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Re: Latest M4 fails M4 checks

From: Paul Eggert
Subject: Re: Latest M4 fails M4 checks
Date: Tue, 20 Apr 2021 23:15:40 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

In <https://lists.gnu.org/archive/html/autoconf/2021-04/msg00001.html> on 4/20/21 4:21 AM, Jeffrey Walton wrote:

Maybe it's time to provide an updated M4. A 6 year old version of M4
that crashes is useless.

It's long past time for a new GNU m4 to be published. I'm not surprised that GNU m4 won't run on the latest macOS, as macOS has changed so much recently. Worse, GNU m4 won't build even on the latest GNU/Linux. (That is, although the GNU m4 code on Savannah in branch-1.4 will build under GNU/Linux, the latest release GNU m4 1.4.18 won't build.)

Today I took the time to port GNU m4 branch-1.4 to macOS 11.2.3, so the next GNU m4 release should run on that macOS version. Please try the results of my efforts. You can get them from Savannah <https://savannah.gnu.org/git/?group=m4> on branch-1.4 and build from Git, or you can try the following tarball which I just now generated from the latest commit e9a56f3e94454077e68f1eb3d583f745e6cef12e:


I just now used this tarball on macOS 11.2.3 (arm64), ran './configure; make check' and all tests passed. It'd be helpful to know whether it runs on your macOS version too, if it's different from mine.

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