ggev - multiple declarations

void ggev (
  char jobvl,
  char jobvr,
  int n,
  std.complex.Complex!(double)* a,
  int lda,
  std.complex.Complex!(double)* b,
  int ldb,
  std.complex.Complex!(double)* alphav,
  std.complex.Complex!(double)* betav,
  std.complex.Complex!(double)* vl,
  int ldvl,
  std.complex.Complex!(double)* vr,
  int ldvr,
  std.complex.Complex!(double)* work,
  int lwork,
  double* rwork,
  ref int info
);

void ggev (
  char jobvl,
  char jobvr,
  int n,
  std.complex.Complex!(float)* a,
  int lda,
  std.complex.Complex!(float)* b,
  int ldb,
  std.complex.Complex!(float)* alphav,
  std.complex.Complex!(float)* betav,
  std.complex.Complex!(float)* vl,
  int ldvl,
  std.complex.Complex!(float)* vr,
  int ldvr,
  std.complex.Complex!(float)* work,
  int lwork,
  float* rwork,
  ref int info
);

void ggev (
  char jobvl,
  char jobvr,
  int n,
  double* a,
  int lda,
  double* b,
  int ldb,
  double* alphar,
  double* alphai,
  double* betav,
  double* vl,
  int ldvl,
  double* vr,
  int ldvr,
  double* work,
  int lwork,
  ref int info
);

void ggev (
  char jobvl,
  char jobvr,
  int n,
  float* a,
  int lda,
  float* b,
  int ldb,
  float* alphar,
  float* alphai,
  float* betav,
  float* vl,
  int ldvl,
  float* vr,
  int ldvr,
  float* work,
  int lwork,
  ref int info
);