diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1461cef9..817fda4d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,6 +15,15 @@ set(CMAKE_CXX_STANDARD 17)
 include(FortranCInterface)
 FortranCInterface_VERIFY(CXX)
 
+
+FortranCInterface_HEADER(${CMAKE_BINARY_DIR}/include/fortran_interface.h
+                            MACRO_NAMESPACE "FC_"
+                            SYMBOL_NAMESPACE "FC_")
+
+# directories
+set(DIRECTORIES uno ${CMAKE_BINARY_DIR}/include)
+
+
 set(CMAKE_CXX_FLAGS "-Wall -Wextra -Wnon-virtual-dtor -pedantic -Wunused-value -Wconversion")
 set(CMAKE_CXX_FLAGS_DEBUG "-pg")
 set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG") # disable asserts
@@ -28,8 +37,6 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${C
 option(WITH_GTEST "Enable GoogleTest" OFF)
 message(STATUS "GoogleTest: WITH_GTEST=${WITH_GTEST}")
 
-# directories
-set(DIRECTORIES uno)
 
 # source files
 file(GLOB UNO_SOURCE_FILES
diff --git a/uno/solvers/BQPD/BQPDSolver.cpp b/uno/solvers/BQPD/BQPDSolver.cpp
index afac9949..a888e48a 100644
--- a/uno/solvers/BQPD/BQPDSolver.cpp
+++ b/uno/solvers/BQPD/BQPDSolver.cpp
@@ -12,8 +12,8 @@
 #include "tools/Infinity.hpp"
 #include "tools/Logger.hpp"
 #include "options/Options.hpp"
+#include "fortran_interface.h"
 
-#define FC_GLOBAL(name,NAME) NAME
 #define WSC FC_GLOBAL(wsc,WSC)
 #define KKTALPHAC FC_GLOBAL(kktalphac,KKTALPHAC)
 #define BQPD FC_GLOBAL(bqpd,BQPD)
diff --git a/uno/solvers/MA57/MA57Solver.cpp b/uno/solvers/MA57/MA57Solver.cpp
index 5f5b0d53..6e482d48 100644
--- a/uno/solvers/MA57/MA57Solver.cpp
+++ b/uno/solvers/MA57/MA57Solver.cpp
@@ -6,23 +6,30 @@
 #include "linear_algebra/SymmetricMatrix.hpp"
 #include "linear_algebra/Vector.hpp"
 #include "tools/Logger.hpp"
+#include "fortran_interface.h"
+
+#define MA57ID FC_GLOBAL(ma57id, MA57ID)
+#define MA57AD FC_GLOBAL(ma57ad, MA57AD)
+#define MA57BD FC_GLOBAL(ma57bd, MA57BD)
+#define MA57CD FC_GLOBAL(ma57cd, MA57CD)
+#define MA57DD FC_GLOBAL(ma57dd, MA57DD)
 
 namespace uno {
    extern "C" {
    // MA57
    // default values of controlling parameters
-   void ma57id_(double cntl[], int icntl[]);
+   void MA57ID(double cntl[], int icntl[]);
    // symbolic factorization
-   void ma57ad_(const int* n, const int* ne, const int irn[], const int jcn[], const int* lkeep, int keep[], int iwork[], int icntl[], int info[], double
+   void MA57AD(const int* n, const int* ne, const int irn[], const int jcn[], const int* lkeep, int keep[], int iwork[], int icntl[], int info[], double
    rinfo[]);
    // numerical factorization
-   void ma57bd_(const int* n, int* ne, const double a[], /* out */ double fact[], const int* lfact, /* out */ int ifact[], const int* lifact,
+   void MA57BD(const int* n, int* ne, const double a[], /* out */ double fact[], const int* lfact, /* out */ int ifact[], const int* lifact,
          const int* lkeep, const int keep[], int iwork[], int icntl[], double cntl[], /* out */ int info[], /* out */ double rinfo[]);
    // linear system solve without iterative refinement
-   void ma57cd_(const int* job, const int* n, double fact[], int* lfact, int ifact[], int* lifact, const int* nrhs, double rhs[], const int* lrhs, double
+   void MA57CD(const int* job, const int* n, double fact[], int* lfact, int ifact[], int* lifact, const int* nrhs, double rhs[], const int* lrhs, double
    work[], int* lwork, int iwork[], int icntl[], int info[]);
    // linear system solve with iterative refinement
-   void ma57dd_(const int* job, const int* n, int* ne, const double a[], const int irn[], const int jcn[], double fact[], int* lfact, int ifact[], int*
+   void MA57DD(const int* job, const int* n, int* ne, const double a[], const int irn[], const int jcn[], double fact[], int* lfact, int ifact[], int*
    lifact, const double rhs[], double x[], double resid[], double work[], int iwork[], int icntl[],
          double cntl[], int info[], double rinfo[]);
    }
@@ -36,7 +43,7 @@ namespace uno {
       this->row_indices.reserve(number_nonzeros);
       this->column_indices.reserve(number_nonzeros);
       // set the default values of the controlling parameters
-      ma57id_(this->cntl.data(), this->icntl.data());
+      MA57ID(this->cntl.data(), this->icntl.data());
       // suppress warning messages
       this->icntl[4] = 0;
       // iterative refinement enabled
@@ -61,7 +68,7 @@ namespace uno {
       const int nnz = static_cast<int>(matrix.number_nonzeros());
 
       // symbolic factorization
-      ma57ad_(/* const */ &n,
+      MA57AD(/* const */ &n,
             /* const */ &nnz,
             /* const */ this->row_indices.data(),
             /* const */ this->column_indices.data(),
@@ -95,7 +102,7 @@ namespace uno {
       int nnz = static_cast<int>(matrix.number_nonzeros());
 
       // numerical factorization
-      ma57bd_(&n,
+      MA57BD(&n,
             &nnz,
             /* const */ matrix.data_pointer(),
             /* out */ this->fact.data(),
@@ -116,7 +123,7 @@ namespace uno {
 
       // solve the linear system
       if (this->use_iterative_refinement) {
-         ma57dd_(&this->job, &n, &nnz, matrix.data_pointer(), this->row_indices.data(), this->column_indices.data(),
+         MA57DD(&this->job, &n, &nnz, matrix.data_pointer(), this->row_indices.data(), this->column_indices.data(),
                this->fact.data(), &this->factorization.lfact, this->ifact.data(), &this->factorization.lifact,
                rhs.data(), result.data(), this->residuals.data(), this->work.data(), this->iwork.data(), this->icntl.data(),
                this->cntl.data(), this->info.data(), this->rinfo.data());
@@ -125,7 +132,7 @@ namespace uno {
          // copy rhs into result (overwritten by MA57)
          result = rhs;
 
-         ma57cd_(&this->job, &n, this->fact.data(), &this->factorization.lfact, this->ifact.data(),
+         MA57CD(&this->job, &n, this->fact.data(), &this->factorization.lfact, this->ifact.data(),
                &this->factorization.lifact, &this->nrhs, result.data(), &lrhs, this->work.data(), &this->lwork, this->iwork.data(),
                this->icntl.data(), this->info.data());
       }