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Subject: Re: CR-LF handling behavior of SED changed recently - this breaks a lot of MinGW cross build scripts
To: cygwin@cygwin.com
References: <0F7D3B1B3C4B894D824F5B822E3E5A175B2636E4@IRSMSX103.ger.corp.intel.com> <a53282b6-d00c-aad8-76a6-26b4089a9623@redhat.com> <0F7D3B1B3C4B894D824F5B822E3E5A175B26CE47@IRSMSX102.ger.corp.intel.com> <59399CC5.60900@tlinx.org> <417f84ac-5d9f-dc50-e912-973e90b8a128@redhat.com> <0F7D3B1B3C4B894D824F5B822E3E5A175B26F278@IRSMSX102.ger.corp.intel.com> <34b26965-34c2-b5f0-a3f2-b2c3df344b08@gmail.com> <0F7D3B1B3C4B894D824F5B822E3E5A175B270518@IRSMSX102.ger.corp.intel.com> <5313de97-d9bd-d9c9-cb4a-254a3eadcf4a@redhat.com> <dfe98b04-27cf-af72-5e96-7a65460c1e53@gmail.com>
From: Eric Blake <eblake@redhat.com>
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Message-ID: <3100fec0-bed0-f2fd-fe3c-11e5580d80f0@redhat.com>
Date: Sat, 10 Jun 2017 21:30:26 -0500
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From: Eric Blake <eblake@redhat.com>
To: cygwin@cygwin.com
Message-ID: <3100fec0-bed0-f2fd-fe3c-11e5580d80f0@redhat.com>
Subject: Re: CR-LF handling behavior of SED changed recently - this breaks a
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References: <0F7D3B1B3C4B894D824F5B822E3E5A175B2636E4@IRSMSX103.ger.corp.intel.com>
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 <34b26965-34c2-b5f0-a3f2-b2c3df344b08@gmail.com>
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On 06/10/2017 08:48 AM, cyg Simple wrote:

>=20
> Uhm, 'wt' and 'wb' came from MS itself.

Not quite. fopen(,"wb") comes from POSIX.  "wb" is probably a microsoft
extension, but it is certainly not in POSIX nor in glibc.

>  GNU GCC was adapted to allow it

Huh? It's not whether the compiler allows it, but whether libc allows
it.  ALL libc that are remotely close to POSIX compliant support
fopen(,"wb"), but only Windows platforms (and NOT glibc) support
fopen(,"wt").

--=20
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org


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