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fix ppc-aix build failures with spaces in CC (internal) variable

From: Olivier Hainque <hainque at adacore dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Wed, 11 Apr 2012 16:43:10 +0200
Subject: fix ppc-aix build failures with spaces in CC (internal) variable

We sometimes get to invoke Makefile targets with a CC variable value containing
spaces (for extra options, typically). This causes failure at some stages on
powerpc-aix from mh-ppc-aix which has

  LDFLAGS = `case $(CC) in *gcc*) echo -Wl,-bbigtoc ;; esac;`

The problem is the expansion of spaces as part of the case controlling value,
triggering shell syntax errors.

This patch fixes this by adding quotes around.

OK to commit ?

Bootstrapped and regtested on powerpc-aix-5.2.

Thanks in adavnce,

Olivier

2012-04-11  Olivier Hainque  <hainque@adacore.com>

	* config/mh-ppc-aix (LDFLAGS): Quote $(CC).

Attachment: aix-quotecc.dif
Description: video/dv

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