From: Stuart Henderson <stu@spacehopper.org>
Subject: Re: python: set CXX to prevent sccache detection in meson via
To: Klemens Nanni <kn@openbsd.org>, ports <ports@openbsd.org>, Kurt Mosiejczuk <kmos@openbsd.org>
Date: Sat, 05 Sep 2026 19:47:20 +0100

ok.

-- 
  Sent from a phone, apologies for poor formatting.

On 5 September 2026 16:52:09 Klemens Nanni <kn@openbsd.org> wrote:

> 05.09.2026 12:19, Stuart Henderson пишет:
>> On 2026/09/04 20:00, Klemens Nanni wrote:
>>> 04.09.2026 22:32, Stuart Henderson пишет:
>>>> I think it would be better to set it all the time, like MODSIMPLE_configure 
>>>> does in bsd.port.mk.
>>>
>>> Like so?
>>
>> I meant in python.port.mk, I'd be pretty happy to do that without wider
>> testing in advance. Changing it in bsd.port.mk I'm a lot more twitchy
>> about..
>
> Sure, let's do the bare minium then wrt. compiler/tool detection:
>
> Index: python.port.mk
> ===================================================================
> RCS file: /cvs/ports/lang/python/3/python.port.mk,v
> diff -u -p -r1.28 python.port.mk
> --- python.port.mk	19 Jun 2026 13:49:04 -0000	1.28
> +++ python.port.mk	5 Sep 2026 15:46:12 -0000
> @@ -223,7 +223,7 @@ MODPY_DISTUTILS_BUILD ?=	build --build-b
> MODPY_DISTUTILS_INSTALL ?=	install --prefix=${TRUEPREFIX} \
> 				--root=${DESTDIR}
>
> -MAKE_ENV +=		CC=${CC}
> +MAKE_ENV +=		CC=${CC} CXX=${CXX}
> CONFIGURE_ENV +=	PYTHON="${MODPY_BIN}"
> .if ${CONFIGURE_STYLE:Mgnu}
> CONFIGURE_ENV +=	ac_cv_prog_PYTHON="${MODPY_BIN}" \
>
>
> OK?
>
> For CXXFLAGS it'd take a closer look when time allows.
>
>>
>>
>>> I also just noticed -O3 in matplotlib build logs and passing CXXFLAGS
>>> make meson append them, so default -O2 is used again and DEBUG gets honoured.
>>>
>>> bsd.port.mk already adds CFLAGS to MAKE_ENV outside MODSIMPLE_configure,
>>> but not CXXFLAGS.
>>>
>>> How about adding all just there, dropping C* things in python.port.mk?
>>>
>>> 'make -V MAKE_ENV' in matplotlib shows them all without duplicates from
>>> other places.
>>>
>>>
>>> Index: lang/python/3/python.port.mk
>>> ===================================================================
>>> RCS file: /cvs/ports/lang/python/3/python.port.mk,v
>>> diff -u -p -r1.28 python.port.mk
>>> --- lang/python/3/python.port.mk	19 Jun 2026 13:49:04 -0000	1.28
>>> +++ lang/python/3/python.port.mk	4 Sep 2026 19:54:50 -0000
>>> @@ -223,7 +223,6 @@ MODPY_DISTUTILS_BUILD ?=	build --build-b
>>>  MODPY_DISTUTILS_INSTALL ?=	install --prefix=${TRUEPREFIX} \
>>>  				--root=${DESTDIR}
>>>
>>> -MAKE_ENV +=		CC=${CC}
>>>  CONFIGURE_ENV +=	PYTHON="${MODPY_BIN}"
>>>  .if ${CONFIGURE_STYLE:Mgnu}
>>>  CONFIGURE_ENV +=	ac_cv_prog_PYTHON="${MODPY_BIN}" \
>>> Index: infrastructure/mk/bsd.port.mk
>>> ===================================================================
>>> RCS file: /cvs/ports/infrastructure/mk/bsd.port.mk,v
>>> diff -u -p -r1.1651 bsd.port.mk
>>> --- infrastructure/mk/bsd.port.mk	18 May 2026 23:38:23 -0000	1.1651
>>> +++ infrastructure/mk/bsd.port.mk	4 Sep 2026 19:58:38 -0000
>>> @@ -754,7 +759,8 @@ PORTHOME ?= /${PKGNAME}_writes_to_HOME
>>>
>>>  MAKE_ENV += PATH='${PORTPATH}' PREFIX='${PREFIX}' \
>>>  	LOCALBASE='${LOCALBASE}' X11BASE='${X11BASE}' \
>>> -	CFLAGS='${CFLAGS:C/ *$//}' \
>>> +	CC=${CC} CFLAGS=${CFLAGS:Q} \
>>> +	CXX=${CXX} CXXFLAGS=${CXXFLAGS:Q} \
>>
>> have you looked into why it currently strips trailing spaces from
>> CFLAGS? could it cause some subtle problem if it stops doing that?
>
> No, the original commit from 2004 just repeats the diff in words
> without explaining anything.
>
> I'm inclined to use proper mechanisms like :Q and deal with fallout
> when, that is if it should arise.
>
>>
>>>  	TRUEPREFIX='${PREFIX}' ${DESTDIRNAME}='' \
>>>  	HOME='${PORTHOME}'
>>>
>>>
>>