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From: "mikpelinux at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/60830] ICE on bootstrapping on cygwin
Date: Sun, 13 Apr 2014 12:33:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60830

--- Comment #2 from Mikael Pettersson <mikpelinux at gmail dot com> ---
I'm getting a different error bootstrapping the 4.9.0 RC on Cygwin:

checking for C compiler default output file name... 
configure: error: in `/home/mikpe/objdir/i686-pc-cygwin/libgcc':
configure: error: C compiler cannot create executables
See `config.log' for more details.
Makefile:14037: recipe for target 'configure-stage2-target-libgcc' failed
make[2]: *** [configure-stage2-target-libgcc] Error 77
make[2]: Leaving directory '/home/mikpe/objdir'
Makefile:16771: recipe for target 'stage2-bubble' failed
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory '/home/mikpe/objdir'
Makefile:16974: recipe for target 'bootstrap' failed
make: *** [bootstrap] Error 2

Inspecting i686-pc-cygwin/libgcc/config.log shows a number of failed attempts
to run gcc/xgcc:

xgcc: error: unrecognized command line option '-isystem'
xgcc: error: unrecognized command line option '-v'

which eventually causes configure to give up.

This is with cygwin-1.7.28 (32-bit), Windows 7 (64-bit), Core-i7.