Multiple build and configuration fixes

Build process:

  -add datadir and localstatedir substitutions
  -fix layout name
  -fix logfilename misspelling
  -fix evaluation of installation dir variables and
  -replace $foobar by $(foobar) to be usefull in the makefile

Cross compile:

  -add rules for cross-compiling in rules.mk. Okay, rule to check for
   $CC_FOR_BUILD is still missing
  -use CHECK_TOOL instead of CHECK_PROG for ranlib
  -add missing "AR=@AR@" to severaly Makefile.in's
  -cache result for "struct rlimit"
  -compile all helper programs with native and cross compiler
   and use the native version to generate header file


PR:	6384
Submitted by:	"R�diger" Kuhlmann <Tadu@gmx.de>
Reviewed by:	Ryan Bloom


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86399 13f79535-47bb-0310-9956-ffa450edef68