diff -r f3792d5bb294 -r 8d289c89d43e configure.ac
--- a/configure.ac	Wed Apr 29 17:48:18 2009 +0100
+++ b/configure.ac	Wed Apr 29 17:48:41 2009 +0100
@@ -25,7 +25,7 @@
 dnl Check the existence of long long type.
 AC_CHECK_TYPE(long long, [long_long_found=yes], [long_long_found=no])
 if test x"$long_long_found" = x"yes"; then
-  AC_DEFINE([HAVE_LONG_LONG], [1], [Define to 1 if you have long long.])
+  AC_DEFINE([LEMON_HAVE_LONG_LONG], [1], [Define to 1 if you have long long.])
 fi
 
 dnl Checks for programs.