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X-HELO:	drew.franken.de
Date:	Mon, 4 Sep 2017 11:02:20 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: putchar and putchar_unlocked have different scope ?
Message-ID:	<20170904090220.GA3532@calimero.vinschen.de>
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Hi Marco,

On Sep  2 12:55, Marco Atzeri wrote:
> Trying to build gcc-6.3.0-2 with its source package on
> cygwin  2.9.0-0.2
>=20
>=20
> x86_64-pc-cygwin-g++ -std=3Dgnu++98 -c   -g -DIN_GCC     -fno-exceptions
> -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing
> -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-attribute
> -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
> -Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H -DGENERATOR_FILE
> -fno-PIE -I. -Ibuild -I/cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.src/gcc-=
6.3.0-2.x86_64/src/gcc-6.3.0/gcc -I/cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-=
2.src/gcc-6.3.0-2.x86_64/src/gcc-6.3.0/gcc/build -I/cygdrive/e/cyg_pub/deve=
l/gcc/gcc-6.3.0-2.src/gcc-6.3.0-2.x86_64/src/gcc-6.3.0/gcc/../include
>=20
> -I/cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.src/gcc-6.3.0-2.x86_64/src/gc=
c-6.3.0/gcc/../libcpp/include
> \
>         -o build/genchecksum.o /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.=
src/gcc-6.3.0-2.x86_64/src/gcc-6.3.0/gcc/genchecksum.c
> echo "      return Relocate_Path (S0, S2);" >>tmp-sdefault.adb
> echo "   end Object_Dir_Default_Name;" >>tmp-sdefault.adb
> echo "   function Target_Name return String_Ptr is" >>tmp-sdefault.adb
> In file included from /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.src/gcc-6=
.3.0-2.x86_64/src/gcc-6.3.0/gcc/system.h:46:0,
>                  from /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.src/gcc-6=
.3.0-2.x86_64/src/gcc-6.3.0/gcc/gengenrtl.c:22:
> /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.src/gcc-6.3.0-2.x86_64/src/gcc-=
6.3.0/gcc/gengenrtl.c:
> In function =E2=80=98void genheader()=E2=80=99:
> /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.src/gcc-6.3.0-2.x86_64/src/gcc-=
6.3.0/gcc/system.h:87:22:
> error: =E2=80=98_putchar_unlocked=E2=80=99 was not declared in this scope
>  #  define putchar(C) putchar_unlocked (C)
>                       ^
> /cygdrive/e/cyg_pub/devel/gcc/gcc-6.3.0-2.src/gcc-6.3.0-2.x86_64/src/gcc-=
6.3.0/gcc/gengenrtl.c:298:3:
> note: in expansion of macro =E2=80=98putchar=E2=80=99
>    putchar ('\n');
>    ^~~~~~~

This is a bug in C++ handling introduced by a change in stdio.h.
I applied a fix and release another test release later today.


Thanks,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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