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re PR other/16406 (USE_LD_AS_NEEDED undocumented)

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PR 16406
	* doc/tm.texi (USE_LD_AS_NEEDED, LINK_EH_SPEC): Document.

From-SVN: r88586
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Alan Modra 2004-10-06 00:54:01 +00:00 committed by Alan Modra
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@ -1,3 +1,8 @@
2004-10-06 Alan Modra <amodra@bigpond.net.au>
PR 16406
* doc/tm.texi (USE_LD_AS_NEEDED, LINK_EH_SPEC): Document.
2004-10-05 Kazu Hirata <kazu@cs.umass.edu>
* basic-block.h: Remove the prototype for

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gcc/doc/tm.texi
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@ -306,6 +306,21 @@ driver how to place a reference to @file{libgcc} on the link command
line, but, unlike @code{LIBGCC_SPEC}, it is used unmodified.
@end defmac
@defmac USE_LD_AS_NEEDED
A macro that controls the modifications to @code{LIBGCC_SPEC}
mentioned in @code{REAL_LIBGCC_SPEC}. If nonzero, a spec will be
generated that uses --as-needed and the shared libgcc in place of the
static exception handler library, when linking without any of
@code{-static}, @code{-static-libgcc}, or @code{-shared-libgcc}.
@end defmac
@defmac LINK_EH_SPEC
If defined, this C string constant is added to @code{LINK_SPEC}.
When @code{USE_LD_AS_NEEDED} is zero or undefined, it also affects
the modifications to @code{LIBGCC_SPEC} mentioned in
@code{REAL_LIBGCC_SPEC}.
@end defmac
@defmac STARTFILE_SPEC
Another C string constant used much like @code{LINK_SPEC}. The
difference between the two is that @code{STARTFILE_SPEC} is used at