[GRASS-dev] Re: [GRASS GIS] #1125: wingrass - ctypes - compiling error

[GRASS GIS]

#1125: wingrass - ctypes - compiling error
------------------------------+---------------------------------------------
 Reporter:  hellik            |       Owner:  grass-dev@…              
     Type:  defect            |      Status:  new                      
 Priority:  blocker           |   Milestone:  6.5.0                    
Component:  Compiling         |     Version:  svn-trunk                
 Keywords:  wingrass, ctypes  |    Platform:  MSWindows Vista          
      Cpu:  x86-32            |  
------------------------------+---------------------------------------------

Comment(by glynn):

 Replying to [comment:43 martinl]:
 > > Another alternative is to just keep both versions.
 >
 > shouldn't be versioned version enough?

 Currently, everything uses the unversioned name when linking. But the
 libraries are built using the versioned name then symlinked to the
 unversioned name (on Windows, "ln -s" actually makes a copy). On Windows,
 this causes the versioned name to be embedded in the DLL, and this name is
 preserved when creating the copy. When linking against the DLL, the
 program remembers the name which is embedded in the DLL, not the name used
 in the -l switch, so the program actually depends upon the versioned DLL.

 OTOH, none of this applies to ctypesgen, which uses the name given in a -l
 switch as the name of the library which should be loaded at run-time.

 If you want to use only unversioned libraries, you need to modify
 Shlib.make to create the DLL with the unversioned name. Copying or
 renaming the DLL won't work.

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/1125#comment:44>
GRASS GIS <http://grass.osgeo.org>