Re: Extra CR symbol from backticks on Cygwin 2.9.0
Hi Eric, Thanks! This option is what I am looking for. However I cannot agree with you on bash behavior in Cygwin. Section of command substitution in bash documentation says: https://www.gnu.org/software/bash/manual/bash.html#Command-Substitution "...with any trailing newlines deleted." That is why I expected that bash should remove trailing newlines in command substitution results, which are CRLF on Windows. >From my point of view, bash in Cygwin should follow the same rule on Linux and Windows: remove trailing newlines in command substitution. So remove trailing CRLF on Windows. Best regards, Nikolay Melekhin 2017-09-12 1:00 GMT+03:00 Eric Blake : > On 09/11/2017 04:27 PM, Nikolay Melekhin wrote: >> >> I'd expect that Cygwin must remove CRLF symbols from backtick results, > > You expected wrong - by default Cygwin does the same as Linux, which > does NOT remove CR from command substitution (only LF). > >> but remove only LF symbol. It gets different results on Windows and >> Linux. Result on Windows has additional CR symbol and for example >> string comparision, which is working in Linux, fails in Windows. > > It is NOT a bug in Cygwin, but in your failure to sanitize your input. > You'd get the same behavior on Linux if you pass in CR bytes. That said, > >> >> Is any kind of an option/setting which removes such CRs or it is a bug >> in Cygwin? > > Read the release announcements: Cygwin bash DOES have an 'igncr' shell > option (set -o igncr) that does exactly what you are asking for - it > makes bash ignore CR characters in command substitutions and other places: > > https://cygwin.com/ml/cygwin-announce/2017-01/msg00047.html > > The option is not on by default, but exists because it is a common > desire when you can't be bothered to otherwise sanitize CR out of your > input stream. > > -- > Eric Blake, Principal Software Engineer > Red Hat, Inc. +1-919-301-3266 > Virtualization: qemu.org | libvirt.org > -- 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
[ANNOUNCEMENT] emacs 25.3-1
The following packages have been uploaded to the Cygwin distribution: * emacs-25.3-1 * emacs-el-25.3-1 * emacs-X11-25.3-1 * emacs-w32-25.3-1 Emacs is a powerful, customizable, self-documenting, modeless text editor. Emacs contains special code editing features, a scripting language (elisp), and the capability to read mail, news, and more without leaving the editor. This is an update to the latest upstream release. It is an emergency release to fix a security vulnerability. See http://lists.gnu.org/archive/html/info-gnu-emacs/2017-09/msg0.html for details. CYGWIN NOTES 1. The emacs, emacs-w32, and emacs-X11 packages each provide an Emacs binary. These are emacs-nox.exe, emacs-w32.exe, and emacs-X11.exe, respectively, in order of increasing priority. The postinstall scripts use the 'alternatives' system to create a symlink /usr/bin/emacs that resolves to the highest-priority binary that you have installed. Thus the command 'emacs' will start emacs-X11.exe if you've installed the emacs-X11 package; otherwise, it will start emacs-w32.exe if you've installed emacs-w32; otherwise, it will start emacs-nox.exe. Similar remarks apply to emacsclient. If you have installed both emacs-w32 and emacs-X11 and prefer to give higher priority to emacs-w32, run the script /usr/bin/set-emacs-default-w32.sh You can later restore emacs-X11 as the default by running /usr/bin/set-emacs-default-X11.sh 2. Install emacs-X11 if you want to use the X11 GUI. You can then type 'emacs&' in an xterm window, and emacs will start in a new window. 3. Install emacs-w32 if you want to use the native Windows GUI instead of X11. 4. If you use the Emacs Rmail library, consider installing Cygwin's mailutils package. It provides a utility /usr/bin/movemail.exe that has more features and is more secure than the version provided by emacs (and installed under /usr/libexec/emacs). If you use the Emacs MH-E library, consider installing Cygwin's mailutils-mh package. To use it, put the line (load "mailutils-mh") in your site-start.el or ~/.emacs file. 5. If you have sshd running and want to be able to run emacs-X11 from a remote machine, you need to enable X11 forwarding by adding the following line to /etc/sshd_config: X11Forwarding yes You might also need to have the cygserver service running. 6. The script /usr/bin/make-emacs-shortcut can be used to create a shortcut for starting emacs. See /usr/share/doc/emacs/README.Cygwin for details. Ken Brown Cygwin's Emacs maintainer -- 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
Re: Extra CR symbol from backticks on Cygwin 2.9.0
On 09/11/2017 04:27 PM, Nikolay Melekhin wrote: > > I'd expect that Cygwin must remove CRLF symbols from backtick results, You expected wrong - by default Cygwin does the same as Linux, which does NOT remove CR from command substitution (only LF). > but remove only LF symbol. It gets different results on Windows and > Linux. Result on Windows has additional CR symbol and for example > string comparision, which is working in Linux, fails in Windows. It is NOT a bug in Cygwin, but in your failure to sanitize your input. You'd get the same behavior on Linux if you pass in CR bytes. That said, > > Is any kind of an option/setting which removes such CRs or it is a bug > in Cygwin? Read the release announcements: Cygwin bash DOES have an 'igncr' shell option (set -o igncr) that does exactly what you are asking for - it makes bash ignore CR characters in command substitutions and other places: https://cygwin.com/ml/cygwin-announce/2017-01/msg00047.html The option is not on by default, but exists because it is a common desire when you can't be bothered to otherwise sanitize CR out of your input stream. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org signature.asc Description: OpenPGP digital signature
Extra CR symbol from backticks on Cygwin 2.9.0
Command line utilities in Windows add CRLF as new line symbol in an output.
For example:
echo "Windows"
TEST=`cmd /c "echo Win"`
echo " ${TEST} " | od -t x1
echo "CYGWIN"
TEST=`echo Win`
echo " ${TEST} " | od -t x1
Output:
Windows
000 20 57 69 6e 0d 20 0a
007
CYGWIN
000 20 57 69 6e 20 0a
006
I'd expect that Cygwin must remove CRLF symbols from backtick results,
but remove only LF symbol. It gets different results on Windows and
Linux. Result on Windows has additional CR symbol and for example
string comparision, which is working in Linux, fails in Windows.
Is any kind of an option/setting which removes such CRs or it is a bug
in Cygwin?
Best regards,
Nikolay Melekhin
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Re: Problems with building Perl modules after upgrade to g++ (GCC) 6.4.0
On Mon, Sep 11, 2017 at 11:51 AM, Achim Gratz wrote: > Unless you know what you're doing and can navigate the inevitable > obstacles, do not use cpan on Cygwin. I have been building Perl packages for years without problems. I use WWW::Mechanize in several programs, and it has a lot of pre-requisites. >> SSLeay.xs:163:25: fatal error: openssl/err.h: No such file or directory >> #include > > The most likely reason is that you do not have the *-devel package for > openssl installed. Missed that, thanks! I don't know why Cygwin "upgraded" me from Perl 5.22 to Perl 5.24. I am building a new Cygwin installation from scratch (via setup) and it has Perl 5.22 (as expected) and gcc 6.4. I seem to remember this problem happening in the not-too-distant past when gcc 6.x was experimental, so I probably picked up the experimantal Perl 5.24 as well. I tried to roll back Perl from 5.24 -> 5.22 in my existing Cygwin (non-experimental) installation but "perl --version" still returned version 5.24 Anyway, I'll have a clean installation soon, I hope. - Jim -- Jim Reisert AD1C, , http://www.ad1c.us -- 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
Re: Problems with building Perl modules after upgrade to g++ (GCC) 6.4.0
Jim Reisert AD1C writes: > After upgrading to g++ (GCC) 6.4.0, I am being forced to > reload/rebuild a bunch of Perl modules that had been working fine. I > had the same issue with GCC 6.3. One module is particularly > troublesome. I have the openssl library installed. This is with the > 64-bit Cygwin. I attached cygcheck.out I don't know why that would be necessary or why the gcc update has anything to do with it. > # cpan install Net::SSLeay Unless you know what you're doing and can navigate the inevitable obstacles, do not use cpan on Cygwin. > SSLeay.xs:163:25: fatal error: openssl/err.h: No such file or directory > #include The most likely reason is that you do not have the *-devel package for openssl installed. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Factory and User Sound Singles for Waldorf Q+, Q and microQ: http://Synth.Stromeko.net/Downloads.html#WaldorfSounds -- 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
Re: Problems with building Perl modules after upgrade to g++ (GCC) 6.4.0
On 9/11/2017 12:33 PM, Jim Reisert AD1C wrote: @INC contains: /usr/lib/perl5/site_perl/5.24/x86_64-cygwin-threads /usr/lib/perl5/site_perl/5.24 /usr/lib/perl5/vendor_perl/5.24/x86_64-cygwin-threads /usr/lib/perl5/vendor_perl/5.24 /usr/lib/perl5/5.24/x86_64-cygwin-threads /usr/lib/perl5/5.24 . It looks like you're using the test release of perl-5.24. But the Perl modules in the Cygwin distro have been built for perl-5.22. If you downgrade to perl-5.22.4-1, you should be OK. Ken -- 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
Re: Problems with building Perl modules after upgrade to g++ (GCC) 6.4.0
I now realize that Net::SSLeay and LWP::Protocol::https are both pre-compiled modules that I can download from Cygwin. But even after re-installing LWP::Protocol::https, my Perl program still won't run: Can't locate LWP/Protocol/https.pm in @INC (you may need to install the LWP::Protocol::https module) (@INC contains: /usr/lib/perl5/site_perl/5.24/x86_64-cygwin-threads /usr/lib/perl5/site_perl/5.24 /usr/lib/perl5/vendor_perl/5.24/x86_64-cygwin-threads /usr/lib/perl5/vendor_perl/5.24 /usr/lib/perl5/5.24/x86_64-cygwin-threads /usr/lib/perl5/5.24 .) at ../scripts/QRZ_daily.pl line 17. I don't know why it's not finding the module, and what this has to with gcc. -- Jim Reisert AD1C, , http://www.ad1c.us -- 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
Problems with building Perl modules after upgrade to g++ (GCC) 6.4.0
After upgrading to g++ (GCC) 6.4.0, I am being forced to reload/rebuild a bunch of Perl modules that had been working fine. I had the same issue with GCC 6.3. One module is particularly troublesome. I have the openssl library installed. This is with the 64-bit Cygwin. I attached cygcheck.out I would roll back to GCC 5.x but that doesn't appear to be an option in Setup. # cpan install Net::SSLeay Running Mkbootstrap for Net::SSLeay () chmod 644 "SSLeay.bs" "/usr/bin/perl.exe" "-Iinc" "/usr/lib/perl5/5.24/ExtUtils/xsubpp" -typemap "/usr/lib/perl5/5.24/ExtUtils/typemap" -typemap "typemap" SSLeay.xs > SSLeay.xsc && mv SSLeay.xsc SSLeay.c gcc -c -DPERL_USE_SAFE_PUTENV -D_GNU_SOURCE -U__STRICT_ANSI__ -ggdb -O2 -pipe -Wimplicit-function-declaration -fdebug-prefix-map=/mnt/share/maint/perl.x86_64/build=/usr/src/debug/perl-5.24.1-1 -fdebug-prefix-map=/mnt/share/maint/perl.x86_64/src/perl-5.24.1=/usr/src/debug/perl-5.24.1-1 -fwrapv -fno-strict-aliasing -fstack-protector-strong -D_FORTIFY_SOURCE=2 -DUSEIMPORTLIB -O3 -DVERSION=\"1.81\" -DXS_VERSION=\"1.81\" "-I/usr/lib/perl5/5.24/x86_64-cygwin-threads/CORE" SSLeay.c SSLeay.xs:163:25: fatal error: openssl/err.h: No such file or directory #include ^ compilation terminated. make: *** [Makefile:357: SSLeay.o] Error 1 MIKEM/Net-SSLeay-1.81.tar.gz /usr/bin/make -- NOT OK -- Jim Reisert AD1C, , http://www.ad1c.us cygcheck.out Description: Binary data -- 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
