CERES_DONT_HAVE_PROTOCOL_BUFFERS -> CERES_NO_PROTOCOL_BUFFERS.

Change-Id: I6c9f50e4c006faf4e75a8f417455db18357f3187

internal/ceres/linear_least_squares_problems.cc

diff --git a/internal/ceres/linear_least_squares_problems.cc b/internal/ceres/linear_least_squares_problems.cc
index 234fc5e..3e3bcd0 100644
--- a/internal/ceres/linear_least_squares_problems.cc
+++ b/internal/ceres/linear_least_squares_problems.cc
@@ -64,7 +64,7 @@
   return NULL;
 }
 
-#ifndef CERES_DONT_HAVE_PROTOCOL_BUFFERS
+#ifndef CERES_NO_PROTOCOL_BUFFERS
 LinearLeastSquaresProblem* CreateLinearLeastSquaresProblemFromFile(
     const string& filename) {
   LinearLeastSquaresProblemProto problem_proto;
@@ -130,7 +130,7 @@
       << "Ceres to be built with Protocol Buffers support.";
   return NULL;
 }
-#endif  // CERES_DONT_HAVE_PROTOCOL_BUFFERS
+#endif  // CERES_NO_PROTOCOL_BUFFERS
 
 /*
 A = [1   2]
@@ -600,7 +600,7 @@
   return true;
 };
 
-#ifndef CERES_DONT_HAVE_PROTOCOL_BUFFERS
+#ifndef CERES_NO_PROTOCOL_BUFFERS
 bool DumpLinearLeastSquaresProblemToProtocolBuffer(const string& directory,
                                                    int iteration,
                                                    const SparseMatrix* A,