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-rw-r--r--src/sat/fraig/fraig.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/sat/fraig/fraig.h b/src/sat/fraig/fraig.h
index 7e595390..1dad21e2 100644
--- a/src/sat/fraig/fraig.h
+++ b/src/sat/fraig/fraig.h
@@ -27,12 +27,17 @@ extern "C" {
/// INCLUDES ///
////////////////////////////////////////////////////////////////////////
+#ifndef SINT64
+#define SINT64
+
#ifdef _WIN32
typedef signed __int64 sint64; // compatible with MS VS 6.0
#else
typedef long long sint64;
#endif
+#endif
+
////////////////////////////////////////////////////////////////////////
/// PARAMETERS ///
////////////////////////////////////////////////////////////////////////