Subject: Re: bug#76523: 30.0.93; with-native-compilation=aot breaks some Lisp

From: Stefan Kangas <[email-masked]>
Date: Mon, 24 Feb 2025 19:07:51 +0000

Pip Cet <[email-masked]> writes:

> "Stefan Kangas" <[email-masked]> writes:
>
>> Pip Cet via "Bug reports for GNU Emacs, the Swiss army knife of text
>> editors" <[email-masked]> writes:
>>
>>> "Spencer Baugh via \"Bug reports for GNU Emacs, the Swiss army knife of text editors\"" <[email-masked]> writes:
>>>
>>>> 1. cd ~/src/emacs/emacs-30
>>>> 2. ./configure --without-all --without-x --with-zlib --with-native-compilation=aot && make -j64
>>>> 3. ./src/emacs --batch --eval '(progn (require '\''package) (package-read-from-string "((emacs \"26.1\"))"))'
>>>> 4. Observe this error:
>>>> Error: error ("Can’t read whole string")
>>>>   error("Can't read whole string")
>>>>   package-read-from-string("((emacs \"26.1\"))")
>>>>   (progn (require 'package) (package-read-from-string "((emacs \"26.1\"))"))
>>>>   eval((progn (require 'package) (package-read-from-string "((emacs \"26.1\"))")) t)
>>>>   command-line-1(("--eval" "(progn (require 'package) (package-read-from-string \"((emacs \\\"26.1\\\"))\"))"))
>>>>   command-line()
>>>>   normal-top-level()
>>>> Can’t read whole string
>>>
>>> This is bug#63288, fixed on master but not on emacs-30, IIUC.  One
>>> warkaround is not to pass "-j64" to make.
>>>
>>> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63288
>>
>> Which commit fixes this on master?
>
> 53a5dada413662389a17c551a00d215e51f5049f
>     Fix compilation errors due to insufficient compiler safety (bug#63288)

Thanks.  Eli, Andrea, WDYT about cherry-picking this to emacs-30?