* Pipelines and return codes
@ 2003-01-13 3:30 Rolf Campbell
0 siblings, 0 replies; only message in thread
From: Rolf Campbell @ 2003-01-13 3:30 UTC (permalink / raw)
To: cygwin
/home/rcampbell> (true | true) && echo true || echo false
true
/home/rcampbell> (true | false) && echo true || echo false
false
/home/rcampbell> (false | true) && echo true || echo false
true
/home/rcampbell> (false | false) && echo true || echo false
false
The third test above yields different results when run on Linux. I'm
wondering if this was the desired result or not? (This is not a new
problem, it's been around for at least a year of releases). It makes
some makefiles not work as expected, specifically, the GCC manual
describes how to perform auto-dependency analysis like:
gcc ... | sed ...
But, if gcc fails, sed will still work, thus make will not consider it a
failure and will continue.
I know there are many ways to avoid this specific problem, already
implemented one. Just wanted to let you guys know.
-Rolf Campbell
Software Designer
Tropic Networks
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2003-01-12 22:09 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-01-13 3:30 Pipelines and return codes Rolf Campbell
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).