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Emacs is currently not compatible with the dynamic stack sizes in upcoming glibc 2.34 (soon to be imported into the buildroot). The build fails like this:
../../src/sysdep.c:1821:22: error: variably modified 'sigsegv_stack' at file scope
1821 | static unsigned char sigsegv_stack[SIGSTKSZ];
| ^~~~~~~~~~~~~
make[2]: Leaving directory '/builddir/build/BUILD/emacs-27.2/build-gtk/src'
This Fedora commit
commit 181aafcdb7ee2fded9fce4cfc448f27edccc927f
Author: Scott Talbert <swt>
Date: Sat Mar 27 00:10:16 2021 -0400
Fix FTBFS with glibc 2.34
backports upstream commit f97e07ea807cc6d38774a3888a15091b20645ac6 ("Port alternate signal stack to upcoming glibc 2.34"), addressing this issue for now.
You can test a fix before glibc 2.34 is merged using this command:
koji -p stream build --scratch c9s-build-side-102-stack-gate git+https://gitlab.com/redhat/centos-stream/rpms/emacs#origin/c9s
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (new packages: emacs), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2022:2369
Emacs is currently not compatible with the dynamic stack sizes in upcoming glibc 2.34 (soon to be imported into the buildroot). The build fails like this: ../../src/sysdep.c:1821:22: error: variably modified 'sigsegv_stack' at file scope 1821 | static unsigned char sigsegv_stack[SIGSTKSZ]; | ^~~~~~~~~~~~~ make[2]: Leaving directory '/builddir/build/BUILD/emacs-27.2/build-gtk/src' This Fedora commit commit 181aafcdb7ee2fded9fce4cfc448f27edccc927f Author: Scott Talbert <swt> Date: Sat Mar 27 00:10:16 2021 -0400 Fix FTBFS with glibc 2.34 backports upstream commit f97e07ea807cc6d38774a3888a15091b20645ac6 ("Port alternate signal stack to upcoming glibc 2.34"), addressing this issue for now. You can test a fix before glibc 2.34 is merged using this command: koji -p stream build --scratch c9s-build-side-102-stack-gate git+https://gitlab.com/redhat/centos-stream/rpms/emacs#origin/c9s