Buildroot | ninja build error | /usr/bin/ld:error adding symbols: file in wrong format

Question

While building casync using ninja build I am facing below errors related to /usr/bin/ld: . . .error adding symbols: file in wrong format

I am following casync build guideline from systemd/casync

ninja: Entering directory `build'
[1/23] Linking target casync-http
FAILED: casync-http
cc  -o casync-http casync-http.p/src_casync-http.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-rpath,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,-rpath-link,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,--start-group src/libshared.a /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libcurl.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libssl.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libcrypto.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/liblzma.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libz.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libzstd.so -lm -Wl,--end-group
/usr/bin/ld: /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libcurl.so: error adding symbols: file in wrong format
collect2: error: ld returned 1 exit status
[2/23] Linking target test-cadigest
FAILED: test-cadigest
cc  -o test-cadigest test-cadigest.p/test_test-cadigest.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-rpath,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,-rpath-link,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,--start-group src/libshared.a -lacl /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/liblzma.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libselinux.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libz.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libzstd.so -lm /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libssl.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libcrypto.so -Wl,--end-group -pthread
/usr/bin/ld: /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/liblzma.so: error adding symbols: file in wrong format
collect2: error: ld returned 1 exit status
[3/23] Linking target test-cachunker
FAILED: test-cachunker
cc  -o test-cachunker test-cachunker.p/test_test-cachunker.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-rpath,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,-rpath-link,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,--start-group src/libshared.a -lacl /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/liblzma.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libselinux.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libz.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libzstd.so -lm /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libssl.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libcrypto.so -Wl,--end-group -pthread
/usr/bin/ld: /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/liblzma.so: error adding symbols: file in wrong format
collect2: error: ld returned 1 exit status
[4/23] Linking target test-cachunker-histogram
FAILED: test-cachunker-histogram
cc  -o test-cachunker-histogram test-cachunker-histogram.p/test_test-cachunker-histogram.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-rpath,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,-rpath-link,/root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib -Wl,--start-group src/libshared.a -lacl /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/liblzma.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libselinux.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libz.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libzstd.so -lm /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libssl.so /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/libcrypto.so -Wl,--end-group -pthread
/usr/bin/ld: /root/raspcm4/sources/output/host/bin/../aarch64-buildroot-linux-gnu/sysroot/usr/lib/liblzma.so: error adding symbols: file in wrong format
collect2: error: ld returned 1 exit status
[5/23] Linking target test-cachunk
.
.
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

I am using Buildroot as build system and after following similar post in libstdc++.so: error adding symbols: File in wrong format I changed the PATH environment like:

/root/raspcm4/sources/output/host/bin/:/root/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/root/raspcm4/sources/output/host/aarch64-buildroot-linux-gnu/sysroot/usr/bin

But still I end up getting same errors

Can anyone please let me know how to resolve this issue?

Your help will be much appreciated.

Thanks in advance

P.S: Please let me know if any info is missing here