Make C++ files in doc/examples/ compile again.

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

diff --git a/doc/examples/lanczos.cpp b/doc/examples/lanczos.cpp
index 627bb3f87865bb2c79174b0d0e3012fbaad4b124..dcad1cb80beda81865a62f510ca906f759b882e8 100644 (file)
--- a/doc/examples/lanczos.cpp
+++ b/doc/examples/lanczos.cpp
@@ -48,6 +48,7 @@
  * MA  02110-1301 USA
  */
 
+#include <getopt.h>
 #include <vector>
 #include <cstddef> // for size_t
 #include <iostream>