Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

Pull kbuild changes from Michal Marek:
 "The main part of kbuild for v3.7 contains:
   - Fix for scripts/Makefile.modpost to not choke on a '.ko' substring
     in the build directory path
   - Two warning fixes (modpost and main Makefile)
   - __compiletime_error works also with gcc 4.3
   - make tar{gz,bz2,xz}-pkg uses default compression settings instead
     of saving as many bytes as possible (this should actually be in the
     misc branch, I don't know why I applied it here)."

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  compiler-gcc4.h: correct verion check for __compiletime_error
  modpost: Permit .GCC.command.line sections
  Kbuild: use normal compression settings for tar*-pkg
  scripts/Makefile.modpost: error in finding modules from .mod files.
  kbuild: Remove useless warning while appending KCFLAGS

scripts/package/buildtar

@@ -28,15 +28,15 @@ case "${1}" in
 		file_ext=""
 		;;
 	targz-pkg)
-		compress="gzip -c9"
+		compress="gzip"
 		file_ext=".gz"
 		;;
 	tarbz2-pkg)
-		compress="bzip2 -c9"
+		compress="bzip2"
 		file_ext=".bz2"
 		;;
 	tarxz-pkg)
-		compress="xz -c9"
+		compress="xz"
 		file_ext=".xz"
 		;;
 	*)