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       mono-config - Mono runtime file format configuration


       The  Mono  runtime  will  load configuration data from the installation
       prefix /etc/mono/config file,  the  ~/.mono/config  or  from  the  file
       pointed by the MONO_CONFIG environment variable.

       For   each   assembly   loaded   a   config   file   with   the   name:
       /path/to/the/assembly.exe.config   is   loaded   as   well    as    the
       ~/.mono/assemblies/ASSEMBLY/ASSEMBLY.EXT.config file.

       This file controls the behavior of the runtime.

       The  file  contains an XML-like file with various sections, all of them
       contained inside a section (It  actually  uses  GMarkup  to  parse  the

       This  page  describes the Unix-specific and Mono-specific extensions to
       the   configuration   file;     For   complete   details,    see    the web page.

<dllmap> directive

       You  use  the  dllmap  directive  to map shared libraries referenced by
       P/Invoke in your assemblies to a different shared library.

       This is typically used to map Windows libraries to Unix library  names.
       The dllmap element takes two attributes:

       dll    This  should be the same string used in the DllImport attribute,
              optionally prefixed with "i:" to indicate that the  string  must
              be matched in a case-insensitive way

       target This should be the name of the library where the function can be
              found: this name should be suitable for use  with  the  platform
              native shared library loading routines (dlopen etc.), so you may
              want to check the manpages for that, too.

<dllentry> directive

       This directive can be used to map a specific  dll/function  pair  to  a
       different  library and also a different function name. It should appear
       inside a dllmap element with only the dll attribute specified.

       The dllentry element takes 3 attributes:

       dll    This is the target library, where the function can be found.

       name   This is the name of the function as it appears in the  metadata:
              it is the name of the P/Invoke method.

       target This  is  the name of the function to lookup instead of the name
              specified in the P/Invoke method.

Mapping based on operating system and cpu

       Both the dllmap and the  dllentry  elements  allow  the  following  two
       attributes  which  make  it easy to use a single configuration file and
       support multiple operating systems  and  architectures  with  different
       mapping requirements:

       os     This  is  the name of the operating system for which the mapping
              should be applied.  Allowed values  are:  linux,  osx,  solaris,
              freebsd, openbsd, netbsd, windows, aix, hpux.

       cpu    This  is  the  name  of  the  architecture for which the mapping
              should be applied.  Allowed values are: x86, x86-64, sparc, ppc,
              s390, s390x, arm, mips, alpha, hppa, ia64.

              This is the size of registers on the target architecture, it can
              be either 32 or 64.

       The attribute value for both attributes can be a  comma-separated  list
       of  the  allowed values. Additionally, the first character may be a '!'
       to reverse the meaning.  An  attribute  value  of  "!windows,osx",  for
       example,  would  mean  that  the  entry  is considered on all operating
       systems, except on Windows and OS X.  No spaces are allowed in any part
       of the value.

       Note  that  later  entries will override the entries defined earlier in
       the file.


       The following example  maps  references  to  the  `cygwin1.dll'  shared
       library to the `' file.
            <dllmap dll="i:cygwin1.dll" target=""/>
       The  library  name  in  the DllImport attribute is allowed to be in any
       case variant, like the following examples:
            [DllImport ("cygwin1.dll")]
            [DllImport ("Cygwin1.dll")]
            [DllImport ("cygwiN1.Dll")]

       This one maps the following C# method:
            [DllImport ("libc")]
            static extern void somefunction ();
       to differentfunction in , but to the same  function  in
       the  library  when running under the Solaris and FreeBSD
       operating systems.
            <dllmap dll="libc">
                 <dllentry dll="" name="somefunction" target="differentfunction" />
                 <dllentry os="solaris,freebsd" dll="" name="somefunction" target="differentfunction" />



                                                                Mono(Mono 1.0)