From: Doug Evans <xdje42@gmail.com>
To: guile-devel <guile-devel@gnu.org>
Subject: GC_VERSION_ALPHA or GC_MICRO_VERSION?
Date: Sat, 7 Jun 2014 09:21:46 -0700 [thread overview]
Message-ID: <CAP9bCMSZJw0YX3DK4Ai-0BOwW5zqPJSwvxqZEjRzdOg0w6ZwMQ@mail.gmail.com> (raw)
Hi.
I was looking into the libgc 7.4.0 "GC_MARKERS" bug,
and found that the workaround in Guile is using GC_ALPHA_VERSION
which I can't find in the bdwgc git tree, but I can find GC_VERSION_MICRO.
Since undefined preprocessor macros evaluate to zero this test will
pass for any 7.4.x.
#if (GC_VERSION_MAJOR == 7 && GC_VERSION_MINOR == 4 \
&& GC_ALPHA_VERSION == 0)
/* BDW-GC 7.4.0 has a bug making it loop indefinitely when using
more
than one marker thread: <https://github.com/ivmai/bdwgc/pull/30>.
Work around it by asking for one marker thread. */
setenv ("GC_MARKERS", "1", 1);
#endif
next reply other threads:[~2014-06-07 16:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-07 16:21 Doug Evans [this message]
2014-06-09 17:28 ` GC_VERSION_ALPHA or GC_MICRO_VERSION? Ludovic Courtès
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