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-rw-r--r--extractor/extract.cc6
1 files changed, 5 insertions, 1 deletions
diff --git a/extractor/extract.cc b/extractor/extract.cc
index 387cbe9b..e5b6f6ff 100644
--- a/extractor/extract.cc
+++ b/extractor/extract.cc
@@ -8,7 +8,11 @@
#include <boost/filesystem.hpp>
#include <boost/program_options.hpp>
#include <boost/program_options/variables_map.hpp>
-#include <omp.h>
+#if HAVE_OPEN_MP
+ #include <omp.h>
+#else
+ const unsigned omp_get_num_threads() { return 1; }
+#endif
#include "alignment.h"
#include "data_array.h"