PATCH: account for eglibc in _pick_variant patterns

[Oliver Kiddle <okiddle@yahoo.co.uk>]

Completion for iconv was broken on Debian, the reason being that Debian
uses eglibc. iconv --version output therefore says EGLIBC instead of
GNU. I checked for other programs in libc-bin and found the same issue
also affected a couple of other completion functons.

Oliver

Index: Completion/Unix/Command/_getent
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Command/_getent,v
retrieving revision 1.2
diff -u -r1.2 _getent
--- Completion/Unix/Command/_getent	9 Dec 2011 14:51:55 -0000	1.2
+++ Completion/Unix/Command/_getent	11 Nov 2012 21:50:30 -0000
@@ -5,12 +5,13 @@
 local -a args
 typeset -A opt_args
 
-if _pick_variant -r is_gnu gnu=GNU unix --version; then
+if _pick_variant -r is_gnu gnu='(GNU|EGLIBC)' unix --version; then
   args+=(
     '(- 1 *)'{-\?,--help}'[display help information]'
     '(- 1 *)--usage[display a short usage message]'
     '(- 1 *)'{-V,--version}'[display version information]'
     {-s,--service=}'[specify service configuration to use]:service:->services'
+    '(-i --no-idn)'{-i,--no-idn}'[disable IDN encoding]'
   )
 fi
 
Index: Completion/Unix/Command/_iconv
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Command/_iconv,v
retrieving revision 1.7
diff -u -r1.7 _iconv
--- Completion/Unix/Command/_iconv	18 Aug 2011 14:28:50 -0000	1.7
+++ Completion/Unix/Command/_iconv	11 Nov 2012 21:50:30 -0000
@@ -4,13 +4,13 @@
 local LOCPATH="${LOCPATH:-/usr/lib/nls/loc}"
 local -U codeset
 
-if _pick_variant gnu=GNU unix --version; then
+if _pick_variant gnu='(GNU|EGLIBC)' unix --version; then
 
   local exargs="--list -? --help --usage --version -V"
   _arguments -C -S -s \
     "(-f --from-code $exargs)"{-f+,--from-code=}'[specify code set of input file]:code set:->codeset' \
     "(-t --to-code $exargs)"{-t+,--to-code=}'[specify code set for output]:code set:->codeset' \
-    '(- 1)--list[list all character code sets]' \
+    '(- 1 -l --list)'{-l,--list}'[list all character code sets]' \
     "($exargs)-c[omit invalid characters from output]" \
     "(-o --output $exargs)"{-o+,--output=}'[specify output file]:output file:_files' \
     "(-s --silent --verbose $exargs)"{-s,--silent}'[suppress warnings]' \
Index: Completion/Unix/Command/_ldd
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Command/_ldd,v
retrieving revision 1.3
diff -u -r1.3 _ldd
--- Completion/Unix/Command/_ldd	11 Feb 2012 12:56:16 -0000	1.3
+++ Completion/Unix/Command/_ldd	11 Nov 2012 21:50:30 -0000
@@ -1,12 +1,12 @@
 #compdef ldd
 
-if _pick_variant gnu=GNU solaris --version; then
+if _pick_variant gnu='(GNU|EGLIBC)' solaris --version; then
   args=(
     '(- *)--version[display version information]'
     '(- *)--help[display help information]'
     '(-v --verbose)'{-v,--verbose}'[include symbol versioning information]'
     '(-d --data-relocs)'{-d,--data-relocs}'[perform data relocations and report missing objects]'
-    '(-f --function-relocs)'{-f,--function-relocs}'[perform data/function relocations and report missing objects]'
+    '(-r --function-relocs)'{-r,--function-relocs}'[perform data/function relocations and report missing objects]'
     '(-u --unused)'{-u,--unused}'[display any unused objects]'
   )
 else