Another issue popped up with 0.182-2:

configure:22226: checking for dwfl_linux_proc_attach in -ldw
configure:22252: gcc -o conftest -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs
=/usr/lib/rpm/redhat/redhat-annobin-cc1  -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -Wl,-z,relro  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -L/opt/rh/gcc-toolset-10/root/usr/lib64 -L
/opt/rh/gcc-toolset-10/root/usr/lib64/elfutils  -I/opt/rh/gcc-toolset-10/root/usr/include -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switc
hes -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection  -Wl,-z,relro  -Wl,-z,now -specs=/usr/lib/rpm/redhat/red
hat-hardened-ld -L/opt/rh/gcc-toolset-10/root/usr/lib64 -L/opt/rh/gcc-toolset-10/root/usr/lib64/elfutils conftest.c -ldw  
                                       >&5
/opt/rh/gcc-toolset-10/root/usr/lib64/libdw.ar(libdwfl_a-zstd.o): In function `__libdw_unzstd':
(.text+0x79): undefined reference to `ZSTD_createDCtx'
(.text+0xf4): undefined reference to `ZSTD_isError'
(.text+0x178): undefined reference to `ZSTD_decompressStream'
(.text+0x183): undefined reference to `ZSTD_isError'
(.text+0x1a0): undefined reference to `ZSTD_freeDCtx'
(.text+0x1a8): undefined reference to `ZSTD_isError'
(.text+0x33a): undefined reference to `ZSTD_freeDCtx'
collect2: error: ld returned 1 exit status

Seems that libzstd-devel is also required now.

After the update to 0.182, which added zstd support, actually trying to link with libdw.so produces:
/opt/rh/gcc-toolset-10/root/usr/lib64/libdw.ar(libdwfl_a-zstd.o): In function `__libdw_unzstd': (.text+0x79): undefined reference to `ZSTD_createDCtx'

The Requires: libzstd-devel was added, but the libdw.so linker script was not updated.

This testcase should check all compression libraries (z, bz2, lzma and zstd) are present:

$ cat t.c 
#include <elfutils/libdwelf.h>

int main () { dwelf_elf_begin (0); }

$ yum install gcc-toolset-10-gcc gcc-toolset-10-elfutils-devel

$ scl enable gcc-toolset-10 bash

$ gcc -o t t.c -ldw
/opt/rh/gcc-toolset-10/root/usr/lib/gcc/s390x-redhat-linux/10/../../../../lib64/libdw.ar(libdwfl_a-zstd.o): In function `__libdw_unzstd':
(.text+0x84): undefined reference to `ZSTD_createDCtx'
(.text+0xfa): undefined reference to `ZSTD_isError'
(.text+0x170): undefined reference to `ZSTD_decompressStream'
(.text+0x17a): undefined reference to `ZSTD_isError'
(.text+0x194): undefined reference to `ZSTD_freeDCtx'
(.text+0x19e): undefined reference to `ZSTD_isError'
(.text+0x404): undefined reference to `ZSTD_freeDCtx'
collect2: error: ld returned 1 exit status

expected no error of course:

$ gcc -o t t.c -ldw
$ echo $?
0

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (gcc-toolset-10-elfutils bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:1805