diff -r d8ca76573eb3 -r 8a144437db7d m4/lx_check_soplex.m4
--- a/m4/lx_check_soplex.m4	Tue Apr 28 13:38:06 2009 +0100
+++ b/m4/lx_check_soplex.m4	Mon Apr 27 20:02:37 2009 +0100
@@ -55,7 +55,7 @@
     LIBS="$lx_save_libs"
 
     if test x"$lx_soplex_found" = x"yes"; then
-      AC_DEFINE([HAVE_SOPLEX], [1], [Define to 1 if you have SOPLEX.])
+      AC_DEFINE([LEMON_HAVE_SOPLEX], [1], [Define to 1 if you have SOPLEX.])
       AC_MSG_RESULT([yes])
     else
       SOPLEX_CXXFLAGS=""