Для работы с XML в C++ предлагается использовать http://www.firstobject.com/dn_markup.htm . Ниже приведен пример конфигурационного xml файла для fcore

<!DOCTYPE fcoreConfig>
<fcoreConfig 
  isForcePath="1" 
  frundPath="/Development/VSTU/linuxdev/_Debug">
  <shellCommands
    name="intel"
    path="%FRUND%/Compiler/Intel/Bin/ia32;%FRUND%/Compiler/VC/Bin"
    lib="%FRUND%/Compiler/Intel/Lib/ia32;%FRUND%/Compiler/VC/Lib;%FRUND%/Lib"
    lic="%FRUND%/Compiler/Intel"
    inc="%FRUND%/Compiler/VC/include" >
    <linker
      command="xilink"
      keys="/OUT:solver.exe /DEFAULTLIB:fsolvelib_i.lib fthrow.lib LIBCMT.LIB *.obj"
      keysDll="/OUT:solver.dll /DLL /IMPLIB:solver.lib /DEFAULTLIB:fsolvelib_i.lib fthrow.lib LIBCMT.LIB /EXPORT:BUILD_TABLES /EXPORT:UNBUILD_TABLES /EXPORT:SOLVE1 /EXPORT:SOLVE2 /EXPORT:SOLVE3 /EXPORT:SOLVE4 /EXPORT:SOLVE5 /EXPORT:STARTUP /EXPORT:DROP /EXPORT:STOPIT /EXPORT:X /EXPORT:TUE /EXPORT:UGR /EXPORT:UPR /EXPORT:REZRHEADER *.obj"/>
    <compilerFortran 
      command="ifort" 
      keys="/fpscomp:ioformat /w /WB /Zd /Zi /libs:static /Qsave /O3 /Threads /c *.f" 
      keysDll="/c /Og /O2 /Ot /QaxSSE2 /QxHost /Zi /w /WB /4Ns /Qsave /NODEFAULTLIB /threads /fpscomp:ioformat *.f"/>
    <compilerCpp 
      command="cl" 
      keys="/O2 /Oi /EHsc /MT /Gy /W3 /nologo /c /TP *.cpp"
      keysDll="/O2 /Oi /EHsc /MT /Gy /W3 /nologo /c /TP *.cpp"/>
  </shellCommands>
  <shellCommands 
    name="gnu" 
    path="%FRUND%/Compiler/GNU/Bin;%FRUND%/Compiler/GNU/Bin/libexec/gcc/i386-pc-mingw32/4.3.0" 
    lib="%FRUND%/Compiler/GNU/Lib"
    inc="%FRUND%/Compiler/GNU/include" >
    <linker 
      command="gfortran" 
      keys="*.o solver.a -o solver.exe" 
      keysDll="*.o solver.a -o -shared solver.dll"/>
    <compilerFortran 
      command="gfortran" 
      keys="-w -c -fno-automatic -fdollar-ok -fpic *.f" 
      keysDll="-w -c -fno-automatic -fdollar-ok -fpic -shared *.f"/>
    <compilerCpp keys="-c -o3 *.cpp" command="gcc" keysDll="-c -o3 -dll *.cpp"/>
  </shellCommands>
</fcoreConfig>