I get this message a few times when I use gcc with strict settings. On my own installation I gave the unnamed structs and unions an name and this seemed to resolve this. Although this doesn't do more then generate a warning when using a very strict c compiler it should be resolved i think :)
Message: /usr/include/cygwin/signal.h:48: error: ISO C doesn't support unnamed structs/unions gcc flags: -ggdb -ansi -W -Wall -Werror -pedantic-errors -O2 -Wformat=2 -Wno-unused -DPOSIX -DPOSIX_SOURCE Grtz, Bart van der Werf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/