[PATCHv2] package/at: fix glibcism

at needs __isleap() which is in (e)glibc and uClibc, but not in musl.

Add a patch (from Open Embedded) that removes use of the macros, and
directly expands the corresponding code in lieu of the macro calls.

Fixes:
    http://autobuild.buildroot.org/results/6f2/6f25e80e8aedec91323ef9b67576b550d7abee60/
    http://autobuild.buildroot.org/results/da5/da5bb779f3077b079203fcbdb2533dd790963cd4/
    http://autobuild.buildroot.org/results/8a6/8a6ce608c6f46d08ed77049f796e98e6e10a1709/
    ...

Thanks to Jörg for pointing to the OE patch! :-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Jörg Krause <joerg.krause@embedded.rocks>
---
 .../at/0008-remove-glibc-__isleap-assumption.patch | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 package/at/0008-remove-glibc-__isleap-assumption.patch

Hi Yann,

On Di, 2015-05-05 at 19:57 +0200, Yann E. MORIN wrote:
> at needs __isleap() which is in (e)glibc and uClibc, but not in musl.
> 
> Add a patch (from Open Embedded) that removes use of the macros, and
> directly expands the corresponding code in lieu of the macro calls.
> 
> Fixes:
>     http://autobuild.buildroot.org/results/6f2/6f25e80e8aedec91323ef9
> b67576b550d7abee60/
>     http://autobuild.buildroot.org/results/da5/da5bb779f3077b079203fc
> bdb2533dd790963cd4/
>     http://autobuild.buildroot.org/results/8a6/8a6ce608c6f46d08ed7704
> 9f796e98e6e10a1709/
>     ...
> 
> Thanks to Jörg for pointing to the OE patch! :-)
> 
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Cc: Jörg Krause <joerg.krause@embedded.rocks>
> ---
>  .../at/0008-remove-glibc-__isleap-assumption.patch | 59 
> ++++++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 package/at/0008-remove-glibc-__isleap
> -assumption.patch
> 
> diff --git a/package/at/0008-remove-glibc-__isleap-assumption.patch 
> b/package/at/0008-remove-glibc-__isleap-assumption.patch
> new file mode 100644
> index 0000000..2152249
> --- /dev/null
> +++ b/package/at/0008-remove-glibc-__isleap-assumption.patch
> @@ -0,0 +1,59 @@
> +From 7f811d9c4ebc9444e613e251c31d6bf537a24dc1 Mon Sep 17 00:00:00 
> 2001
> +From: Khem Raj <raj.khem@gmail.com>
> +Date: Mon, 13 Apr 2015 16:35:30 -0700
> +Subject: [PATCH] remove glibc assumption
> +
> +glibc time.h header has an undocumented __isleap macro
> +that we are using anf musl is missing it.
> +Since it is undocumented & does not appear
> +on any other libc, stop using it and just define the macro in
> +locally  instead.
> +
> +Upstream-Status: Pending
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +[patch from: http://patchwork.openembedded.org/patch/91893/ ]
> +Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> +
> +---
> + parsetime.y | 11 +++++++----
> + 1 file changed, 7 insertions(+), 4 deletions(-)
> +
> +diff --git a/parsetime.y b/parsetime.y
> +index 7005e88..324e6d3 100644
> +--- a/parsetime.y
> ++++ b/parsetime.y
> +@@ -8,6 +8,9 @@
> + 
> + #define YYDEBUG 1
> + 
> ++#define is_leap_year(y) \
> ++    ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
> ++
> + struct tm exectm;
> + static int isgmt;
> + static int yearspec;
> +@@ -217,8 +220,8 @@ date            : month_name day_number
> +                              mnum == 12) && dnum > 31)
> +                         || ((mnum ==  4 || mnum ==  6 || mnum 
> ==  9 ||
> +                              mnum == 11) && dnum > 30)
> +-                        || (mnum ==  2 && dnum > 29 && 
>  __isleap(ynum+1900))
> +-                        || (mnum ==  2 && dnum > 28 && 
> !__isleap(ynum+1900))
> ++                        || (mnum ==  2 && dnum > 29 && 
>  is_leap_year(ynum+1900))
> ++                        || (mnum ==  2 && dnum > 28 && 
> !is_leap_year(ynum+1900))
> +                        )
> +                     {
> +                         yyerror("Error in day of month");
> +@@ -261,8 +264,8 @@ date            : month_name day_number
> +                              mnum == 12) && dnum > 31)
> +                         || ((mnum ==  4 || mnum ==  6 || mnum 
> ==  9 ||
> +                              mnum == 11) && dnum > 30)
> +-                        || (mnum ==  2 && dnum > 29 && 
>  __isleap(ynum+1900))
> +-                        || (mnum ==  2 && dnum > 28 && 
> !__isleap(ynum+1900))
> ++                        || (mnum ==  2 && dnum > 29 && 
>  is_leap_year(ynum+1900))
> ++                        || (mnum ==  2 && dnum > 28 && 
> !is_leap_year(ynum+1900))
> +                        )
> +                     {
> +                         yyerror("Error in day of month");
> +-- 
> +2.1.4

Builds without errors for me using Buildroot internal musl toolchain.

Tested-by: Jörg Krause <joerg.krause@embedded.rocks>

Dear Yann E. MORIN,

On Tue,  5 May 2015 19:57:48 +0200, Yann E. MORIN wrote:
> at needs __isleap() which is in (e)glibc and uClibc, but not in musl.
> 
> Add a patch (from Open Embedded) that removes use of the macros, and
> directly expands the corresponding code in lieu of the macro calls.
> 
> Fixes:
>     http://autobuild.buildroot.org/results/6f2/6f25e80e8aedec91323ef9b67576b550d7abee60/
>     http://autobuild.buildroot.org/results/da5/da5bb779f3077b079203fcbdb2533dd790963cd4/
>     http://autobuild.buildroot.org/results/8a6/8a6ce608c6f46d08ed77049f796e98e6e10a1709/
>     ...
> 
> Thanks to Jörg for pointing to the OE patch! :-)
> 
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Cc: Jörg Krause <joerg.krause@embedded.rocks>
> ---
>  .../at/0008-remove-glibc-__isleap-assumption.patch | 59 ++++++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 package/at/0008-remove-glibc-__isleap-assumption.patch

Applied, thanks.

Thomas