[Buildroot] [PATCH v2] package/cdrkit: fix build with GCC 10

[Yann E. MORIN <yann.morin.1998@free.fr>]

Urja, All,

On 2020-07-19 20:42 +0300, Urja Rannikko spake thusly:
> This patch adds a missing extern on the outfile
> variable in genisoimage.h.
> 
> Signed-off-by: Urja Rannikko <urjaman@gmail.com>

Applied to master, thanks.

> ---
> Note: I would like to see this applied to the LTS 2020.02
> branch too, since it fixes building host-cdrkit for ISO9660
> generation with a host GCC 10.

+Peter in cc.

Regards,
Yann E. MORIN.

> v2: Make the patch a fully fledged commit with a sign-off and
> way more description than is necessary for a single "extern".
> 
>  ...ar-outfile-declaration-to-fix-build-.patch | 30 +++++++++++++++++++
>  1 file changed, 30 insertions(+)
>  create mode 100644 package/cdrkit/0003-Add-extern-to-char-outfile-declaration-to-fix-build-.patch
> 
> diff --git a/package/cdrkit/0003-Add-extern-to-char-outfile-declaration-to-fix-build-.patch b/package/cdrkit/0003-Add-extern-to-char-outfile-declaration-to-fix-build-.patch
> new file mode 100644
> index 0000000000..30f4c8d01d
> --- /dev/null
> +++ b/package/cdrkit/0003-Add-extern-to-char-outfile-declaration-to-fix-build-.patch
> @@ -0,0 +1,30 @@
> +From eabcc8a6e39dc3c28faee3e04aa56cc65a38d65a Mon Sep 17 00:00:00 2001
> +From: Urja Rannikko <urjaman@gmail.com>
> +Date: Sun, 19 Jul 2020 20:28:27 +0300
> +Subject: [PATCH] Add extern to char* outfile declaration to fix build with gcc
> + 10
> +
> +Without this linking fails with a rather long spew of
> +"multiple definition of `outfile'".
> +
> +Signed-off-by: Urja Rannikko <urjaman@gmail.com>
> +---
> + genisoimage/genisoimage.h | 2 +-
> + 1 file changed, 1 insertion(+), 1 deletion(-)
> +
> +diff --git a/genisoimage/genisoimage.h b/genisoimage/genisoimage.h
> +index bbedfb0..82c859b 100644
> +--- a/genisoimage/genisoimage.h
> ++++ b/genisoimage/genisoimage.h
> +@@ -376,7 +376,7 @@ extern int	use_fileversion;
> + extern int	split_SL_component;
> + extern int	split_SL_field;
> + extern char	*trans_tbl;
> +-char		*outfile;
> ++extern char	*outfile;
> + 
> + #define	JMAX		64	/* maximum Joliet file name length (spec) */
> + #define	JLONGMAX	103	/* out of spec Joliet file name length */
> +-- 
> +2.27.0
> +
> -- 
> 2.27.0
> 
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