diff --git a/SConstruct b/SConstruct
index fa6e05177a..bfdca815ed 100755
--- a/SConstruct
+++ b/SConstruct
@@ -552,6 +552,11 @@ for variant_path in variant_paths:
         env.Append(CCFLAGS=['-pipe'])
         env.Append(CCFLAGS=['-fno-strict-aliasing'])
 
+        # Enable -Wall and -Wextra and then disable the few warnings that
+        # we consistently violate
+        env.Append(CCFLAGS=['-Wall', '-Wundef', '-Wextra',
+                            '-Wno-sign-compare', '-Wno-unused-parameter'])
+
         # We always compile using C++17
         env.Append(CXXFLAGS=['-std=c++17'])