diff --git a/libc/kernel/arch-x86/asm/required-features.h b/libc/kernel/arch-x86/asm/required-features.h
new file mode 100644
index 0000000..a96517a
--- /dev/null
+++ b/libc/kernel/arch-x86/asm/required-features.h
@@ -0,0 +1,44 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _ASM_REQUIRED_FEATURES_H
+#define _ASM_REQUIRED_FEATURES_H 1
+
+#define NEED_FPU (1<<(X86_FEATURE_FPU & 31))
+
+#define NEED_PAE 0
+#define NEED_CX8 0
+
+#define NEED_CMOV 0
+
+#define NEED_3DNOW 0
+
+#define NEED_PSE 0
+#define NEED_MSR 0
+#define NEED_PGE 0
+#define NEED_FXSR 0
+#define NEED_XMM 0
+#define NEED_XMM2 0
+#define NEED_LM 0
+
+#define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|  NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|  NEED_XMM|NEED_XMM2)
+#define SSE_MASK (NEED_XMM|NEED_XMM2)
+
+#define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW)
+
+#define REQUIRED_MASK2 0
+#define REQUIRED_MASK3 0
+#define REQUIRED_MASK4 0
+#define REQUIRED_MASK5 0
+#define REQUIRED_MASK6 0
+#define REQUIRED_MASK7 0
+
+#endif