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TARGET_HELP: --target-help vs. --help=target

From: Georg-Johann Lay <avr at gjlay dot de>
To: gcc at gcc dot gnu dot org
Date: Wed, 23 Feb 2011 14:55:50 +0100
Subject: TARGET_HELP: --target-help vs. --help=target

Hi, I noticed a difference between --target-help and --help=target

Whilst --target-help also calls target hooh TARGET_HELP to display
additional information, using --help=target does not.

This is in sync with the documentation, but appears a bit odd. It this
a desired behaviour and is there a specific rationale to not display
all information with --help=target?

Thanks, Johann

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