make[4]: Entering directory '/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a9+neon_musl_eabi/haproxy-ssl/haproxy-2.6.12'
  CC      src/ssl_sample.o
In file included from src/ssl_sample.c:29:
include/haproxy/openssl-compat.h:5:10: fatal error: openssl/bn.h: No such file or directory
    5 | #include <openssl/bn.h>
      |          ^~~~~~~~~~~~~~
compilation terminated.
make[4]: *** [Makefile:1017: src/ssl_sample.o] Error 1
make[4]: Leaving directory '/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a9+neon_musl_eabi/haproxy-ssl/haproxy-2.6.12'
make[3]: *** [Makefile:147: /builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a9+neon_musl_eabi/haproxy-ssl/haproxy-2.6.12/.built] Error 2
time: package/feeds/packages/haproxy/ssl/compile#0.51#0.15#1.75