fix second instance of complex.h for c++ as well
/* Complex type (single precision) */
#ifndef lapack_complex_float
+#ifndef __cplusplus
#include <complex.h>
+#else
+#include <complex>
+#endif
#define lapack_complex_float float _Complex
#endif
@@ -86,7 +90,11 @@ lapack_complex_float lapack_make_complex_float( float re, float im );
/* Complex type (double precision) */
#ifndef lapack_complex_double
+#ifndef __cplusplus
#include <complex.h>
+#else
+#include <complex>
+#endif
#define lapack_complex_double double _Complex
#endif
