* genscript.sh: Add support for generating a .xa script for use with the --auto-import option.
* ld.texinfo: Document the new behaviour of the --auto-import option.
* ldint.texinfo: Document new script generation.
* emulparams/i386pe.sh (GENERATE_AUTO_IMPORT): Define.
* emulparams/i386pe_posix.sh (GENERATE_AUTO_IMPORT): Define.
* emulparams/i386pep.sh (GENERATE_AUTO_IMPORT): Define.
* emultemp/pe.em (..._get_script): Support the use of the auto import script.
* scripttempl/pe.sc: Put the .rdata input sections into the .data output section when creating an auto import script.
* scripttempl/pep.sc: Likewise.
emulparams/i386pe_posix.sh, emulparams/mcorepe.sh, emulparams/mipspe.sh,
emulparams/ppcpe.sh, scripttempl/pe.sc: Define TARGET_PAGE_SIZE.
* scripttempl/pe.sc: Make the virtual address and file offset synced if the
alignment is lower than the target page size.
* emulparams/i386pe.sh: Define ENTRY, SUBSYSTEM, and
INITIAL_SYMBOL_CHAQR.
* emulparams/i386pe_posix.sh: New file.
* Makefile.am (YACC): If bison is not in the source tree, use
@YACC@ rather than bison -y.
(LEX): If flex is not in the source tree, use @LEX@ rather than
flex.
(ALL_EMULATIONS): Add ei386pe_posix.o.
(ei386pe_posix.c): New target.
* configure.tgt (i[3456]86-*-interix*): New target.
* configure.host (i[3456]86-pc-interix*): New host.
* Makefile.in: Rebuild.
