depends: Qt doesn't build on Chimera Linux #32744

Tested using podman and chimeralinux/chimera

# c++ --version
clang version 20.1.6
Target: x86_64-chimera-linux-musl

#make -C depends/ qt
...
[ 15%] Building C object qtbase/src/tools/bootstrap/CMakeFiles/Bootstrap.dir/__/__/3rdparty/pcre2/src/pcre2_xclass.c.o
/bitcoin/depends/work/build/x86_64-pc-linux-musl/qt/6.7.3-0a1664c58a9/qtbase/src/corelib/tools/qhash.cpp:1452:45: error: 'memcpy' called with `n` bigger than the size of `d`.
 1452 |         memcpy(&k, &key, sizeof(long double));
      |                                             ^
/usr/include/fortify/string.h:48:1: note: from 'diagnose_if' attribute on 'memcpy':
   48 | __error_if((__fh_bos(__od, 0) < __n), "'memcpy' called with `n` bigger than the size of `d`.")
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/fortify/fortify-headers.h:120:47: note: expanded from macro '__error_if'
  120 | #define __error_if(cond, msg) __attribute__ ((diagnose_if (cond, msg, "error")))
      |                                               ^            ~~~~
1 error generated.

For the reference, Chimera Linux is not listed in Qt 6.7 Supported Platforms.

6.7 Supported Platforms.

According to that page, most of what we do isn't supported. GCC 13, macOS cross compilation, our mingw-w64 compiler, a number of the linux architectures we ship for, etc.

There is an upstream patch that might fix this, https://github.com/chimera-linux/cports/blob/master/main/qt6-qtbase/patches/foortify.patch, but I'm not planning on investigating this any further, so closing for now.