On 6/9/2017 11:51 AM, Eric Blake wrote: > On 06/09/2017 10:01 AM, Soegtrop, Michael wrote: >> Dear cyg Simple, >> >>> but it would be most beneficial if you caused the stdio of your >>> Windows applications to be in binary format instead of text format. Then >>> the >>> CR wouldn't be an issue during the pipe process. Why does your applications >>> stdio need to be in text format instead of binary format? >> >> it is not my application I have issues with. I am building many open source >> tools and libraries which are maintained by others, and as you said, these >> others have every right to deny implementing windows specific workarounds in >> their tools or build scripts. Why should anybody use "wb" mode to open a >> file in a Linux centric app > > Using "wb" is GOOD practice in programs like tar, that WANT to produce > their output as binary no matter what. > > But you are mixing things up. "wb" is binary mode, but manipulating CRs > is only done in text mode. Text mode is only possible with "wt" (a > Cygwin extension that doesn't work elsewhere), or with "w" (depending on > the underlying mount - on Cygwin, "w" is text on text mode mounts, and > binary on pipelines and binary mode mounts) (on other platforms, "w" is > always text mode, but indistinguishable from "wb" binary mode). >
Uhm, 'wt' and 'wb' came from MS itself. GNU GCC was adapted to allow it and just ignores it on systems that don't need it. >> or mess around with the input of sed to remove CRs in a build script for >> such an app? > > If you are writing a Linux app that processes data produced on a windows > machine, then YOU must strip CR from that data (Linux sed will NOT strip > it). So now cygwin sed does the same thing. > >> Of cause the same is true for cygwin, except that I think building MinGW >> apps is an intended use case for cygwin. > > Building mingw apps may be one use of cygwin, but it is not the > "intended use case". The intended use case of cygwin is to emulate as > much as possible of a linux environment. If building for mingw on Linux > requires you to explicitly strip CR when dealing with data from Windows, > then so should building for mingw on Cygwin. > Exactly. The other option is to use MSYS where this issue is dealt with. -- cyg Simple -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
