diff --git a/.github/workflows/analysis.yml b/.github/workflows/analysis.yml
index 0f105473c77..e7120133ea2 100644
--- a/.github/workflows/analysis.yml
+++ b/.github/workflows/analysis.yml
@@ -72,6 +72,8 @@ jobs:
   apidiff:
     if: github.repository_owner == 'aws'
     runs-on: ubuntu-latest
+    env:
+      AWS_LC_SYS_CMAKE_BUILDER: 1
     strategy:
       fail-fast: false
       matrix:
diff --git a/aws-lc-rs/src/agreement.rs b/aws-lc-rs/src/agreement.rs
index 2de2a6211a3..ab5e5938669 100644
--- a/aws-lc-rs/src/agreement.rs
+++ b/aws-lc-rs/src/agreement.rs
@@ -340,7 +340,7 @@ impl PrivateKey {
     }
 
     #[cfg(test)]
-    #[allow(clippy::missing_errors_doc)]
+    #[allow(clippy::missing_errors_doc, missing_docs)]
     pub fn generate_for_test(
         alg: &'static Algorithm,
         rng: &dyn crate::rand::SecureRandom,
diff --git a/aws-lc-rs/src/agreement/ephemeral.rs b/aws-lc-rs/src/agreement/ephemeral.rs
index 0e3c4b00981..754757ddca7 100644
--- a/aws-lc-rs/src/agreement/ephemeral.rs
+++ b/aws-lc-rs/src/agreement/ephemeral.rs
@@ -41,7 +41,7 @@ impl EphemeralPrivateKey {
     }
 
     #[cfg(test)]
-    #[allow(clippy::missing_errors_doc)]
+    #[allow(clippy::missing_errors_doc, missing_docs)]
     pub fn generate_for_test(
         alg: &'static Algorithm,
         rng: &dyn SecureRandom,
diff --git a/aws-lc-sys/builder/cc_builder.rs b/aws-lc-sys/builder/cc_builder.rs
index 0a017648b32..14b1076576e 100644
--- a/aws-lc-sys/builder/cc_builder.rs
+++ b/aws-lc-sys/builder/cc_builder.rs
@@ -121,6 +121,11 @@ impl CcBuilder {
                 .define("BORINGSSL_PREFIX", prefix.as_str());
         }
 
+        let compiler = cc_build.get_compiler();
+        if target_arch() == "x86" && (compiler.is_like_clang() || compiler.is_like_gnu()) {
+            cc_build.flag_if_supported("-msse2");
+        }
+
         let opt_level = cargo_env("OPT_LEVEL");
         match opt_level.as_str() {
             "0" | "1" | "2" => {}
diff --git a/aws-lc-sys/builder/cmake_builder.rs b/aws-lc-sys/builder/cmake_builder.rs
index 5de30d4dd46..c5930e6fdba 100644
--- a/aws-lc-sys/builder/cmake_builder.rs
+++ b/aws-lc-sys/builder/cmake_builder.rs
@@ -90,10 +90,12 @@ impl CmakeBuilder {
             } else {
                 cmake_cfg.define("CMAKE_BUILD_TYPE", "release");
                 if target_family() == "unix" || target_env() == "gnu" {
-                    cmake_cfg.cflag(format!(
-                        "-ffile-prefix-map={}=",
-                        self.manifest_dir.display()
-                    ));
+                    // This flag is not supported on GCC < v8.1
+                    // TODO: re-enable this
+                    // cmake_cfg.cflag(format!(
+                    //     "-ffile-prefix-map={}=",
+                    //     self.manifest_dir.display()
+                    // ));
                 }
             }
         } else {