[Pidgin] #5527: Allow winpidgin to build using MSYS 1.0.10

[Pidgin]

#5527: Allow winpidgin to build using MSYS 1.0.10
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Reporter:  dharding  |       Owner:  datallah       
    Type:  patch     |      Status:  new            
Priority:  minor     |   Component:  winpidgin (gtk)
 Version:  2.4.1     |    Keywords:                 
 Pending:  0         |  
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 I am using MSYS (rather than Cygwin) to build Pidgin on Windows.  To do
 so, I had to make one change to the build files.  The version of sed that
 ships with MSYS 1.0.10 does not support the -i option for modifying files
 in place.  This was causing the generation of libpurple/version.h to fail.
 I modified libpurple/win32/targets.mak to redirect the sed output to a
 temporary file, followed by a mv to rename the temporary file to the
 target file instead of modifying the target file in place.

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Ticket URL: <http://developer.pidgin.im/ticket/5527>
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