The following simple patch allow for the bootstrap to be completed:
--- gcc-trunk-r199624/gcc/config/i386/winnt.c~ 2013-05-30
03:26:05.0 +0200
+++ gcc-trunk-r199624/gcc/config/i386/winnt.c 2013-06-04
19:24:49.140625000 +0200
@@ -480,7 +480,7 @@
flags |= SECTION_LINKONCE;
/* S
For the sake of completeness...
Bootstrapping trunk r199624 fails on Cygwin as follows:
$ /work/gcc-trunk-r199624/configure --prefix=/usr/local/gfortran
--program-suffix=-4.9 --enable-languages=c,c++,fortran
--enable-checking=release --enable-threads=posix --enable-libgomp
--enable-bootstrap