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Date:      Sun, 01 Mar 2015 20:25:00 +0100
From:      John Marino <freebsd.contact@marino.st>
To:        Antoine Brodin <antoine@FreeBSD.org>
Cc:        "svn-ports-head@freebsd.org" <svn-ports-head@freebsd.org>, "svn-ports-all@freebsd.org" <svn-ports-all@freebsd.org>, "ports-committers@freebsd.org" <ports-committers@freebsd.org>
Subject:   Re: svn commit: r380211 - head/security/libgpg-error
Message-ID:  <54F3678C.90706@marino.st>
In-Reply-To: <CAALwa8mk8-eGWmg6QYcFqkt%2BSR687YZqq0tTcegf%2BEwJbX8kxg@mail.gmail.com>
References:  <201503011652.t21GqiLh056130@svn.freebsd.org>	<CAALwa8mhQ7bX5TeaUa7Wrw7fy5TV0ZxZqOS_Zjs3tAC-MUf5LQ@mail.gmail.com>	<54F3458E.8090401@marino.st>	<CAALwa8nnv3a7GpOqbe%2BBatjmeW-_mba2iaSok3iOWrP_EMZOnw@mail.gmail.com>	<54F34DC3.8020902@marino.st>	<CAALwa8n6hR8aYw7Z=b-JGUyG3u4_HLvNgJDZT%2BXgqkCnjoHZnA@mail.gmail.com>	<54F35AAD.5010200@marino.st> <CAALwa8mk8-eGWmg6QYcFqkt%2BSR687YZqq0tTcegf%2BEwJbX8kxg@mail.gmail.com>

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On 3/1/2015 19:46, Antoine Brodin wrote:
> On Sun, Mar 1, 2015 at 6:30 PM, John Marino <freebsd.contact@marino.st> wrote:
>> On 3/1/2015 19:24, Antoine Brodin wrote:
>>> On Sun, Mar 1, 2015 at 5:34 PM, John Marino <freebsd.contact@marino.st> wrote:
>>> Thanks.
>>> Why are you trying to use tradcpp?   even on freebsd 9.3 or even 8.4,
>>> lots of freebsd headers do not work with tradcpp  (Integer constant
>>> too large,  Invalid macro parameter name args...).
>>
>> The heart of the problem is that cpp on gcc5+ behaves differently in
>> some cases from previous versions of gcc (usually on line terminations).
>>  Some people are doing sketchy things with cpp and on gcc5, the
>> resulting source file is corrupt.
>>
>> using tradcpp is a work-around to fixing the real problem. There wasn't
>> a lot of fallout, maybe 5 ports or so, but libgpg-error was a big one.
> 
> 
> Can you try using cpp5 -P instead of cpp5?
> See http://www.gnu.org/software/gcc/gcc-5/porting_to.html
> 

It works.  If I just add "CPP= cpp -P" to the stock port makefile, then
it builds fine.  I check "cpp -P" on FreeBSD 10, it seems clang cpp just
ignores the -P even though it's not a listed option.

I guess if we want to use this, the fix would be something like
"CPP+= -P"

Would all the FreeBSD releases accept "CPP+= -P" ?

John





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