Attachment 138030 Details for Bug 105461 – [PATCH] man: Use shell function from make to process pkg-config

[patch] [PATCH] man: Use shell function from make to process pkg-config

0001-man-Use-shell-function-from-make-to-process-pkg-conf.patch (text/plain), 1.54 KB, created by Tomasz on 2018-03-12 16:17:12 UTC

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Creator: Tomasz

Created: 2018-03-12 16:17:12 UTC

Size: 1.54 KB

patch

obsolete

>From 596391787a3a4db6460f0391b61ea29306c158df Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Tomasz=20Mi=C4=85sko?= <tomasz.miasko@gmail.com>
>Date: Mon, 12 Mar 2018 00:00:00 +0000
>Subject: [PATCH] man: Use shell function from make to process pkg-config
> output.
>
>pkg-config uses backslashes to escape special characters (including
>spaces among others) in its --cflags and --libs output.
>
>This is incompatible with command substitution as used in POSIX shell,
>i.e., $(cmd ...) or `cmd ...`, because field splitting following such
>substitution splits the result using sequences of <space>, <tab>, and
><newline> characters as separators (supposing default value of IFS).
>Backslash does not have any special meaning in this process, and thus
>escaping for those characters is ineffective.
>
>Suggest using shell make function instead, which will expand the
>results into the command output (converting newlines into spaces, but
>not processing it further), and then when final command is executed
>by POSIX shell, the shell tokenization rules will take into effect
>which do respect backslash as an escape character and split input using
>unquoted <blank> (<space> or <tab> in POSIX locale).
>---
> pkg-config.1 | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/pkg-config.1 b/pkg-config.1
>index a147fc8..fe21085 100644
>--- a/pkg-config.1
>+++ b/pkg-config.1
>@@ -32,7 +32,7 @@ scenario in a Makefile:
> .PP
> .nf
> program: program.c
>-	cc program.c `pkg-config --cflags --libs gnomeui`
>+	cc program.c $(shell pkg-config --cflags --libs gnomeui)
> .fi
> .PP
> .I pkg-config
>-- 
>2.16.2
>

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