[OE-core] [PATCH] libxcrypt: add -std=gnu99 to BUILD_CPPFLAGS

[Khem Raj]

On 4/9/18 12:51 AM, Martin Jansa wrote:
> * add it to allow older distributions e.g. Ubuntu 14.04 with gcc 4.8
>   to build this, otherwise it fails with:
>   ../git/gen-des-tables.c: In function 'write_table_u8':
>   ../git/gen-des-tables.c:307:3: error: 'for' loop initial declarations are only allowed in C99 mode
>      for (size_t i = 0; i < m; i++)
>      ^
> 
> Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>
> ---
>  meta/recipes-core/libxcrypt/libxcrypt_4.0.0.bb | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/meta/recipes-core/libxcrypt/libxcrypt_4.0.0.bb b/meta/recipes-core/libxcrypt/libxcrypt_4.0.0.bb
> index b1982c1991..a1be4be7ef 100644
> --- a/meta/recipes-core/libxcrypt/libxcrypt_4.0.0.bb
> +++ b/meta/recipes-core/libxcrypt/libxcrypt_4.0.0.bb
> @@ -20,7 +20,7 @@ FILES_${PN} = "${libdir}/libcrypt*.so.* ${libdir}/libcrypt-*.so ${libdir}/libowc
>  
>  S = "${WORKDIR}/git"
>  
> -BUILD_CPPFLAGS = "-I${STAGING_INCDIR_NATIVE}"
> +BUILD_CPPFLAGS = "-I${STAGING_INCDIR_NATIVE} -std=gnu99"

This might change behaviour with gcc5+ e.g. where default is gnu11
in anycase, I think if we could limit this to native version can limit
the impact.

>  TARGET_CPPFLAGS = "-I${STAGING_DIR_TARGET}${includedir}"
>  
>  python () {
>