Wrong message 'Pattern not found'

Hello, when I call 'man grep' in Cygwin 1.7.1 and try to search the pattern -P, which is really available, with '/-P', the wrong message 'Pattern not found (press RETURN)' appeared. This behaviour only occurs with Cygwin and only on a certain computer. It works well with Cygwin on another comp

mrtd and duplicate header file loads

Problem. When compiling using gcc and the -mrtd switch, two versions of any included header library file may be loaded, and this generally results in type errors. This error was reported in a more specific form by Angel Robert Lynas back in 2007, though he only refers to time.h. Here is an exampl