Update to 1.79.0

python3-rpm is added (temporarily) to work around
https://bugzilla.redhat.com/show_bug.cgi?id=2275274.

The binutils-gold dependency is needed for one test. Previously
binutils implicitly dependend on binutils-gold.

Backport rust-lang/rust#126263 to fix
one codegen test failure on s390x.

There are some additional test failures on ppc64le and s390x for
which I have filed rust-lang/rust#126260
and rust-lang/rust#126261.

Author: nikic

.gitignore

@@ -435,3 +435,4 @@
 /rustc-1.77.0-src.tar.xz
 /rustc-1.77.2-src.tar.xz
 /rustc-1.78.0-src.tar.xz
+/rustc-1.79.0-src.tar.xz

0001-Fix-2-tests-for-offline-execution.patch

@@ -0,0 +1,49 @@
+From 26fa5c2c300f3c3a3ee3109c009bd4a6803a2a4c Mon Sep 17 00:00:00 2001
+From: Nikita Popov <npopov@redhat.com>
+Date: Tue, 11 Jun 2024 10:13:07 +0200
+Subject: [PATCH] Make issue-122805.rs big endian compatible
+
+Instead of not generating the function at all on big endian (which
+makes the CHECK lines fail), instead use to_le() on big endian,
+so that we essentially perform a bswap for both endiannesses.
+---
+ tests/codegen/issues/issue-122805.rs | 21 ++++++++++++---------
+ 1 file changed, 12 insertions(+), 9 deletions(-)
+
+diff --git a/tests/codegen/issues/issue-122805.rs b/tests/codegen/issues/issue-122805.rs
+index 6d108ada6dd..8e03c6c8884 100644
+--- a/tests/codegen/issues/issue-122805.rs
++++ b/tests/codegen/issues/issue-122805.rs
+@@ -39,17 +39,20 @@
+ // OPT3WINX64-NEXT: store <8 x i16>
+ // CHECK-NEXT: ret void
+ #[no_mangle]
+-#[cfg(target_endian = "little")]
+ pub fn convert(value: [u16; 8]) -> [u8; 16] {
++    #[cfg(target_endian = "little")]
++    let bswap = u16::to_be;
++    #[cfg(target_endian = "big")]
++    let bswap = u16::to_le;
+     let addr16 = [
+-        value[0].to_be(),
+-        value[1].to_be(),
+-        value[2].to_be(),
+-        value[3].to_be(),
+-        value[4].to_be(),
+-        value[5].to_be(),
+-        value[6].to_be(),
+-        value[7].to_be(),
++        bswap(value[0]),
++        bswap(value[1]),
++        bswap(value[2]),
++        bswap(value[3]),
++        bswap(value[4]),
++        bswap(value[5]),
++        bswap(value[6]),
++        bswap(value[7]),
+     ];
+     unsafe { core::mem::transmute::<_, [u8; 16]>(addr16) }
+ }
+-- 
+2.45.1
+