Remove no-longer-needed Solaris 2.4 vfork bug workaround.
The workaround was for improving performance on Solaris 2.4, but is getting in the way now. Emacs will still work if someone is still running Solaris 2.4 in a museum somewhere; Sun dropped support for Solaris 2.4 in 2003. * configure.ac (ac_cv_func_vfork_works): Default to 'no' on Solaris 2.4, so that AC_FUNC_VFORK doesn't think vfork works. * src/callproc.c (Fcall_process) [HAVE_WORKING_VFORK]: * src/process.c (create_process) [HAVE_WORKING_VFORK]: Omit now-unnecessary workaround for the Solaris 2.4 vfork bug, since Emacs no longer uses vfork on that platform.
Showing with 34 additions and 56 deletions