This is the mail archive of the cygwin mailing list for the Cygwin project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Standard LEX variable doesn't work in Make.

Am 25.11.2016 um 15:31 schrieb Brian Inglis:

One solution, and the most common in Cygwin, is the package flex should
create a symlink lex if no such symlink or exe exists;

In this case I believe that would be less than fully correct, because flex is not a clean drop-in replacement for generic lex. For that one has to add the '-l' flag. So instead of a symlink one would use a wrapper script much like the 'yacc' script found in the 'bison' package, i.e.:

	#! /bin/sh
	exec /usr/bin/flex -l "$@"

> or by the FHS,
create a group of alternatives, with a slave alternative for each of
its public components e.g. bin, man, info, etc. files.

I don't think 'alternatives' is applicable here. We're not looking at several packages providing the same file --- we're looking at

* single packages offering the same executable under more than one name, causing it to express different personalities, like ex -> vi.exe, view -> vi.exe, latex --> pdftex.exe,

* a subsystem like texlive installing a truckload of executable scripts somewhere else, and links from /bin to them.

So while I agree that the 'alternatives' mechanism could, or even should be used more in Cygwin, I don't think this is one of the cases where that applies.

Problem reports:
Unsubscribe info:

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]