", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0 open("/usr/lib/libicuuc.so.57", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib", {st_mode=S_IFDIR|0555, st_size=36864, ...}) = 0 writev(2, [{"./znc", 5}, {": ", 2}, {"error while loading shared libra"..., 36}, {": ", 2}, {"libicuuc.so.57", 14}, {": ", 2}, {"cannot open shared object file", 30}, {": ", 2}, {"No such file or directory", 25}, {"\n", 1}], 10./znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory ) = 119 exit_group(127) = ? +++ exited with 127 +++ ``` <!-- github-comment-id:238018121 -->

adam commented 2026-10-05 04:40:34 +02:00

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its looking for the files everywhere but /usr/local/bin i guess? lol

and /usr/lib/ only has the old versions

its looking for the files everywhere but /usr/local/bin i guess? lol and /usr/lib/ only has the old versions <!-- github-comment-id:238018170 -->

adam commented 2026-10-05 04:40:35 +02:00

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sudo -u znc env LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib /usr/local/bin/znc?

I wonder why /etc/ld.so.conf doesn't work... What's in /etc/ld.so.conf.d/*.conf?

`sudo -u znc env LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib /usr/local/bin/znc`? I wonder why `/etc/ld.so.conf` doesn't work... What's in `/etc/ld.so.conf.d/*.conf`? <!-- github-comment-id:238018297 -->

adam commented 2026-10-05 04:40:35 +02:00

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# cat /etc/ld.so.conf
include ld.so.conf.d/*.conf
/opt/python3/lib
/usr/local/lib
# cat /etc/ld.so.conf.d/*.conf
# This directive teaches ldconfig to search in nosegneg subdirectories
# and cache the DSOs there with extra bit 1 set in their hwcap match
# fields.  In Xen guest kernels, the vDSO tells the dynamic linker to
# search in nosegneg subdirectories and to match this extra hwcap bit
# in the ld.so.cache file.
hwcap 1 nosegneg
# This directive teaches ldconfig to search in nosegneg subdirectories
# and cache the DSOs there with extra bit 1 set in their hwcap match
# fields.  In Xen guest kernels, the vDSO tells the dynamic linker to
# search in nosegneg subdirectories and to match this extra hwcap bit
# in the ld.so.cache file.
hwcap 1 nosegneg
# This directive teaches ldconfig to search in nosegneg subdirectories
# and cache the DSOs there with extra bit 1 set in their hwcap match
# fields.  In Xen guest kernels, the vDSO tells the dynamic linker to
# search in nosegneg subdirectories and to match this extra hwcap bit
# in the ld.so.cache file.
hwcap 1 nosegneg
# This directive teaches ldconfig to search in nosegneg subdirectories
# and cache the DSOs there with extra bit 1 set in their hwcap match
# fields.  In Xen guest kernels, the vDSO tells the dynamic linker to
# search in nosegneg subdirectories and to match this extra hwcap bit
# in the ld.so.cache file.
hwcap 1 nosegneg
# This directive teaches ldconfig to search in nosegneg subdirectories
# and cache the DSOs there with extra bit 1 set in their hwcap match
# fields.  In Xen guest kernels, the vDSO tells the dynamic linker to
# search in nosegneg subdirectories and to match this extra hwcap bit
# in the ld.so.cache file.
hwcap 1 nosegneg
/usr/lib/mysql
/usr/lib/mysql
/usr/lib/tcl8.5
/usr/local/lib

``` # cat /etc/ld.so.conf include ld.so.conf.d/*.conf /opt/python3/lib /usr/local/lib # cat /etc/ld.so.conf.d/*.conf # This directive teaches ldconfig to search in nosegneg subdirectories # and cache the DSOs there with extra bit 1 set in their hwcap match # fields. In Xen guest kernels, the vDSO tells the dynamic linker to # search in nosegneg subdirectories and to match this extra hwcap bit # in the ld.so.cache file. hwcap 1 nosegneg # This directive teaches ldconfig to search in nosegneg subdirectories # and cache the DSOs there with extra bit 1 set in their hwcap match # fields. In Xen guest kernels, the vDSO tells the dynamic linker to # search in nosegneg subdirectories and to match this extra hwcap bit # in the ld.so.cache file. hwcap 1 nosegneg # This directive teaches ldconfig to search in nosegneg subdirectories # and cache the DSOs there with extra bit 1 set in their hwcap match # fields. In Xen guest kernels, the vDSO tells the dynamic linker to # search in nosegneg subdirectories and to match this extra hwcap bit # in the ld.so.cache file. hwcap 1 nosegneg # This directive teaches ldconfig to search in nosegneg subdirectories # and cache the DSOs there with extra bit 1 set in their hwcap match # fields. In Xen guest kernels, the vDSO tells the dynamic linker to # search in nosegneg subdirectories and to match this extra hwcap bit # in the ld.so.cache file. hwcap 1 nosegneg # This directive teaches ldconfig to search in nosegneg subdirectories # and cache the DSOs there with extra bit 1 set in their hwcap match # fields. In Xen guest kernels, the vDSO tells the dynamic linker to # search in nosegneg subdirectories and to match this extra hwcap bit # in the ld.so.cache file. hwcap 1 nosegneg /usr/lib/mysql /usr/lib/mysql /usr/lib/tcl8.5 /usr/local/lib ``` <!-- github-comment-id:238018357 -->

adam commented 2026-10-05 04:40:36 +02:00

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adding the env LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib before znc works. is there a better long term solution though? somethings messing up during install it seems

adding the `env LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib` before znc works. is there a better long term solution though? somethings messing up during install it seems <!-- github-comment-id:238018395 -->

adam commented 2026-10-05 04:40:37 +02:00

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# export LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib
# sudo -u znc ./znc
./znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory

this doesnt help with running it. only env before the command does. idgi

``` # export LD_LIBRARY_PATH=/opt/python3/lib:/usr/local/lib # sudo -u znc ./znc ./znc: error while loading shared libraries: libicuuc.so.57: cannot open shared object file: No such file or directory ``` this doesnt help with running it. only env before the command does. idgi <!-- github-comment-id:238018466 -->

adam commented 2026-10-05 04:40:37 +02:00

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Yes, there is.
The best long-term solution is to upgrade your OS :-)
The second long-term solution is to find out what's up with /etc/ld.so.conf. If you find that out, I'd be curious to see.

sudo cleans environment for security reasons, that's why env needs to be run by sudo.

Yes, there is. The best long-term solution is to upgrade your OS :-) The second long-term solution is to find out what's up with `/etc/ld.so.conf`. If you find that out, I'd be curious to see. sudo cleans environment for security reasons, that's why env needs to be run by sudo. <!-- github-comment-id:238018509 -->

adam commented 2026-10-05 04:40:38 +02:00

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typing ldconfig fixed it, it seems... i hope that persists

typing `ldconfig` fixed it, it seems... i hope that persists <!-- github-comment-id:238018575 -->

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Reference: adam/znc#719