[Buildroot] [PATCH 1/1] bdwgc: add optional cplusplus support
Baruch Siach
baruch at tkos.co.il
Tue Oct 23 20:20:07 UTC 2018
Hi Arnout, Fabrice,
Arnout Vandecappelle writes:
> On 10/23/18 8:39 PM, Fabrice Fontaine wrote:
>> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
>> ---
>> package/bdwgc/bdwgc.mk | 14 +++++++++++++-
>> 1 file changed, 13 insertions(+), 1 deletion(-)
>>
>> diff --git a/package/bdwgc/bdwgc.mk b/package/bdwgc/bdwgc.mk
>> index 5603df8d9d..a0d7689d31 100644
>> --- a/package/bdwgc/bdwgc.mk
>> +++ b/package/bdwgc/bdwgc.mk
>> @@ -22,14 +22,26 @@ BDWGC_AUTORECONF = YES
>> BDWGC_CFLAGS = $(TARGET_CFLAGS)
>> ifeq ($(BR2_sparc),y)
>> BDWGC_CFLAGS += -DAO_NO_SPARC_V9
>> +BDWGC_CPPFLAGS += -DAO_NO_SPARC_V9
>> endif
>> ifeq ($(BR2_STATIC_LIBS),y)
>> BDWGC_CFLAGS += -DGC_NO_DLOPEN
>> +BDWGC_CPPFLAGS += -DGC_NO_DLOPEN
>> endif
>>
>> +BDWGC_CONF_OPTS = \
>> + CFLAGS="$(BDWGC_CFLAGS)" \
>> + CPPFLAGS="$(BDWGC_CPPFLAGS)"
>
> Is it useful to specify that twice? Isn't it enough to specify only CPPFLAGS?
> Maybe at the time this CFLAGS override was added (9d181bb93eb1, 3.5 years ago,
> by Baruch) CPPFLAGS didn't work but now it does? Or maybe it was an
> accident/convenience? The commit message doesn't say anything.
It seems like CFLAGS_EXTRA can be used to add flags to both CFLAGS and
CPPFLAGS. See configure.ac.
baruch
>> +
>> # Ensure we use the system libatomic_ops, and not the internal one.
>> -BDWGC_CONF_OPTS = --with-libatomic-ops=yes CFLAGS="$(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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