[Buildroot] [PATCH v3, 1/1] bdwgc: add optional cplusplus support

[Baruch Siach <baruch@tkos.co.il>]

Hi Fabrice,

Fabrice Fontaine writes:
> Use CFLAGS_EXTRA to pass C and C++ flags in a single variable
>
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
> Changes v2 -> v3 (after review of Baruch Siach):
>  - Replace BDWGC_CFLAGS by BDWGC_CFLAGS_EXTRA
>
> Changes v1 -> v2 (after review of Arnout Vandecappelle and Baruch
> Siach):
>  - Use CFLAGS_EXTRA to pass C and C++ flags in a single variable instead
>    of using CFLAGS and CPPFLAGS
>
>  package/bdwgc/bdwgc.mk | 15 +++++++++++----
>  1 file changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/package/bdwgc/bdwgc.mk b/package/bdwgc/bdwgc.mk
> index 5603df8d9d..1c80f47b92 100644
> --- a/package/bdwgc/bdwgc.mk
> +++ b/package/bdwgc/bdwgc.mk
> @@ -19,17 +19,24 @@ HOST_BDWGC_DEPENDENCIES = host-libatomic_ops host-pkgconf
>  # solution.
>  BDWGC_AUTORECONF = YES
>  
> -BDWGC_CFLAGS = $(TARGET_CFLAGS)

This removes TARGET_CLAGS ...

>  ifeq ($(BR2_sparc),y)
> -BDWGC_CFLAGS += -DAO_NO_SPARC_V9
> +BDWGC_CFLAGS_EXTRA += -DAO_NO_SPARC_V9
>  endif
>  ifeq ($(BR2_STATIC_LIBS),y)
> -BDWGC_CFLAGS += -DGC_NO_DLOPEN
> +BDWGC_CFLAGS_EXTRA += -DGC_NO_DLOPEN
>  endif
>  
> +BDWGC_CONF_OPTS = CFLAGS_EXTRA="$(BDWGC_CFLAGS_EXTRA)"

... so you need to add it back here.

Nit: I'd move the BDWGC_CONF_OPTS assignment upper.

baruch

> +
>  # Ensure we use the system libatomic_ops, and not the internal one.
> -BDWGC_CONF_OPTS = --with-libatomic-ops=yes CFLAGS="$(BDWGC_CFLAGS)"
> +BDWGC_CONF_OPTS += --with-libatomic-ops=yes
>  HOST_BDWGC_CONF_OPTS = --with-libatomic-ops=yes
>  
> +ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
> +BDWGC_CONF_OPTS += --enable-cplusplus
> +else
> +BDWGC_CONF_OPTS += --disable-cplusplus
> +endif
> +
>  $(eval $(autotools-package))
>  $(eval $(host-autotools-package))

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
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