use gcc15 , we do not have gcc14 in SLFO 1.2

0001-Disable-broken-linker-tests.patch

@@ -1,34 +0,0 @@
-From 5745751b23e3eee1906b4aca883560bc916e640a Mon Sep 17 00:00:00 2001
-From: William Brown <william@blackhats.net.au>
-Date: Tue, 28 Oct 2025 12:32:38 +1000
-Subject: [PATCH] Disable broken linker tests
-
----
- compiler/rustc_target/src/spec/mod.rs | 11 -----------
- 1 file changed, 11 deletions(-)
-
-diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
-index 1638c87c9ca..42b1c414f38 100644
---- a/compiler/rustc_target/src/spec/mod.rs
-+++ b/compiler/rustc_target/src/spec/mod.rs
-@@ -1414,17 +1414,6 @@ fn load_all_builtins() -> impl Iterator<Item = Target> {
-             .into_iter()
-             .map(|f| f())
-         }
--
--        #[cfg(test)]
--        mod tests {
--            // Cannot put this into a separate file without duplication, make an exception.
--            $(
--                #[test] // `#[test]`
--                fn $module() {
--                    crate::spec::targets::$module::target().test_target()
--                }
--            )+
--        }
-     };
- }
- 
--- 
-2.50.1 (Apple Git-155)
-

rust1.90.changes

@@ -1,9 +1,3 @@
--------------------------------------------------------------------
-Sun Oct 26 03:24:33 UTC 2025 - William Brown <william.brown@suse.com>
-
-- bsc#1252698 - define default linker when versioned gcc is in use
-  - 0001-Disable-broken-linker-tests.patch
-
 -------------------------------------------------------------------
 Fri Oct  3 05:40:12 UTC 2025 - William Brown <william.brown@suse.com>
 

rust1.90.spec

@@ -21,13 +21,13 @@
 %global version_current 1.90.0
 %global version_previous 1.89.0
 
-%if 0%{?gcc_version} < 14
+%if 0%{?gcc_version} < 15
 # We may need a minimum gcc version for some linker flags
 # This is especially true on leap/sle
 #
 # ⚠️   11 or greater is required for a number of linker flags to be supported in sle.
 #
-%global need_gcc_version 14
+%global need_gcc_version 15
 %endif
 
 # Use correct python-version for SLE-12
@@ -294,8 +294,10 @@ Patch0:         ignore-Wstring-conversion.patch
 Patch3:         0001-Disable-pidfs-tests-for-15SP3.patch
 %endif
 
-# Can't disable these tests individually
-Patch4:         0001-Disable-broken-linker-tests.patch
+# PATCH-FIX-UPSTREAM - Don't always panic if WASI_SDK_PATH is not set when detecting compilers
+# Patch4:         0001-Don-t-always-panic-if-WASI_SDK_PATH-is-not-set.patch
+# PATCH-FIX-UPSTREAM - Don't include current rustc version string in feature removed help
+# Patch5:         0001-Don-t-include-current-rustc-version-string-in-featur.patch
 
 BuildRequires:  chrpath
 BuildRequires:  curl
@@ -506,22 +508,11 @@ df -h
 # If the environments between build and install and different,
 # everything will be rebuilt during installation!
 
-%if %{with llvmtools}
-%define rlinker clang
-%else
-%if 0%{?need_gcc_version} != 0
-%define rlinker gcc-%{need_gcc_version}
-%else
-%define rlinker cc
-%endif
-%endif
-
-
 %if %{with llvmtools}
 cat > .env.sh <<EOF
 export CC="/usr/bin/clang"
 export CXX="/usr/bin/clang++"
-export RUSTFLAGS="%{rustflags} -Clinker=%{rlinker}"
+export RUSTFLAGS="%{rustflags} -Clinker=clang"
 EOF
 %else
 
@@ -529,13 +520,13 @@ EOF
 cat > .env.sh <<EOF
 export CC="/usr/bin/gcc-%{need_gcc_version}"
 export CXX="/usr/bin/g++-%{need_gcc_version}"
-export RUSTFLAGS="%{rustflags} -Clinker=%{rlinker}"
+export RUSTFLAGS="%{rustflags} -Clinker=gcc-%{need_gcc_version}"
 EOF
 %else
 cat > .env.sh <<EOF
 export CC="gcc"
 export CXX="g++"
-export RUSTFLAGS="%{rustflags} -Clinker=%{rlinker}"
+export RUSTFLAGS="%{rustflags}"
 EOF
 %endif
 
@@ -599,8 +590,7 @@ RUSTC_LOG=rustc_codegen_ssa::back::link=info %{rust_root}/bin/rustc -C link-args
   %{!?with_test: --local-rust-root=%{rust_root} --disable-rpath} \
   --disable-llvm-link-shared --set llvm.link-jobs=0 \
   --set target.%{rust_triple}.profiler=true \
-  %{?with_llvmtools: --set llvm.use-linker=lld } \
-  --default-linker=%{rlinker} \
+  %{?with_llvmtools: --set llvm.use-linker=lld --default-linker=clang } \
   --set rust.lld=true \
   %{?with_sccache: --enable-sccache} \
   %{!?with_sccache: --enable-ccache} \