[rpms/rust] rawhide: Increase s390x baseline to z15 on RHEL 11 and Fedora 45

[rpms/rust] rawhide: Increase s390x baseline to z15 on RHEL 11 and Fedora 45

[Yaakov Selkowitz]

            A new commit has been pushed.

            Repo   : rpms/rust
            Branch : rawhide
            Commit : 09c058ad61f60e49084d825812cc6419c11297a8
            Author : Yaakov Selkowitz <yselkowi@redhat.com>
            Date   : 2026-06-25T17:22:03-04:00
            Stats  : +2/-1 in 1 file(s)
            URL    : https://src.fedoraproject.org/rpms/rust/c/09c058ad61f60e49084d825812cc6419c11297a8?branch=rawhide

            Log:
            Increase s390x baseline to z15 on RHEL 11 and Fedora 45

https://fedoraproject.org/wiki/Changes/GNUToolchainF44
https://src.fedoraproject.org/rpms/gcc/pull-request/74
https://src.fedoraproject.org/rpms/gcc/pull-request/75
https://src.fedoraproject.org/rpms/redhat-rpm-config/pull-request/358
https://github.com/fedora-eln/eln/issues/556

---
diff --git a/rust.spec b/rust.spec
index 4e80136..81be359 100644
--- a/rust.spec
+++ b/rust.spec
@@ -798,7 +798,8 @@ find -name '*.rs' -type f -perm /111 -exec chmod -v -x '{}' '+'
     " RUSTC_TARGET_CPU_X86_64=x86-64" .. ((rhel >= 10) and "-v3" or (rhel == 9) and "-v2" or "")
     .. " RUSTC_TARGET_CPU_PPC64LE=" .. ((rhel >= 9) and "pwr9" or "pwr8")
     .. " RUSTC_TARGET_CPU_S390X=" ..
-        ((rhel >= 9) and "z14" or (rhel == 8 or fedora >= 38) and "z13" or
+        ((rhel >= 11 or fedora >= 45) and "z15" or (rhel >= 9) and "z14" or
+         (rhel == 8 or fedora >= 38) and "z13" or
          (fedora >= 26) and "zEC12" or (rhel == 7) and "z196" or "z10")
   print(env)
 end}