cbfstool: Make sure fileno is available on Cygwin

Hardware / Coreboot - Stefan Reinauer [chromium.org] - 23 October 2015 13:44 UTC

This patch fixes compilation of cbfstool on Cygwin.

As reported in http://review.coreboot.org/#/c/10027 cbfstool on Cygwin likes to be compiled with -D_GNU_SOURCE. That patch was abandoned because it would unwantedly turn on more GNU extensions. Instead of doing that, only enable the define on Cygwin, switch to -std=gnu99 instead of -std=c99 to make fileno and strdup actually available. A MINGW32 check that was forgotten in Makefile was copied over from Makefile.inc to keep the two files in sync.

This patch has no impact on non-Windows builds.

Change-Id: I068b181d67daf9c7280110e64aefb634aa20c69b

354c11d cbfstool: Make sure fileno is available on Cygwin
util/cbfstool/Makefile.inc | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

Upstream: review.coreboot.org

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