We list bugs in current versions here. See also the section on legacy
systems.
+*** On Solaris 10 sparc, Emacs crashes during the build while saving state.
+This was observed for Emacs 28.1 on Solaris 10 32-bit sparc, with
+Oracle Developer Studio 12.6 (Sun C 5.15). The failure was intermittent,
+and running GNU Make a second time would typically finish the build.
+
*** On Solaris 10, Emacs crashes during the build process.
(This applies only with './configure --with-unexec=yes', which is rare.)
This was reported for Emacs 25.2 on i386-pc-solaris2.10 with Sun