Top level:
Merge from GCC:
PR bootstrap/82856
* multilib.am: New file. From automake.
config:
Merge from GCC:
PR bootstrap/82856
* math.m4, tls.m4: Use AC_LANG_SOURCE.
zlib:
Merge from GCC.
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* Makefile.in: Regenerate.
Also make the automake strictness "foreign". My regeneration of the
three doc/Makefile.in files already had --foreign in the automake
invocation, so this just makes it explicit.
bfd/
* doc/Makefile.am (AUTOMAKE_OPTIONS): Add "foreign".
* doc/Makefile.in: Regenerate.
binutils/
* doc/Makefile.am (AUTOMAKE_OPTIONS): Add "foreign".
* doc/Makefile.in: Regenerate.
gas/
* doc/Makefile.am (AUTOMAKE_OPTIONS): Add "foreign".
* doc/Makefile.in: Regenerate.
zlib/
* Makefile.in: Regenerate.
* configure.ac: Restore old behaviour of only enabling multilibs
when a target subdirectory is defined. This allows building with
srcdir == builddir.
* configure: Regenerate.