Installation issue: perl-xml-libxml fails in gcc14

[teaguesterling]

Steps to reproduce the issue

$ spack install perl-xml-libxml@2.0201%gcc@14
...

Error message

Error message

The `perl-xml-libxml` package fails to build with gcc14 at version 2.0201.

...
    67    perl-libxml-mm.c: In function 'PmmDumpRegistry':
  >> 68    perl-libxml-mm.c:142:32: error: passing argument 2 of 'xmlHashScan' from incompatible pointer type [-Wincompatible-pointer-types]
     69      142 |                 xmlHashScan(r, PmmRegistryDumpHashScanner, NULL);
     70          |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~
     71          |                                |
     72          |                                void (*)(void *, void *, xmlChar *) {aka void (*)(void *, void *, unsigned char *)}
     73    In file included from /home/teague/System/apps/spack/opt/spack/linux-pop22-zen3/gcc-14.1.0/libxml2-2.10.3-4zgiwk2ttsnsgbaayg7c7bjxv2ibp4mg/include/libxml2/libxml/parser.h:16,
     74                     from perl-libxml-mm.h:20,
     75                     from perl-libxml-mm.c:26:
     76    /home/teague/System/apps/spack/opt/spack/linux-pop22-zen3/gcc-14.1.0/libxml2-2.10.3-4zgiwk2ttsnsgbaayg7c7bjxv2ibp4mg/include/libxml2/libxml/hash.h:213:57: note: expected 'xmlHashScanner' {aka 'void (
           *)(void *, void *, const unsigned char *)'} but argument is of type 'void (*)(void *, void *, xmlChar *)' {aka 'void (*)(void *, void *, unsigned char *)'}
     77      213 |                                          xmlHashScanner f,
     78          |                                          ~~~~~~~~~~~~~~~^
     79    perl-libxml-mm.c: In function 'PmmUnregisterProxyNode':
...

Information on your system

• Spack: 0.23.0.dev0 (bd8a6a9925e10e34c2325d5a92c867fd2fdd036e)
• Python: 3.10.12
• Platform: linux-pop22-zen3
• Concretizer: clingo

Additional information

I will be adding a conflicts and new version in pull request in to triage this.
spack-build-out.txt
spack-build-env.txt

https://lists.opensuse.org/archives/list/bugs@lists.opensuse.org/thread/R4MJ6PJCJ6QUIA256UTFEBYZOCBDIZ53/?sort=thread

General information

• I have run spack debug report and reported the version of Spack/Python/Platform
• I have run spack maintainers <name-of-the-package> and @mentioned any maintainers
• I have uploaded the build log and environment files
• I have searched the issues of this repo and believe this is not a duplicate