RFC Windows SDK compile error

Question

Hello.  I downloaded the RFC SDK for Windows (RFC_23-20000056.SAR) and I am attempting to compile some example code I found out on the Web.  I am NOT a C+/C person so I am new to the build process and requirements for linking, etc..  I am using Bloodshed Dev-C+ to edit, compile and build and I am running into the following errors with 'undefined references' to RFC methods:
++++++++++  LOG OUTPUT  ++++++++++++++++++++++++++++++
Compiler: Default compiler
Building Makefile: "C:\DEV\RFC_Test_console\Makefile.win"
Executing  make...
make.exe -f "C:\DEV\RFC_Test_console\Makefile.win" all
g+.exe -c main.cpp -o main.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"C:/Dev-Cpp/include/c/3.4.2/backward"  -I"C:/Dev-Cpp/include/c/3.4.2/mingw32"  -I"C:/Dev-Cpp/include/c+/3.4.2"  -I"C:/Dev-Cpp/include"  -I"C:/DEV/RFC_Test_console/rfcsdk/include"  
g++.exe main.o  -o "RFC_Test_console.exe" -L"C:/Dev-Cpp/lib" -L"C:/DEV/RFC_Test_console/rfcsdk/lib"  rfcsdk/bin/librfc32.dll 
main.o(.text+0x1ad):main.cpp: undefined reference to `ItCreate@16'
main.o(.text+0x203):main.cpp: undefined reference to `RfcOpen@4'
main.o(.text+0x23e):main.cpp: undefined reference to `RfcCall@16'
collect2: ld returned 1 exit status
make.exe: *** [RFC_Test_console.exe] Error 1
Execution terminated
+++++++++++++  END LOG OUTPUT  +++++++++++++++++++++++++
I have my Dev-C++ project include directory set to ..\rfcsdk\include and my project lib directory set to ..\rfcsdk\lib.
Here is my code:
#include <cstdlib>
#include <iostream>
#include <vector>
#include "saprfc.h"
#include "sapitab.h"
using namespace std;
int main(int argc, char *argv[])
    static RFC_ENV            new_env;
    static RFC_OPTIONS        rfc_opt;
    static RFC_CONNOPT_R3ONLY rfc_connopt_r3only;
    static RFC_PARAMETER      exporting[1];
    static RFC_PARAMETER      importing[1];
    static RFC_TABLE          tables[1];
    RFC_HANDLE                handle;
    RFC_RC                    rc;
    char *                    exception_ptr;
    ITAB_H                    ltab;
    char                      lst[100];
    char *                    lpt;
    int                       line, lnr, len;
    //Objects for data retrieval
    struct apr_rule
      int product_key_1;
      int product_key_2;
      double alpha_1;
      double alpha_2;
      double gamma;
      std::string operation;
   //std:: vector<apr_rule>          APR_VEC;
   rfc_opt.client   = "003";
   rfc_opt.user     = "FRESINA";
   rfc_opt.language = "EN";
   rfc_opt.password = "init21";
   rfc_opt.trace    = 0;
   rfc_opt.mode     = RFC_MODE_R3ONLY;
   rfc_opt.connopt = &rfc_connopt_r3only;
   rfc_connopt_r3only.hostname = "ld1051.wdf.sap.corp";
   rfc_connopt_r3only.sysnr = 9;
   ltab    = ItCreate( "BARMI", 100, 0, 0 );
   importing[0].name = NULL;
   exporting[0].name = NULL;
   tables[0].name = "A";
   tables[0].nlen = 1;
   tables[0].type = TYPC;
   tables[0].ithandle = ltab;
   tables[0].leng = 100;
   handle = RfcOpen( &rfc_opt );
   if( handle == RFC_HANDLE_NULL )
        return 1;
Install error handler
    //new_env.allocate = NULL;
    //new_env.errorhandler = rfc_error;
    //RfcEnvironment (&new_env);
   rc = RfcCall (handle,
                      cU("RFC_SYSTEM_INFO"),
                      exporting,
                      tables);
    if (rc != RFC_OK)
        //rfc_error (cU("RfcCall"));
    return EXIT_SUCCESS;
Any ideas why this won't compile?  I have also tried the sample code in the SDK (sapinfo.c) and this will not compile as it has an issue with the printfU() macro and a statement around '_MSC_VER'.
Thanks.
Anthony

Answer 1

Hi,
This problem usually occurs when you are installing from an ISO build for a different architecture.
Windows SDK now have different ISO’s for different architectures. Please download the correct ISO based on your system platform and architecture type.
Karen Hu
TechNet Community Support