Build GCC with support for BOLT

Author: Kobzol

src/ci/docker/host-x86_64/dist-x86_64-linux/build-gcc.sh

@@ -30,7 +30,8 @@ cd ../gcc-build
 hide_output ../gcc-$GCC/configure \
     --prefix=/rustroot \
     --enable-languages=c,c++ \
-    --disable-gnu-unique-object
+    --disable-gnu-unique-object \
+    --enable-cxx-flags='-fno-reorder-blocks-and-partition'
 hide_output make -j$(nproc)
 hide_output make install
 ln -s gcc /rustroot/bin/cc