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Re: [PATCH] maintainer-makefile: Fix Apple Xcode 'make syntax-check'.
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From: |
Bruno Haible |
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Subject: |
Re: [PATCH] maintainer-makefile: Fix Apple Xcode 'make syntax-check'. |
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Date: |
Mon, 31 Oct 2022 23:32:58 +0100 |
Hi Simon,
> + @if ! indent --version 2> /dev/null | grep -q 'GNU indent'; then\
As mentioned in the Autoconf manual [1], the grep option '-q' is not portable.
E.g. on Solaris 10:
$ echo | grep -q x
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file . . .
The portable alternative is
grep 'GNU indent' > /dev/null
Bruno
[1]
https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.71/html_node/Limitations-of-Usual-Tools.html