diff --git a/api.go b/api.go
index 0870106..7ae1374 100644
--- a/api.go
+++ b/api.go
@@ -1,8 +1,6 @@
 package duktape
 
 /*
-#cgo !windows CFLAGS: -std=c99 -O3 -Wall -Wno-unused-value -fomit-frame-pointer -fstrict-aliasing
-#cgo windows CFLAGS: -O3 -Wall -Wno-unused-value -fomit-frame-pointer -fstrict-aliasing
 
 #include "duktape.h"
 #include "duk_logging.h"
diff --git a/conts.go b/conts.go
index 6eed641..04c7ca0 100644
--- a/conts.go
+++ b/conts.go
@@ -1,9 +1,6 @@
 package duktape
 
 /*
-#cgo !windows CFLAGS: -std=c99 -O3 -Wall -Wno-unused-value -fomit-frame-pointer -fstrict-aliasing
-#cgo windows CFLAGS: -O3 -Wall -Wno-unused-value -fomit-frame-pointer -fstrict-aliasing
-
 #include "duktape.h"
 */
 import "C"
diff --git a/debugger.go b/debugger.go
index 668f31b..9ca1f7a 100644
--- a/debugger.go
+++ b/debugger.go
@@ -1,12 +1,6 @@
 package duktape
 
 /*
-#cgo !windows CFLAGS: -std=c99 -O3 -Wall -fomit-frame-pointer -fstrict-aliasing -Wno-unused-function
-#cgo windows CFLAGS: -O3 -Wall -fomit-frame-pointer -fstrict-aliasing -Wno-unused-function
-#cgo linux LDFLAGS: -lm
-#cgo freebsd LDFLAGS: -lm
-#cgo openbsd LDFLAGS: -lm
-#cgo dragonfly LDFLAGS: -lm
 
 #include "duktape.h"
 #include <stdbool.h>
diff --git a/duktape.go b/duktape.go
index dcf116a..f2090d3 100644
--- a/duktape.go
+++ b/duktape.go
@@ -1,8 +1,8 @@
 package duktape
 
 /*
-#cgo !windows CFLAGS: -std=c99 -O3 -Wall -fomit-frame-pointer -fstrict-aliasing
-#cgo windows CFLAGS: -O3 -Wall -fomit-frame-pointer -fstrict-aliasing
+#cgo !windows CFLAGS: -std=c99 -O3 -Wall -fomit-frame-pointer -fstrict-aliasing -Wno-unused-value -Wno-unused-function
+#cgo windows CFLAGS: -O3 -Wall -fomit-frame-pointer -fstrict-aliasing -Wno-unused-value -Wno-unused-function
 #cgo linux LDFLAGS: -lm
 #cgo freebsd LDFLAGS: -lm
 #cgo openbsd LDFLAGS: -lm