Bug#1059276: python-demgengeo: FTBFS on loongarch64 - error: cannot find the flags to link with Boost system

[zhangdandan]

Source: python-demgengeo
Version: 1.4-4.1
Severity: wishlist
Tags: ftbfs
User: debian-loongarch at lists.debian.org
Usertags: loong64

Dear maintainers,

Compiling the python-demgengeo failed for loong64 in the Debian Package 
Auto-Building environment.
The error messages are as follows,
```
checking for the Boost system library... /usr/lib/libboost_system.so ...
no...
/usr/lib64/libboost_system.so ...
no...
/usr/libexec/libboost_system.so ...
no...
/usr/local/lib/libboost_system.so ...
no...
.......
/usr/lib64/libboost_system-d.so ...
no...
/usr/libexec/libboost_system-d.so ...
no...
/usr/local/lib/libboost_system-d.so ...
no...
/lib/libboost_system-d.so ...
no...
/lib64/libboost_system-d.so ...
no...
/libboost_system-d.so ...
no...
/usr/lib/libboost_system-mt-d.so ...
no...
/usr/lib64/libboost_system-mt-d.so ...
no...
/usr/libexec/libboost_system-mt-d.so ...
no...
/usr/local/lib/libboost_system-mt-d.so ...
no...
......
/lib64/libboost_system--mt-d-1_83.so ...
no...
/libboost_system--mt-d-1_83.so ...
no...
no
configure: error: cannot find the flags to link with Boost system
```

The full log can be found at 
https://buildd.debian.org/status/logs.php?pkg=python-demgengeo&ver=1.4-4.1&arch=loong64
Referring to other architectures, the relevant bug is 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829143

Please add loongarch64 directories in m4/boost.m4.

thanks,
Dandan Zhang