Enable -ftrivial-auto-var-init by default

Author: Kartatz

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
       id: check-cache
       uses: actions/cache@main
       with:
-        key: gcc-15.2.0-4
+        key: gcc-15.2.0-6
         lookup-only: true
         path: |
           /tmp/x86_64-linux-gnu.tar.xz
@@ -36,7 +36,7 @@ jobs:
       if: ${{ steps.check-cache.outputs.cache-hit != 'true' }}
       uses: actions/cache@main
       with:
-        key: gcc-15.2.0-4
+        key: gcc-15.2.0-6
         path: |
           /tmp/x86_64-linux-gnu.tar.xz
           /tmp/x86_64-linux-gnu.tar.xz.sha256
@@ -103,7 +103,7 @@ jobs:
     - name: Restore from cache
       uses: actions/cache@main
       with:
-        key: gcc-15.2.0-4
+        key: gcc-15.2.0-6
         fail-on-cache-miss: true
         path: |
           /tmp/x86_64-linux-gnu.tar.xz

build.sh

@@ -508,7 +508,7 @@ make \
 	LDFLAGS="${linkflags}"
 
 for target in "${targets[@]}"; do
-	declare specs='-Xlinker --disable-new-dtags'
+	declare specs='%{!ftrivial-auto-var-init*:-ftrivial-auto-var-init=zero} -Xlinker --disable-new-dtags'
 	declare hash_style='both'
 
 	source "${workdir}/${target}.sh"