diff --git a/test/gmttest.cpp b/test/gmttest.cpp
index beaf607..691bdda 100644
--- a/test/gmttest.cpp
+++ b/test/gmttest.cpp
@@ -9,7 +9,15 @@ int print_func(FILE* fd, const char* str)
  std::cout<<"PRINT: "<<str<<std::endl;
  return 0;
 }
+/*
+int callgmtmodule(void *API, const char *module, int mode, void *args, std::string& res)
+{
+ int pipefd[2];
+ int savefd;
+
 
+}
+*/
 
 int main()
 {
@@ -28,24 +36,28 @@ int main()
  gmtapi=GMT_Create_Session(text,2,0,print_func);
  //io=GMT_Register_IO(gmtapi,GMT_IS_TEXTSET,GMT_IS_DUPLICATE,GMT_IS_NONE,GMT_OUT,0,0);
  //GMT_Encode_ID(gmtapi,fname,io);
+ pipe(pipefd);
+ args+=" ->/dev/fd/"+std::to_string(pipefd[1]);
  opts=GMT_Create_Options(gmtapi,0,(void*)args.c_str());
  //ret=GMT_Init_IO(gmtapi,GMT_IS_TEXTSET,GMT_IS_NONE,GMT_OUT,5,0,opts);
  std::cout<<io<<" "<<GMT_NOTSET<<" "<<fname<<" "<<ret<<std::endl;
 
- pipe(pipefd);
+
  pid=fork();
  if(0==pid)
  {
-  dup2(pipefd[1],1);
+  //dup2(pipefd[1],1);
   GMT_Call_Module(gmtapi,"psbasemap",GMT_MODULE_OPT,opts);
+  close(pipefd[1]);
   exit(0);
  }
  else
  {
   ssize_t br;
-  std::string s="CALL\n";
+//  std::string s="CALL\n";
 //  write(1,s.c_str(),s.length());
-  close(pipefd[1]);
+//  close(pipefd[1]);
+
   do
   {
    br=read(pipefd[0],buffer,4096);
@@ -53,7 +65,8 @@ int main()
    out.append(buffer,br);
   } while(0!=br);
   wait(0);
-  close(pipefd[0]);
+//  close(pipefd[0]);
+
  }
 
  out.shrink_to_fit();