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From: Junio C Hamano <gitster@pobox•com>
To: Sebastian Schuberth <sschuberth@gmail•com>
Cc: Jeff King <peff@peff•net>, John Keeping <john@keeping•me.uk>,
	Jonathan Nieder <jrnieder@gmail•com>,
	Git Mailing List <git@vger•kernel.org>,
	Karsten Blees <karsten.blees@gmail•com>
Subject: Re: [PATCH] git-compat-util: Avoid strcasecmp() being inlined
Date: Fri, 13 Sep 2013 15:06:42 -0700	[thread overview]
Message-ID: <xmqqli30idfx.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <CAHGBnuM=QqLxPNNZmoL1jG+oAm2y6o=AuBtkH+FRwZ_8ahGC+w@mail.gmail.com> (Sebastian Schuberth's message of "Fri, 13 Sep 2013 22:04:47 +0200")

Sebastian Schuberth <sschuberth@gmail•com> writes:

> On Fri, Sep 13, 2013 at 10:01 PM, Junio C Hamano <gitster@pobox•com> wrote:
>
>>> I don't like the idea of introducing a compat/mingw/string.h because
>>> of two reasons: You would have to add a conditional to include that
>>> string.h instead of the system one anyway,
>>
>> With -Icompat/mingw passed to the compiler, which is a bog-standard
>> technique we already use to supply headers the system forgot to
>> supply or override buggy headers the system is shipped with, you do
>> not have to change any "#include <string.h>".
>>
>> Am I mistaken?
>
> Ah, that would work I guess, but you'd still need the include_next.

You can explicitly include the system header from your compatibility
layer, i.e. 

	=== compat/mingw/string.h ===

	#define __NO_INLINE__

	#ifdef SYSTEM_STRING_H_HEADER
        #include SYSTEM_STRING_H_HEADER
        #else
        #include_next <string.h>
	#endif

and then in config.mak.uname, do something like this:

	ifneq (,$(findstring MINGW,$(uname_S)))
	ifndef SYSTEM_STRING_H_HEADER
	SYSTEM_STRING_H_HEADER = "C:\\llvm\include\string.h"
        endif

	COMPAT_CFLAGS += -DSYSTEM_STRING_H_HEADER=$(SYSTEM_STRING_H_HEADER)
	endif

People who have the system header file at different paths can
further override SYSTEM_STRING_H_HEADER in their config.mak.

That would help compilers targetting mingw that do not support
"#include_next" without spreading the damage to other people's
systems, I think.

  reply	other threads:[~2013-09-13 22:06 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-11 16:06 [PATCH] git-compat-util: Avoid strcasecmp() being inlined Sebastian Schuberth
2013-09-11 18:29 ` Jonathan Nieder
2013-09-11 19:16   ` Jeff King
2013-09-19  6:04     ` Piotr Krukowiecki
     [not found]       ` <CAPc5daVt4Q9twub5KyOQqZHx9CwOnkuwA97sXV44fF2j1e5HVg@mail.gmail.com>
2013-09-19  9:47         ` Piotr Krukowiecki
2013-09-19 21:16           ` Jeff King
2013-09-19 22:03             ` Junio C Hamano
2013-09-19 22:05               ` Jeff King
2013-09-19 22:40                 ` Junio C Hamano
2013-09-20  3:18                   ` Jeff King
2013-09-20  6:21             ` Piotr Krukowiecki
2013-09-24  5:32               ` Jeff King
2013-09-11 19:59   ` Sebastian Schuberth
2013-09-11 21:41     ` Jeff King
2013-09-12  9:36       ` Sebastian Schuberth
2013-09-12 10:14         ` John Keeping
2013-09-12 15:37           ` Junio C Hamano
2013-09-12 18:20             ` Jeff King
2013-09-12 18:35               ` Junio C Hamano
2013-09-12 18:38                 ` Jonathan Nieder
2013-09-12 19:51                   ` Sebastian Schuberth
2013-09-12 20:08                     ` Junio C Hamano
2013-09-13 12:33                       ` Sebastian Schuberth
2013-09-13 14:26                         ` Junio C Hamano
2013-09-13 19:34                           ` Sebastian Schuberth
2013-09-12 21:36                     ` Jonathan Nieder
2013-09-12 19:00                 ` Jeff King
2013-09-12 19:46               ` Sebastian Schuberth
2013-09-12 20:22                 ` Jeff King
2013-09-12 20:29                   ` Junio C Hamano
2013-09-13 12:47                     ` Sebastian Schuberth
2013-09-13 14:37                       ` Junio C Hamano
2013-09-13 19:53                         ` Sebastian Schuberth
2013-09-13 19:56                           ` Linus Torvalds
2013-09-13 20:03                             ` Sebastian Schuberth
2013-09-13 20:01                           ` Junio C Hamano
2013-09-13 20:04                             ` Sebastian Schuberth
2013-09-13 22:06                               ` Junio C Hamano [this message]
2013-09-13 22:35                                 ` Junio C Hamano
2013-09-15 12:44                                 ` Sebastian Schuberth
2013-09-17 16:17                                   ` Junio C Hamano
2013-09-17 19:16                                     ` Sebastian Schuberth
2013-09-17 21:46                                       ` Junio C Hamano
2013-09-18  9:43                                         ` Sebastian Schuberth
2013-09-18 12:19                                           ` Linus Torvalds
2013-09-12 21:31                 ` Jonathan Nieder
2013-09-19 13:47                   ` Sebastian Schuberth
2013-09-11 18:39 ` Junio C Hamano

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