# \[PATCH\] alpha: fix fpu.h usage in userspace

- From: Mike Frysinger \<hidden\>
- Date: 2012-05-25 05:42:11 
- List: linux-alpha
- Page: https://ratatoskr.run/linux-alpha/2012/05/13326200
- Thread: https://ratatoskr.run/linux-alpha/2012/05/13326200/t.md

```text
After commit ec2212088c42ff7d1362629ec26dda4f3e8bdad3, the fpu.h header
which we install for userland started depending on special_insns.h which
is not installed.  However, fpu.h only uses that for __KERNEL__ code, so
protect the inclusion the same way to avoid build breakage in glibc:
/usr/include/asm/fpu.h:4:31: fatal error: asm/special_insns.h: No such file or directory

Cc: <redacted>
Reported-by: Matt Turner <redacted>
Signed-off-by: Mike Frysinger <redacted>
---
 arch/alpha/include/asm/fpu.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/alpha/include/asm/fpu.h b/arch/alpha/include/asm/fpu.h
index db00f78..e477bcd 100644
--- a/arch/alpha/include/asm/fpu.h
+++ b/arch/alpha/include/asm/fpu.h
@@ -1,7 +1,9 @@
 #ifndef __ASM_ALPHA_FPU_H
 #define __ASM_ALPHA_FPU_H
 
+#ifdef __KERNEL__
 #include <asm/special_insns.h>
+#endif
 
 /*
  * Alpha floating-point control register defines:
-- 
1.7.8.6

```