diff --git a/src/blas/_hypre_blas.h b/src/blas/_hypre_blas.h
index cfb06ab9a..04aa431a7 100644
--- a/src/blas/_hypre_blas.h
+++ b/src/blas/_hypre_blas.h
@@ -17,6 +17,8 @@
 #include "_hypre_utilities.h"
 #include "fortran.h"
 
+#include <HYPRE_config.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -27,6 +29,29 @@ extern "C" {
 
 #ifndef HYPRE_USING_HYPRE_BLAS
 
+#if defined(HYPRE_SINGLE)
+#define hypre_dasum   hypre_F90_NAME_BLAS(sasum ,SASUM )
+#define hypre_daxpy   hypre_F90_NAME_BLAS(saxpy ,SAXPY )
+#define hypre_dcopy   hypre_F90_NAME_BLAS(scopy ,SCOPY )
+#define hypre_ddot    hypre_F90_NAME_BLAS(sdot  ,SDOT  )
+#define hypre_dgemm   hypre_F90_NAME_BLAS(sgemm ,SGEMM )
+#define hypre_dgemv   hypre_F90_NAME_BLAS(sgemv ,SGEMV )
+#define hypre_dger    hypre_F90_NAME_BLAS(sger  ,SGER  )
+#define hypre_dnrm2   hypre_F90_NAME_BLAS(snrm2 ,SNRM2 )
+#define hypre_drot    hypre_F90_NAME_BLAS(srot  ,SROT  )
+#define hypre_dscal   hypre_F90_NAME_BLAS(sscal ,SSCAL )
+#define hypre_dswap   hypre_F90_NAME_BLAS(sswap ,SSWAP )
+#define hypre_dsymm   hypre_F90_NAME_BLAS(ssymm ,SSYMM )
+#define hypre_dsymv   hypre_F90_NAME_BLAS(ssymv ,SSYMV )
+#define hypre_dsyr2   hypre_F90_NAME_BLAS(ssyr2 ,SSYR2 )
+#define hypre_dsyr2k  hypre_F90_NAME_BLAS(ssyr2k,SSYR2K)
+#define hypre_dsyrk   hypre_F90_NAME_BLAS(ssyrk ,SSYRK )
+#define hypre_dtrmm   hypre_F90_NAME_BLAS(strmm ,STRMM )
+#define hypre_dtrmv   hypre_F90_NAME_BLAS(strmv ,STRMV )
+#define hypre_dtrsm   hypre_F90_NAME_BLAS(strsm ,STRSM )
+#define hypre_dtrsv   hypre_F90_NAME_BLAS(strsv ,STRSV )
+#define hypre_idamax  hypre_F90_NAME_BLAS(isamax,ISAMAX)
+#else
 #define hypre_dasum   hypre_F90_NAME_BLAS(dasum ,DASUM )
 #define hypre_daxpy   hypre_F90_NAME_BLAS(daxpy ,DAXPY )
 #define hypre_dcopy   hypre_F90_NAME_BLAS(dcopy ,DCOPY )
@@ -48,6 +73,7 @@ extern "C" {
 #define hypre_dtrsm   hypre_F90_NAME_BLAS(dtrsm ,DTRSM )
 #define hypre_dtrsv   hypre_F90_NAME_BLAS(dtrsv ,DTRSV )
 #define hypre_idamax  hypre_F90_NAME_BLAS(idamax,IDAMAX)
+#endif
 
 #endif
 
diff --git a/src/utilities/HYPRE_utilities.h b/src/utilities/HYPRE_utilities.h
index e43278f24..09d651e75 100644
--- a/src/utilities/HYPRE_utilities.h
+++ b/src/utilities/HYPRE_utilities.h
@@ -83,9 +83,17 @@ typedef double HYPRE_Real;
 #endif
 
 #if defined(HYPRE_COMPLEX)
+/* support for float double and long double complex types */
+#if defined(HYPRE_SINGLE)
+typedef float _Complex HYPRE_Complex;
+#define HYPRE_MPI_COMPLEX MPI_C_FLOAT_COMPLEX
+#elif defined(HYPRE_LONG_DOUBLE)
+typedef long double _Complex HYPRE_Complex;
+#define HYPRE_MPI_COMPLEX MPI_C_LONG_DOUBLE_COMPLEX
+#else /* default */
 typedef double _Complex HYPRE_Complex;
 #define HYPRE_MPI_COMPLEX MPI_C_DOUBLE_COMPLEX  /* or MPI_LONG_DOUBLE ? */
-
+#endif
 #else  /* default */
 typedef HYPRE_Real HYPRE_Complex;
 #define HYPRE_MPI_COMPLEX HYPRE_MPI_REAL
diff --git a/src/utilities/_hypre_utilities.h b/src/utilities/_hypre_utilities.h
index 55493df6d..8db8ac2da 100644
--- a/src/utilities/_hypre_utilities.h
+++ b/src/utilities/_hypre_utilities.h
@@ -309,6 +309,9 @@ extern "C" {
 #define MPI_CHAR            hypre_MPI_CHAR
 #define MPI_LONG            hypre_MPI_LONG
 #define MPI_BYTE            hypre_MPI_BYTE
+
+#define MPI_C_FLOAT_COMPLEX hypre_MPI_COMPLEX
+#define MPI_C_LONG_DOUBLE_COMPLEX hypre_MPI_COMPLEX
 #define MPI_C_DOUBLE_COMPLEX hypre_MPI_COMPLEX
 
 #define MPI_SUM             hypre_MPI_SUM
diff --git a/src/utilities/complex.c b/src/utilities/complex.c
index ba5cebb45..a53b7c2a1 100644
--- a/src/utilities/complex.c
+++ b/src/utilities/complex.c
@@ -14,31 +14,61 @@
 HYPRE_Complex
 hypre_conj( HYPRE_Complex value )
 {
+#if defined(HYPRE_SINGLE)
+   return conjf(value);
+#elif defined(HYPRE_LONG_DOUBLE)
+   return conjl(value);
+#else
    return conj(value);
+#endif
 }
 
 HYPRE_Real
 hypre_cabs( HYPRE_Complex value )
 {
+#if defined(HYPRE_SINGLE)
+   return cabsf(value);
+#elif defined(HYPRE_LONG_DOUBLE)
+   return cabsl(value);
+#else
    return cabs(value);
+#endif
 }
 
 HYPRE_Real
 hypre_creal( HYPRE_Complex value )
 {
+#if defined(HYPRE_SINGLE)
+   return crealf(value);
+#elif defined(HYPRE_LONG_DOUBLE)
+   return creall(value);
+#else
    return creal(value);
+#endif
 }
 
 HYPRE_Real
 hypre_cimag( HYPRE_Complex value )
 {
+#if defined(HYPRE_SINGLE)
+   return cimagf(value);
+#elif defined(HYPRE_LONG_DOUBLE)
+   return cimagl(value);
+#else
    return cimag(value);
+#endif
 }
 
 HYPRE_Complex
 hypre_csqrt( HYPRE_Complex value )
 {
+#if defined(HYPRE_SINGLE)
+   return csqrtf(value);
+#elif defined(HYPRE_LONG_DOUBLE)
+   return csqrtl(value);
+#else
    return csqrt(value);
+#endif
 }
 
 #endif
diff --git a/src/utilities/mpistubs.h b/src/utilities/mpistubs.h
index 0aa3fd66a..34c9b7100 100644
--- a/src/utilities/mpistubs.h
+++ b/src/utilities/mpistubs.h
@@ -55,6 +55,9 @@ extern "C" {
 #define MPI_CHAR            hypre_MPI_CHAR
 #define MPI_LONG            hypre_MPI_LONG
 #define MPI_BYTE            hypre_MPI_BYTE
+
+#define MPI_C_FLOAT_COMPLEX hypre_MPI_COMPLEX
+#define MPI_C_LONG_DOUBLE_COMPLEX hypre_MPI_COMPLEX
 #define MPI_C_DOUBLE_COMPLEX hypre_MPI_COMPLEX
 
 #define MPI_SUM             hypre_MPI_SUM