--- tests/c.at.orig	Sat Jan 21 08:46:39 2012
+++ tests/c.at	Thu May 24 23:31:45 2012
@@ -140,7 +140,7 @@ AT_CLEANUP
 AT_SETUP([AC_PROG_CPP without warnings])
 
 # Ignore if /lib/cpp doesn't work
-AT_CHECK([[echo '#include <stdio.h>' | /lib/cpp || exit 77]],
+AT_CHECK([[echo '#include <stdio.h>' | /usr/bin/cpp || exit 77]],
   [], [ignore], [ignore])
 
 # A cpp which exit status is meaningless.
@@ -180,7 +180,7 @@ AT_CLEANUP
 AT_SETUP([AC_PROG_CPP via CC])
 
 # Ignore if /lib/cpp doesn't work
-AT_CHECK([[echo '#include <stdio.h>' | /lib/cpp || exit 77]],
+AT_CHECK([[echo '#include <stdio.h>' | /usr/bin/cpp || exit 77]],
   [], [ignore], [ignore])
 
 AT_DATA([mycc],