diff --git a/cmd/genbindings/cachedir/.create_dir b/cmd/genbindings/cachedir/.create_dir
new file mode 100644
index 0000000..e69de29
diff --git a/cmd/genbindings/main.go b/cmd/genbindings/main.go
index efa145a..9670490 100644
--- a/cmd/genbindings/main.go
+++ b/cmd/genbindings/main.go
@@ -14,88 +14,117 @@ func main() {
 	ctx := context.Background()
 
 	clang := flag.String("clang", "clang", "Custom path to clang")
-	inputHeader := flag.String("inputHeader", `/usr/include/x86_64-linux-gnu/qt5/QtWidgets/qpushbutton.h`, "Input file")
 	cflags := flag.String("cflags", `-DQT_WIDGETS_LIB -I/usr/include/x86_64-linux-gnu/qt5/QtWidgets -I/usr/include/x86_64-linux-gnu/qt5 -I/usr/include/x86_64-linux-gnu/qt5/QtCore -DQT_GUI_LIB -I/usr/include/x86_64-linux-gnu/qt5/QtGui -DQT_CORE_LIB`, "Cflags to pass to clang (e.g. `pkg-config --cflags Qt5Widgets`)")
 	outDir := flag.String("outdir", "../../qt", "Output directory for generated gen_** files")
-	dumpClang := flag.String("dumpclang", "", "(Optional) File to dump output clang JSON")
 	dumpIL := flag.String("dumpil", "", "(Optional) File to dump intermediate IL JSON")
 
 	flag.Parse()
 
-	// Parse the file
-	astInner, err := clangExec(ctx, *clang, *inputHeader, strings.Fields(*cflags))
-	if err != nil {
-		panic(err)
+	includeFiles := []string{
+		"/usr/include/x86_64-linux-gnu/qt5/QtWidgets/qwidget.h",
+		"/usr/include/x86_64-linux-gnu/qt5/QtWidgets/qabstractbutton.h",
+		"/usr/include/x86_64-linux-gnu/qt5/QtWidgets/qpushbutton.h",
 	}
 
-	if *dumpClang != "" {
-		jb, err := json.MarshalIndent(astInner, "", "\t")
+	for _, inputHeader := range includeFiles {
+
+		// If we have a cached clang AST, use that instead
+		cacheFile := filepath.Join("cachedir", strings.Replace(inputHeader, `/`, `__`, -1)+".json")
+		astJson, err := ioutil.ReadFile(cacheFile)
+		var astInner []interface{} = nil
+		if err != nil {
+
+			// Nonexistent cache file, regenerate from clang
+			log.Printf("No AST cache for file %q, running clang...", filepath.Base(inputHeader))
+
+			// Parse the file
+			astInner, err = clangExec(ctx, *clang, inputHeader, strings.Fields(*cflags))
+			if err != nil {
+				panic(err)
+			}
+
+			// Write to cache
+			jb, err := json.MarshalIndent(astInner, "", "\t")
+			if err != nil {
+				panic(err)
+			}
+
+			err = ioutil.WriteFile(cacheFile, jb, 0644)
+			if err != nil {
+				panic(err)
+			}
+
+		} else {
+			log.Printf("Reused cache AST for file %q", filepath.Base(inputHeader))
+
+			// Json decode
+			err = json.Unmarshal(astJson, &astInner)
+			if err != nil {
+				panic(err)
+			}
+
+		}
+
+		// Convert it to our intermediate format
+		parsed, err := parseHeader(astInner)
 		if err != nil {
 			panic(err)
 		}
 
-		err = ioutil.WriteFile(*dumpClang, jb, 0644)
-		if err != nil {
-			panic(err)
+		if *dumpIL != "" {
+			jb, err := json.MarshalIndent(parsed, "", "\t")
+			if err != nil {
+				panic(err)
+			}
+
+			err = ioutil.WriteFile(*dumpIL, jb, 0644)
+			if err != nil {
+				panic(err)
+			}
 		}
-	}
 
-	// Convert it to our intermediate format
-	parsed, err := parseHeader(astInner)
-	if err != nil {
-		panic(err)
-	}
+		// AST transforms on our IL
+		astTransformOptional(parsed)
+		astTransformOverloads(parsed)
 
-	if *dumpIL != "" {
-		jb, err := json.MarshalIndent(parsed, "", "\t")
+		// Emit 3 code files from the intermediate format
+		outputName := filepath.Join(*outDir, "gen_"+strings.TrimSuffix(filepath.Base(inputHeader), `.h`))
+
+		goSrc, err := emitGo(parsed, filepath.Base(inputHeader))
 		if err != nil {
 			panic(err)
 		}
 
-		err = ioutil.WriteFile(*dumpIL, jb, 0644)
+		err = ioutil.WriteFile(outputName+".go", []byte(goSrc), 0644)
 		if err != nil {
 			panic(err)
 		}
+
+		bindingCppSrc, err := emitBindingCpp(parsed, filepath.Base(inputHeader))
+		if err != nil {
+			panic(err)
+		}
+
+		err = ioutil.WriteFile(outputName+".cpp", []byte(bindingCppSrc), 0644)
+		if err != nil {
+			panic(err)
+		}
+
+		bindingHSrc, err := emitBindingHeader(parsed, filepath.Base(inputHeader))
+		if err != nil {
+			panic(err)
+		}
+
+		err = ioutil.WriteFile(outputName+".h", []byte(bindingHSrc), 0644)
+		if err != nil {
+			panic(err)
+		}
+
+		// Done
+
+		log.Printf("Processing %q completed", inputHeader)
+
 	}
 
-	// AST transforms on our IL
-	astTransformOptional(parsed)
-	astTransformOverloads(parsed)
-
-	// Emit 3 code files from the intermediate format
-	outputName := filepath.Join(*outDir, "gen_"+strings.TrimSuffix(filepath.Base(*inputHeader), `.h`))
-
-	goSrc, err := emitGo(parsed, filepath.Base(*inputHeader))
-	if err != nil {
-		panic(err)
-	}
-
-	err = ioutil.WriteFile(outputName+".go", []byte(goSrc), 0644)
-	if err != nil {
-		panic(err)
-	}
-
-	bindingCppSrc, err := emitBindingCpp(parsed, filepath.Base(*inputHeader))
-	if err != nil {
-		panic(err)
-	}
-
-	err = ioutil.WriteFile(outputName+".cpp", []byte(bindingCppSrc), 0644)
-	if err != nil {
-		panic(err)
-	}
-
-	bindingHSrc, err := emitBindingHeader(parsed, filepath.Base(*inputHeader))
-	if err != nil {
-		panic(err)
-	}
-
-	err = ioutil.WriteFile(outputName+".h", []byte(bindingHSrc), 0644)
-	if err != nil {
-		panic(err)
-	}
-
-	// Done
-
-	log.Printf("Processing %q completed", *inputHeader)
+	log.Printf("Processing %d file(s) completed", len(includeFiles))
 }