[RTEMS Project] #2610: unhex.c does not build on MSYS2

[RTEMS trac]

#2610: unhex.c does not build on MSYS2
----------------------+--------------------
 Reporter:  chrisj    |      Owner:  chrisj
     Type:  defect    |     Status:  new
 Priority:  highest   |  Milestone:  4.11
Component:  tools     |    Version:  4.11
 Severity:  critical  |   Keywords:
----------------------+--------------------
 Building unhex.c on Windows gives the following error:

 {{{
 gcc -DHAVE_CONFIG_H -I. -I/c/opt/rtems/kernel/rtems.git/tools/build     -g
 -O2 -MT rtems-bin2c.o -MD -MP -MF .deps/rtems-bin2c.Tpo -c -o rtems-
 bin2c.o /c/opt/rtems/kernel/rtems.git/tools/build/rtems-bin2c.c
 In file included from
 C:/opt/rtems/kernel/rtems.git/tools/build/unhex.c:36:0:
 C:/opt/rtems/kernel/rtems.git/tools/build/unhex.c: In function 'error':
 C:/opt/rtems/kernel/rtems.git/tools/build/unhex.c:687:16: warning:
 '_errno' redeclared without dllimport attribute: previous dllimport
 ignored [-Wattributes]
      extern int errno;
                 ^
 }}}

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Ticket URL: <http://devel.rtems.org/ticket/2610>
RTEMS Project <http://www.rtems.org/>
RTEMS Project