$NetBSD$

sh doesn't like the empty case

--- configure.orig	2010-06-30 12:53:01.000000000 +0000
+++ configure
@@ -18952,11 +18952,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 
 	  syscall=no
-	  if test "x$linux_os" = xyes; then
-	    case $host_cpu in
-
-	    esac
-	  fi
 
 fi
 
@@ -19082,11 +19077,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 
 	  syscall=no
-	  if test "x$linux_os" = xyes; then
-	    case $host_cpu in
-
-	    esac
-	  fi
 
 fi
 
@@ -19489,11 +19479,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 
 	  syscall=no
-	  if test "x$linux_os" = xyes; then
-	    case $host_cpu in
-
-	    esac
-	  fi
 
 fi
 
@@ -19701,11 +19686,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 
 	  syscall=no
-	  if test "x$linux_os" = xyes; then
-	    case $host_cpu in
-
-	    esac
-	  fi
 
 fi
 
