On Tue, Oct 20, 2015 at 11:07 PM, Mike Shal wrote:
if timestamp(foo.o) < timestamp(foo.c) {rebuild foo.o}
>
> to:
>
> if checksum(foo.c) != last_checksum(foo.c) {rebuild things that depend on
> foo.c}
>
> But you can get pretty much all the same benefits without having to hash
> everything just b
On Tue, Oct 20, 2015 at 2:07 PM, Mike Shal wrote:
> I would clarify that the benefit from using the technique in that article is
> really because the rebuild algorithm is essentially changed from:
>
> if timestamp(foo.o) < timestamp(foo.c) {rebuild foo.o}
>
> to:
>
> if checksum(foo.c) != last_che
Follow-up Comment #3, bug #46261 (project make):
There seems to still be missing EINTRLOOP () macro usage on OS X 10.11. The
gcc 5.2.0 parallel build still fails but the initial error in its case is...
make[5]: *** read jobs pipe: No such file or directory. Stop.
...ending with...
make: INTERN
Follow-up Comment #5, bug #46261 (project make):
The full error that we are seeing on OS X 10.11 under make 4.1 called from
perl after a flock() is...
make[5]: *** read jobs pipe: No such file or directory. Stop.
make[5]: *** Waiting for unfinished jobs
libtool: compile: /sw/src/fink.build/
Follow-up Comment #6, bug #46261 (project make):
How do we know that the earlier call to duplicate the file descriptor in the
new_job() subroutine of job.c succeeds?
/* Make sure we have a dup'd FD. */
if (job_rfd < 0)
{
DB (DB_JOBS, ("Duplicate the job FDn"
Follow-up Comment #7, bug #46261 (project make):
using
EINTRLOOP(job_rfd, dup (job_fds[0]));
instead of
job_rfd = dup (job_fds[0]);
in the new_job() subroutine of job.c results in a hang during the parallel
build of gcc 5.2.0 rather than the previous error...
make[5]: *** read jobs pipe: No
Follow-up Comment #8, bug #46261 (project make):
The remaining failure in the build of FSF gcc 5.2.0 with make 4.1 on OS X
10.11 under perl may actually be a latent bug in the libjava Makefiles being
re-exposed. It is identical to one that I previously reported...
https://gcc.gnu.org/bugzilla/sho
A tiny patch for the documentation, adding a missing comma.
Cheers,
John
diff --git a/doc/make.texi b/doc/make.texi
index 86a1aeb..f506102 100644
--- a/doc/make.texi
+++ b/doc/make.texi
@@ -5616,7 +5616,7 @@ Several variables have constant initial values.
@cindex !=
To set a variable fro
On Wed, Oct 21, 2015 at 1:01 AM, Egmont Koblinger wrote:
> Is there any realistic ETA on this feature?
I think you’re missing the fact that nobody is actually working on
these things. Make is an open-source project and not one of the ones
that has direct corporate backing or engineers paid to wor
Follow-up Comment #4, bug #46261 (project make):
The offending code...
#else
/* Set interruptible system calls, and read() for a job token. */
set_child_handler_action_flags (1, waiting_jobs != NULL);
got_token = read (job_rfd, &token, 1);
saved_errno = errno;
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