From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id EF4D4385841A; Sat, 25 Feb 2023 14:15:12 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EF4D4385841A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1677334512;
	bh=7/r0eWLoIYlHP5HIOSr8Pdm15fWIz3jqYOmSAgXyAmE=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=a3qwUlD9eQGobxgPGVtWdwS1dFu0+isXLzhMdcMVYojmkY0B5ZuRgcNqBR0VVJOTu
	 30VRnRDLnvYutcp3Qe8oD2NKbVTbMqWQsYK95CK7NzIzxLVvAqnUKTnwc5P0E1s+ON
	 ruwT5WPowOEgahFGaQHa1CoOYDfgKFPHuYKf/DeQ=
From: "costas.argyris at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/108865] gcc on Windows fails with Unicode path to source
 file
Date: Sat, 25 Feb 2023 14:15:11 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: driver
X-Bugzilla-Version: unknown
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: costas.argyris at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-108865-4-WBnM9Ceqwa@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-108865-4@http.gcc.gnu.org/bugzilla/>
References: <bug-108865-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108865

--- Comment #4 from Costas Argyris <costas.argyris at gmail dot com> ---
Using the manifest approach described in:

https://learn.microsoft.com/en-us/windows/apps/design/globalizing/use-utf8-=
code-page

it is possible to convert a full existing gcc + mingw-w64 toolchain (all
executables) to use UTF-8 as their active code page.

The proper solution would be to integrate the UTF-8 manifest into gcc's own
build process.    Until that happens, and to enable existing installations =
to
work with Unicode paths, this is the procedure to convert an existing gcc
(mingw-w64) installation on Windows to use the UTF-8 code page.

Requirements:

1) See above link to check if your version of Windows supports this.
2) You must have the manifest tool mt.exe installed and know its location.
3) Go to a temp dir and create a 'utf8_acp_setting.manifest' file with this
content:

<?xml version=3D"1.0" encoding=3D"UTF-8" standalone=3D"yes"?>
<assembly manifestVersion=3D"1.0" xmlns=3D"urn:schemas-microsoft-com:asm.v1=
">
  <application>
    <windowsSettings>
      <activeCodePage
xmlns=3D"http://schemas.microsoft.com/SMI/2019/WindowsSettings">UTF-8</acti=
veCodePage>
    </windowsSettings>
  </application>
</assembly>

Assume that the current installation is at C:\mingw64.    We are going to
create a copy of it in C:\mingw64-UTF8 and apply the UTF-8 manifest in every
executable using mt.exe.

Add the folder of mt.exe to the path, for example

set PATH=3DC:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64;%PAT=
H%

('where mt' should find it)

Copy the entire C:\mingw64 directory to C:\mingw64-UTF8 from the UI or using

robocopy C:\mingw64 C:\mingw64-UTF8 /e

Cd into the folder where utf8_acp_setting.manifest is and run:

for /F %f in ('dir /B /S C:\mingw64-UTF8\*.exe') do mt "-outputresource:%f;=
1"
-manifest "utf8_acp_setting.manifest"

After this, the toolchain under C:\mingw64-UTF8 should be able to compile t=
he
file that was previously failing.

Make sure that you add C:\mingw64-UTF8\bin to the path instead of
C:\mingw64\bin

set PATH=3DC:\mingw64-UTF8\bin;%PATH%

and check with 'where gcc' - it should return the one under C:\mingw64-UTF8=
\bin

Now compile the file in the Unicode path that was previously failing:

C:\Users\cargyris\temp>gcc =EF=B9=8F\src.c

C:\Users\cargyris\temp>echo %errorlevel%
0

no errors this time.=