Build and package on MSYS2

[oscarfv]

This is related to #354.

I see some people working with MSYS2 here (@k-takata).

Yesterday I compiled universal-ctags on MSYS2 with configure && make method but the process resulted on an executable with on support for regexs. Once this was activated (invoking configure with LIBS=-lpcreposix or something) the executable crashes when it needs to use that functionality (for --regex-lang= etc). This is the same problem that Exhuberant Ctags 5.8 has. For 5.8, using the Mingw-specific makefile works.

I wonder if there is a method for building Universal Ctags on MSYS and if somebody plans to package it. I can take care of the later, once we have a solid build process.

[k-takata]

invoking configure with LIBS=-lpcreposix or something

If you want to link with libpcreposix, you must include pcreposix.h instead of regex.h.
You might think that the function prototype of regcomp and regexec are same with GNU regex and pcreposix, but GNU regex's regex_t and pcreposix's regex_t are not compatible.

Added

I compile u-ctags with ./configure --enable-iconv --disable-external-sort && make on MSYS2 (without setting LIBS). This configuration uses bundled regex library.

[oscarfv]

@k-takata : thanks for the tips. I submitted a merge request with a tiny change. Once this is merged, I'll submit a PKGBUILD file to MSYS2.

BTW, the failed tests are something to be concerned about, for a user that is switching from Exuberant Ctags to Universal Ctags? I mean, is Universal Ctags ready for replacing Exuberant Ctags? (In the MSYS2 case, specifically)

[masatake]

BTW, the failed tests are something to be concerned about, ...

@oscarfv, which test case you are talking about? I and @k-takata have worked hard to fix such failures on windows via AppVeyor. Could you try the latest code?

[oscarfv]

I was thinking of #494, which was closed a few hours ago, not something that I tried.

MSYS2 now has a binary package for universal-ctags.

That binary package was created 6 days ago, based on 80256f4. Do you think it is important to rebuild with the latest code?

[masatake]

That binary package was created 6 days ago, based on 80256f4. Do you think it is important to rebuild with the latest code?

Yes, a minor bug is fixed.

[oscarfv]

Thanks, as universal-ctags if built from git on MSYS2, it will be rebuilt rather sooner than later. Requesting a new build for solving a minor bug is not worth the trouble.