A bug in headers_install for ARCH=x86_64 yields an asm/ directory full of
files all of which are using the same #ifdef guard, "__ASM_STUB_" with no
postfix.  So the second and later asm files #included in the same C file
(often through standard headers like ioctl.h) yields no symbols.
Strangeness with the Ubuntu 'tell me if I support something that's not
explcitly mentioned in POSIX, and I'll strip it out' shell, I believe.
We don't need the 'export' but we do need a semicolon at the end of the
FNAME line:
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 
 quiet_cmd_gen            = GEN     $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
       cmd_gen            = \
-FNAME=$(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$@)                   \
+FNAME=$(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$@);                  \
 STUBDEF=__ASM_STUB_`echo $$FNAME | tr a-z.- A-Z__`;                    \
 (echo "/* File autogenerated by 'make headers_install' */" ;           \
 echo "\#ifndef $$STUBDEF" ;                                            \