[rpms/gcc] snapshot: Increase s390x baseline for Fedora 45

[rpms/gcc] snapshot: Increase s390x baseline for Fedora 45

[Yaakov Selkowitz]

            A new commit has been pushed.

            Repo   : rpms/gcc
            Branch : snapshot
            Commit : f21769dcde1d2c61c32b57fa08e849e05f8f2aec
            Author : Yaakov Selkowitz <yselkowi@redhat.com>
            Date   : 2026-06-16T11:56:59-04:00
            Stats  : +5/-1 in 1 file(s)
            URL    : https://src.fedoraproject.org/rpms/gcc/c/f21769dcde1d2c61c32b57fa08e849e05f8f2aec?branch=snapshot

            Log:
            Increase s390x baseline for Fedora 45

Also, adjust the tuning for RHEL 11 to match the latest hardware.

https://fedoraproject.org/wiki/Changes/GNUToolchainF44

---
diff --git a/gcc.spec b/gcc.spec
index 6fa2d96..13d5ba9 100644
--- a/gcc.spec
+++ b/gcc.spec
@@ -1306,7 +1306,7 @@ CONFIGURE_OPTS="\
 %endif
 %ifarch s390 s390x
 %if 0%{?rhel} >= 11
-	--with-arch=z15 --with-tune=z16 \
+	--with-arch=z15 --with-tune=z17 \
 %else
 %if 0%{?rhel} >= 10
 	--with-arch=z14 --with-tune=z16 \
@@ -1320,6 +1320,9 @@ CONFIGURE_OPTS="\
 %if 0%{?rhel} == 7
 	--with-arch=z196 --with-tune=zEC12 \
 %else
+%if 0%{?fedora} >= 45
+	--with-arch=z15 --with-tune=z17 \
+%else
 %if 0%{?fedora} >= 38
 	--with-arch=z13 --with-tune=z14 \
 %else
@@ -1334,6 +1337,7 @@ CONFIGURE_OPTS="\
 %endif
 %endif
 %endif
+%endif
 	--enable-decimal-float \
 %endif
 %ifarch armv7hl