Make the infer tag logic a bit more magical since a lot of old packages still 
exist which utilize this functionality.

http://bugs.gentoo.org/show_bug.cgi?id=77921

--- libtool-1.5.10/ltmain.in
+++ libtool-1.5.10/ltmain.in
@@ -242,7 +242,21 @@
 	    esac
 	    CC_quoted="$CC_quoted $arg"
 	  done
+	    # user sometimes does CC=<HOST>-gcc so we need to match that to 'gcc'
+	    trimedcc=`echo ${CC} | $SED -e "s/${host}-//g"`
+	    # and sometimes libtool has CC=<HOST>-gcc but user does CC=gcc
+	    extendcc=${host}-${CC}
+	    # and sometimes libtool has CC=<OLDHOST>-gcc but user has CC=<NEWHOST>-gcc  
+	    # (Gentoo-specific hack because we always export $CHOST)
+	    mungedcc=${CHOST-${host}}-${trimedcc}
 	    case "$@ " in
+	      "cc "* | " cc "* | "${host}-cc "* | " ${host}-cc "*|\
+	      "gcc "* | " gcc "* | "${host}-gcc "* | " ${host}-gcc "*)
+	      tagname=CC
+	      break ;;
+	      "$trimedcc "* | " $trimedcc "* | "`$echo $trimedcc` "* | " `$echo $trimedcc` "*|\
+	      "$extendcc "* | " $extendcc "* | "`$echo $extendcc` "* | " `$echo $extendcc` "*|\
+	      "$mungedcc "* | " $mungedcc "* | "`$echo $mungedcc` "* | " `$echo $mungedcc` "*|\
 	      " $CC "* | "$CC "* | " `$echo $CC` "* | "`$echo $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$echo $CC_quoted` "* | "`$echo $CC_quoted` "*)
 	      # The compiler in the base compile command matches
 	      # the one in the tagged configuration.