Hi Paolo,
Your just-pushed changes provoked these new warnings:
dfa.c: In function 'state_separate_contexts.isra.1':
dfa.c:2131:1: error: function might be candidate for attribute 'pure' if
it is kn
own to return normally [-Werror=suggest-attribute=pure]
cc1: all warnings being treated as errors
dfa.c: In function 'dfaexec':
dfa.c:3276:14: error: declaration of 'newline' shadows a global
declaration [-Werror=shadow]
dfa.c:573:18: error: shadowed declaration is here [-Werror=shadow]
Please configure with --enable-gcc-warnings.
That would have caught at least the shadowing warning.
For the other, you might have to build on rawhide or with gcc-4.7