[OE-core] [PATCH 1/2] ruby: configure mis-detects isnan/isinf on musl

[Khem Raj]

On Fri, Sep 27, 2019 at 6:55 AM André Draszik <git at andred.net> wrote:
>
> From: André Draszik <andre.draszik at jci.com>
>
> The configure script does not detect isnan/isinf as macros
> as is the case in musl.
>
> Help it by providing the correct result via
> CACHED_CONFIGUREVARS.
>
> Signed-off-by: André Draszik <andre.draszik at jci.com>
> ---
>  meta/recipes-devtools/ruby/ruby_2.5.5.bb | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/meta/recipes-devtools/ruby/ruby_2.5.5.bb b/meta/recipes-devtools/ruby/ruby_2.5.5.bb
> index 8ad59a7657..fdd3852a78 100644
> --- a/meta/recipes-devtools/ruby/ruby_2.5.5.bb
> +++ b/meta/recipes-devtools/ruby/ruby_2.5.5.bb
> @@ -32,6 +32,9 @@ EXTRA_OECONF = "\
>      --with-pkg-config=pkg-config \
>  "
>
> +# the configure script does not detect isnan/isinf as macros
> +CACHED_CONFIGUREVARS_libc-musl += "ac_cv_func_isnan=yes ac_cv_func_isinf=yes"
> +

Please use _append_libc-musl and drop +=

>  do_install() {
>      oe_runmake 'DESTDIR=${D}' install
>  }
> --
> 2.23.0.rc1
>
> --
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