i want to Cross-compile  protobuf3-19.4  on qnx-sdp710， But there are some problems to build it,
The same environment can be compiled successfully with version qnx-sdp700。
The compilation process is as follows：
1、source ${MY_SDP710}/qnxsdp-env.sh
2、cd protobuf-3.19.4
3、./configure --prefix=xxx  --host=arm CC=aarch64-unknown-nto-qnx7.1.0-gcc  CXX=aarch64-unknown-nto-qnx7.1.0-g++ 
CPPFLAGS='-D_XOPEN_SOURCE=500' 
4、make -j8 & make install

Please see the attachment for the log of compilation failure