Visual Studio doesn't have unistd.h; signal.h isn't needed for the MSVC build

Daniel Kroening · Daniel Kroening · commit 237b31a4d3d4 · 2017-09-16T09:23:12.000+01:00
diff --git a/src/solvers/sat/satcheck_minisat2.cpp b/src/solvers/sat/satcheck_minisat2.cpp
@@ -10,10 +10,9 @@ Author: Daniel Kroening, kroening@kroening.com
 
 #ifndef _MSC_VER
 #include <inttypes.h>
-#endif
-
 #include <signal.h>
 #include <unistd.h>
+#endif
 
 #include <cassert>
 #include <stack>
