multiprocesing.eclass: Remove redirect_alloc_fd

Remove the redirect_alloc_fd function that is no longer used since
the removal of multijob* functions. The function is complex, has little
potential use and an equivalent functionality is built-in in newer bash
versions, making it completely unnecessary for EAPI 6.

Closes: https://github.com/gentoo/gentoo/pull/6696

diff --git a/eclass/multiprocessing.eclass b/eclass/multiprocessing.eclass
index 6ca9b4fa78503b3d4f53c0a51fb8d85a8036e9c1..3e8b2f9d2540eaf381caa567e00838d418abf250 100644 (file)
--- a/eclass/multiprocessing.eclass
+++ b/eclass/multiprocessing.eclass
@@ -100,39 +100,4 @@ makeopts_loadavg() {
        echo ${lavg:-${2:-999}}
 }
 
-# @FUNCTION: redirect_alloc_fd
-# @USAGE: <var> <file> [redirection]
-# @DESCRIPTION:
-# Find a free fd and redirect the specified file via it.  Store the new
-# fd in the specified variable.  Useful for the cases where we don't care
-# about the exact fd #.
-redirect_alloc_fd() {
-       local var=$1 file=$2 redir=${3:-"<>"}
-
-       # Make sure /dev/fd is sane on Linux hosts. #479656
-       if [[ ! -L /dev/fd && ${CBUILD} == *linux* ]] ; then
-               eerror "You're missing a /dev/fd symlink to /proc/self/fd."
-               eerror "Please fix the symlink and check your boot scripts (udev/etc...)."
-               die "/dev/fd is broken"
-       fi
-
-       if [[ $(( (BASH_VERSINFO[0] << 8) + BASH_VERSINFO[1] )) -ge $(( (4 << 8) + 1 )) ]] ; then
-               # Newer bash provides this functionality.
-               eval "exec {${var}}${redir}'${file}'"
-       else
-               # Need to provide the functionality ourselves.
-               local fd=10
-               while :; do
-                       # Make sure the fd isn't open.  It could be a char device,
-                       # or a symlink (possibly broken) to something else.
-                       if [[ ! -e /dev/fd/${fd} ]] && [[ ! -L /dev/fd/${fd} ]] ; then
-                               eval "exec ${fd}${redir}'${file}'" && break
-                       fi
-                       [[ ${fd} -gt 1024 ]] && die 'could not locate a free temp fd !?'
-                       : $(( ++fd ))
-               done
-               : $(( ${var} = fd ))
-       fi
-}
-
 fi