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[avr-gcc-list] avrdude on cygwin

From: Ruud Vlaming
Subject: [avr-gcc-list] avrdude on cygwin
Date: Wed, 19 Nov 2008 00:08:19 +0100
User-agent: KMail/1.9.1

I have a problem compiling the avrdude 5.5 on the
latest cygwin. With
  ../avr-libc-$LIBC_VERSIE/configure --prefix=$PREFIX 
--build=`../avr-libc-$LIBC_VERSIE/config.guess` --host=avr
  make && make install

it returns (after some work) with:

In file included from lexer.c:990:
 error: conflicting types for 'usleep'
../avrdude-5.5/avrdude.h:50: error: previous declaration of 'usleep' was here

make[2]: *** [libavrdude_a-lexer.o] Error 1

The reason is pretty obvious, the unistd.h file is included which
contains the definition:
  int __cdecl __MINGW_NOTHROW usleep(useconds_t useconds);

whereas avrdude.h contains
  void usleep(unsigned long us);

As does btw, the file ppiwin.c:
  void usleep(unsigned long us)
  {  int has_highperf;
      LARGE_INTEGER freq,start,stop,loopend;
      // workaround: although usleep is very precise if using 

Although it is not hard to fix (just temporarily alter the file unistd.h 
to a suitable definition, [tested]) it is not a very nice way for an 
install script.  How could avrdude be patched so that is compiles 
under cygwin?  Or should it be patched at all? Like to hear your 


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