Build example programs to avoid breaking them on API changes

[ginac.git] / doc / examples / derivative.cpp

diff --git a/doc/examples/derivative.cpp b/doc/examples/derivative.cpp
index c1a09b993daa342e3bc722466a6c4b75beadedb1..3b845c05daf42d162097abb1342beca2b838e341 100644 (file)
--- a/doc/examples/derivative.cpp
+++ b/doc/examples/derivative.cpp
@@ -5,7 +5,11 @@
 #include <iostream>
 #include <string>
 #include <stdexcept>
+#ifdef IN_GINAC
+#include "ginac.h"
+#else
 #include <ginac/ginac.h>
+#endif
 using namespace std;
 using namespace GiNaC;