[Buildroot] [PATCH] poco: fix m68k compile

[Baruch Siach]

Hi Waldemar,

On Thu, Aug 11, 2016 at 08:17:30PM +0200, Waldemar Brodkorb wrote:
> Add a patch from upstream to fix compile for m68k.

That is a little misleading. The patch is from the upstream double-conversion 
project, not poco. poco apparently bundles code from double-conversion, so at 
some point in the future poco may include this fix. But this patch is to 
really (poco) upstream yet.

> Fixes:
>   http://autobuild.buildroot.net/results/791917c1343f53e12f27b06cfd5e1d2e88078014/
>   http://autobuild.buildroot.net/results/349d4b49d65a652551c4de20233684bb4ffa5ae3/
> 
> Signed-off-by: Waldemar Brodkorb <wbx at openadk.org>
> ---
>  package/poco/0002-fix-m68k-double-conv-detect.patch | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>  create mode 100644 package/poco/0002-fix-m68k-double-conv-detect.patch
> 
> diff --git a/package/poco/0002-fix-m68k-double-conv-detect.patch b/package/poco/0002-fix-m68k-double-conv-detect.patch
> new file mode 100644
> index 0000000..465ee64
> --- /dev/null
> +++ b/package/poco/0002-fix-m68k-double-conv-detect.patch
> @@ -0,0 +1,19 @@
> +Fixes compile for m68k.
> +
> +From upstream double-conversion:
> +https://github.com/google/double-conversion/blob/master/double-conversion/utils.h#L81

Mentioning the double-conversion commit id for this patch (da111796231) would 
be nice. Besides, pointing to a specific line in a file on master branch is 
not future proof.

baruch

> +
> +Signed-off-by: Waldemar Brodkorb <wbx at openadk.org>
> +
> +diff -Nur poco-poco-1.7.2-release.orig/Foundation/src/utils.h poco-poco-1.7.2-release/Foundation/src/utils.h
> +--- poco-poco-1.7.2-release.orig/Foundation/src/utils.h	2016-03-19 08:19:35.000000000 +0100
> ++++ poco-poco-1.7.2-release/Foundation/src/utils.h	2016-08-11 02:55:02.827238119 +0200
> +@@ -63,6 +63,8 @@
> +     defined(__AARCH64EL__) || \
> +     defined(nios2) || defined(__nios2) || defined(__nios2__)
> + #define DOUBLE_CONVERSION_CORRECT_DOUBLE_OPERATIONS 1
> ++#elif defined(__mc68000__)
> ++#undef DOUBLE_CONVERSION_CORRECT_DOUBLE_OPERATIONS
> + #elif defined(_M_IX86) || defined(__i386__) || defined(__i386)
> + #if defined(_WIN32)
> + // Windows uses a 64bit wide floating point stack.

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