New comment by oreo639 on void-packages repository

https://github.com/void-linux/void-packages/issues/39809#issuecomment-1283567922

Comment:
The ffmpeg build failure isn't related to gcc 12 and has already been resolved: https://github.com/void-linux/void-packages/issues/39648

Here is the libreoffice build failure on musl:
```
configure:23848: checking for CLucene/analysis/cjk/CJKAnalyzer.h
configure:23848: /usr/bin/ccache g++ -c -fstack-clash-protection -D_FORTIFY_SOURCE=2 -mtune=generic -O2 -pipe   -DGLM_ENABLE_EXPERIMENTAL -DU_USING_ICU_NAMESPACE=1 -DGLM_ENABLE_EXPERIMENTAL -DU_USING_ICU_NAMESPACE=1  -fdebug-prefix-map=/builddir/libreoffice-7.3.3.2=.       conftest.cpp >&5
In file included from /usr/include/CLucene/debug/lucenebase.h:10,
                 from /usr/include/CLucene/SharedHeader.h:201,
                 from /usr/include/CLucene/StdHeader.h:20,
                 from /usr/include/CLucene.h:11,
                 from conftest.cpp:90:
/usr/include/CLucene/LuceneThreads.h:72:24: error: 'pthread_t' does not name a type
   72 |                 static _LUCENE_THREADID_TYPE _GetCurrentThreadId();
      |                        ^~~~~~~~~~~~~~~~~~~~~
/usr/include/CLucene/LuceneThreads.h:73:32: error: 'pthread_t' does not name a type
   73 |                         static _LUCENE_THREADID_TYPE CreateThread(luceneThreadStartRoutine* func, void* arg);
      |                                ^~~~~~~~~~~~~~~~~~~~~
/usr/include/CLucene/LuceneThreads.h:74:48: error: 'pthread_t' has not been declared
   74 |                         static void JoinThread(_LUCENE_THREADID_TYPE id);
      |                                                ^~~~~~~~~~~~~~~~~~~~~
```