Bug#1081259: libreoffice:FTBFS:build failure (test failed on riscv64)

Source: libreoffice
Version: 4:24.2.6-1
Severity: serious
Tags: FTBFS, patch
User: debian-riscv@lists.debian.org
Usertags: riscv64
X-Debbugs-Cc: debian-riscv@lists.debian.org

Dear libreoffice Maintainer,

The package libreoffice build failed on arch riscv64 . The crucial buildd log below:

```

test-rtl-math.cxx:662:Assertion
Test name: (anonymous namespace)::Test::test_payloadNaN
equality assertion failed
- Expected: 48879
- Actual  : 0
- Your platform does not support propagation of NaN payloads.

Failures !!!
Run: 1335   Failure total: 1   Failures: 1   Errors: 0
make[2]: *** [/<<PKGBUILDDIR>>/solenv/gbuild/CppunitTest.mk:130: /<<PKGBUILDDIR>>/workdir/CppunitTest/sal_rtl.test] Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>/sal'
make[1]: *** [/<<PKGBUILDDIR>>/debian/rules:2576: check] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:2404: debian/stampdir/build-arch] Error 2
dpkg-buildpackage: error: debian/rules binary-arch subprocess returned exit status 2

```

The full buildd log is here:

https://buildd.debian.org/status/fetch.php?pkg=libreoffice&arch=riscv64&ver=4%3A24.2.6-1&stamp=1725638217&raw=0

My solution to this issue:

The test failed because NaN is not supported on the RISC-V platform.W e can skip this test when build on riscv64.I have tested this solution on local, and it works well.Please let me know wheather this solution can be accepted.The patch is in the attachment.

Gui-Yue

Best Regards