uapi glibc compat: fix compilation when !__USE_MISC in glibc

These structures are defined only if __USE_MISC is set in glibc net/if.h
headers, ie when _BSD_SOURCE or _SVID_SOURCE are defined.

CC: Jan Engelhardt <[email protected]>
CC: Josh Boyer <[email protected]>
CC: Stephen Hemminger <[email protected]>
CC: Waldemar Brodkorb <[email protected]>
CC: Gabriel Laskar <[email protected]>
CC: Mikko Rapeli <[email protected]>
Fixes: 4a91cb61bb99 ("uapi glibc compat: fix compile errors when glibc net/if.h included before linux/if.h")
Signed-off-by: Nicolas Dichtel <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h
index d5e38c73377c05fa44607bffe8bfb01112330706..e4f048ee7043d196a0948c9dfc520b78082c6e54 100644 (file)
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -52,7 +52,7 @@
 #if defined(__GLIBC__)
 
 /* Coordinate with glibc net/if.h header. */
-#if defined(_NET_IF_H)
+#if defined(_NET_IF_H) && defined(__USE_MISC)
 
 /* GLIBC headers included first so don't define anything
  * that would already be defined. */