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Posted to dev@maven.apache.org by Arnaud Héritier <ah...@gmail.com> on 2016/01/27 11:02:47 UTC
Re: maven git commit: [MNG-5607] Don't use M2_HOME anymore in mvn
shell/batch file anymore
-1
See https://issues.apache.org/jira/browse/MNG-5607
Ok to introduce MVN_HOME with M2_HOME value as default when defined (and
then remove M2_HOME in Maven 4)
But replacing M2_HOME by MVN_HOME in 3.4 seems to be a risky change for our
ecosystem (IDE, CI servers, ...) and not only for the local user environment
WDYT ?
Cheers
On Wed, Jan 27, 2016 at 5:47 AM, <sc...@apache.org> wrote:
> Repository: maven
> Updated Branches:
> refs/heads/master 364df3233 -> d3b4fb0c1
>
>
> [MNG-5607] Don't use M2_HOME anymore in mvn shell/batch file anymore
>
> o Updated to rename M2_HOME to MVN_HOME.
>
>
> Project: http://git-wip-us.apache.org/repos/asf/maven/repo
> Commit: http://git-wip-us.apache.org/repos/asf/maven/commit/d3b4fb0c
> Tree: http://git-wip-us.apache.org/repos/asf/maven/tree/d3b4fb0c
> Diff: http://git-wip-us.apache.org/repos/asf/maven/diff/d3b4fb0c
>
> Branch: refs/heads/master
> Commit: d3b4fb0c1e525bb1122c7e832279f1ef6fbd6efe
> Parents: 364df32
> Author: Christian Schulte <sc...@apache.org>
> Authored: Wed Jan 27 05:46:49 2016 +0100
> Committer: Christian Schulte <sc...@apache.org>
> Committed: Wed Jan 27 05:46:49 2016 +0100
>
> ----------------------------------------------------------------------
> apache-maven/src/bin/mvn | 24 ++++++++++++------------
> apache-maven/src/bin/mvn.cmd | 14 +++++++-------
> 2 files changed, 19 insertions(+), 19 deletions(-)
> ----------------------------------------------------------------------
>
>
>
> http://git-wip-us.apache.org/repos/asf/maven/blob/d3b4fb0c/apache-maven/src/bin/mvn
> ----------------------------------------------------------------------
> diff --git a/apache-maven/src/bin/mvn b/apache-maven/src/bin/mvn
> index c878735..7a636cd 100755
> --- a/apache-maven/src/bin/mvn
> +++ b/apache-maven/src/bin/mvn
> @@ -109,18 +109,18 @@ done
>
> saveddir=`pwd`
>
> -M2_HOME=`dirname "$PRG"`/..
> +MVN_HOME=`dirname "$PRG"`/..
>
> # make it fully qualified
> -M2_HOME=`cd "$M2_HOME" && pwd`
> +MVN_HOME=`cd "$MVN_HOME" && pwd`
>
> cd "$saveddir"
> -# echo Using m2 at $M2_HOME
> +# echo Using mvn at $MVN_HOME
>
> # For Cygwin, ensure paths are in UNIX format before anything is touched
> if $cygwin ; then
> - [ -n "$M2_HOME" ] &&
> - M2_HOME=`cygpath --unix "$M2_HOME"`
> + [ -n "$MVN_HOME" ] &&
> + MVN_HOME=`cygpath --unix "$MVN_HOME"`
> [ -n "$JAVA_HOME" ] &&
> JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
> [ -n "$CLASSPATH" ] &&
> @@ -129,8 +129,8 @@ fi
>
> # For Migwn, ensure paths are in UNIX format before anything is touched
> if $mingw ; then
> - [ -n "$M2_HOME" ] &&
> - M2_HOME="`(cd "$M2_HOME"; pwd)`"
> + [ -n "$MVN_HOME" ] &&
> + MVN_HOME="`(cd "$MVN_HOME"; pwd)`"
> [ -n "$JAVA_HOME" ] &&
> JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
> # TODO classpath?
> @@ -180,12 +180,12 @@ if [ -z "$JAVA_HOME" ] ; then
> fi
>
> CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
> -CLASSWORLDS_JAR=`echo "${M2_HOME}"/boot/plexus-classworlds-*.jar`
> +CLASSWORLDS_JAR=`echo "${MVN_HOME}"/boot/plexus-classworlds-*.jar`
>
> # For Cygwin, switch paths to Windows format before running java
> if $cygwin; then
> - [ -n "$M2_HOME" ] &&
> - M2_HOME=`cygpath --path --windows "$M2_HOME"`
> + [ -n "$MVN_HOME" ] &&
> + MVN_HOME=`cygpath --path --windows "$MVN_HOME"`
> [ -n "$JAVA_HOME" ] &&
> JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
> [ -n "$CLASSPATH" ] &&
> @@ -239,6 +239,6 @@ exec "$JAVACMD" \
> $MAVEN_OPTS \
> $MAVEN_DEBUG_OPTS \
> -classpath "${CLASSWORLDS_JAR}" \
> - "-Dclassworlds.conf=${M2_HOME}/bin/m2.conf" \
> - "-Dmaven.home=${M2_HOME}"
> "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
> + "-Dclassworlds.conf=${MVN_HOME}/bin/m2.conf" \
> + "-Dmaven.home=${MVN_HOME}"
> "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
> ${CLASSWORLDS_LAUNCHER} "$@"
>
>
> http://git-wip-us.apache.org/repos/asf/maven/blob/d3b4fb0c/apache-maven/src/bin/mvn.cmd
> ----------------------------------------------------------------------
> diff --git a/apache-maven/src/bin/mvn.cmd b/apache-maven/src/bin/mvn.cmd
> index 7635bfd..51ca499 100644
> --- a/apache-maven/src/bin/mvn.cmd
> +++ b/apache-maven/src/bin/mvn.cmd
> @@ -76,19 +76,19 @@ echo.
> goto error
>
> :chkMHome
> -SET "M2_HOME=%~dp0.."
> -if not "%M2_HOME%"=="" goto valMHome
> +SET "MVN_HOME=%~dp0.."
> +if not "%MVN_HOME%"=="" goto valMHome
> goto error
>
> :valMHome
>
> :stripMHome
> -if not "_%M2_HOME:~-1%"=="_\" goto checkMCmd
> -set "M2_HOME=%M2_HOME:~0,-1%"
> +if not "_%MVN_HOME:~-1%"=="_\" goto checkMCmd
> +set "MVN_HOME=%MVN_HOME:~0,-1%"
> goto stripMHome
>
> :checkMCmd
> -if exist "%M2_HOME%\bin\mvn.cmd" goto init
> +if exist "%MVN_HOME%\bin\mvn.cmd" goto init
>
> goto error
> @REM ==== END VALIDATION ====
> @@ -136,11 +136,11 @@ for /F "usebackq delims=" %%a in
> ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do s
>
> SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
>
> -for %%i in ("%M2_HOME%"\boot\plexus-classworlds-*) do set
> CLASSWORLDS_JAR="%%i"
> +for %%i in ("%MVN_HOME%"\boot\plexus-classworlds-*) do set
> CLASSWORLDS_JAR="%%i"
>
> set CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
>
> -%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS%
> -classpath %CLASSWORLDS_JAR% "-Dclassworlds.conf=%M2_HOME%\bin\m2.conf"
> "-Dmaven.home=%M2_HOME%"
> "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%"
> %CLASSWORLDS_LAUNCHER% %MAVEN_CMD_LINE_ARGS%
> +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS%
> -classpath %CLASSWORLDS_JAR% "-Dclassworlds.conf=%MVN_HOME%\bin\m2.conf"
> "-Dmaven.home=%MVN_HOME%"
> "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%"
> %CLASSWORLDS_LAUNCHER% %MAVEN_CMD_LINE_ARGS%
> if ERRORLEVEL 1 goto error
> goto end
>
>
>
--
-----
Arnaud Héritier
http://aheritier.net
Mail/GTalk: aheritier AT gmail DOT com
Twitter/Skype : aheritier
Re: maven git commit: [MNG-5607] Don't use M2_HOME anymore in mvn shell/batch file anymore
Posted by Jason van Zyl <ja...@takari.io>.
Yes, I agree.
-1
Don’t maven M2_HOME to MVN_HOME during 3.x and for Maven 4.x we can probably just get rid of the shell variable all together.
> On Jan 27, 2016, at 5:02 AM, Arnaud Héritier <ah...@gmail.com> wrote:
>
> -1
> See https://issues.apache.org/jira/browse/MNG-5607
> Ok to introduce MVN_HOME with M2_HOME value as default when defined (and
> then remove M2_HOME in Maven 4)
> But replacing M2_HOME by MVN_HOME in 3.4 seems to be a risky change for our
> ecosystem (IDE, CI servers, ...) and not only for the local user environment
>
> WDYT ?
>
> Cheers
>
>
>
> On Wed, Jan 27, 2016 at 5:47 AM, <sc...@apache.org> wrote:
>
>> Repository: maven
>> Updated Branches:
>> refs/heads/master 364df3233 -> d3b4fb0c1
>>
>>
>> [MNG-5607] Don't use M2_HOME anymore in mvn shell/batch file anymore
>>
>> o Updated to rename M2_HOME to MVN_HOME.
>>
>>
>> Project: http://git-wip-us.apache.org/repos/asf/maven/repo
>> Commit: http://git-wip-us.apache.org/repos/asf/maven/commit/d3b4fb0c
>> Tree: http://git-wip-us.apache.org/repos/asf/maven/tree/d3b4fb0c
>> Diff: http://git-wip-us.apache.org/repos/asf/maven/diff/d3b4fb0c
>>
>> Branch: refs/heads/master
>> Commit: d3b4fb0c1e525bb1122c7e832279f1ef6fbd6efe
>> Parents: 364df32
>> Author: Christian Schulte <sc...@apache.org>
>> Authored: Wed Jan 27 05:46:49 2016 +0100
>> Committer: Christian Schulte <sc...@apache.org>
>> Committed: Wed Jan 27 05:46:49 2016 +0100
>>
>> ----------------------------------------------------------------------
>> apache-maven/src/bin/mvn | 24 ++++++++++++------------
>> apache-maven/src/bin/mvn.cmd | 14 +++++++-------
>> 2 files changed, 19 insertions(+), 19 deletions(-)
>> ----------------------------------------------------------------------
>>
>>
>>
>> http://git-wip-us.apache.org/repos/asf/maven/blob/d3b4fb0c/apache-maven/src/bin/mvn
>> ----------------------------------------------------------------------
>> diff --git a/apache-maven/src/bin/mvn b/apache-maven/src/bin/mvn
>> index c878735..7a636cd 100755
>> --- a/apache-maven/src/bin/mvn
>> +++ b/apache-maven/src/bin/mvn
>> @@ -109,18 +109,18 @@ done
>>
>> saveddir=`pwd`
>>
>> -M2_HOME=`dirname "$PRG"`/..
>> +MVN_HOME=`dirname "$PRG"`/..
>>
>> # make it fully qualified
>> -M2_HOME=`cd "$M2_HOME" && pwd`
>> +MVN_HOME=`cd "$MVN_HOME" && pwd`
>>
>> cd "$saveddir"
>> -# echo Using m2 at $M2_HOME
>> +# echo Using mvn at $MVN_HOME
>>
>> # For Cygwin, ensure paths are in UNIX format before anything is touched
>> if $cygwin ; then
>> - [ -n "$M2_HOME" ] &&
>> - M2_HOME=`cygpath --unix "$M2_HOME"`
>> + [ -n "$MVN_HOME" ] &&
>> + MVN_HOME=`cygpath --unix "$MVN_HOME"`
>> [ -n "$JAVA_HOME" ] &&
>> JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
>> [ -n "$CLASSPATH" ] &&
>> @@ -129,8 +129,8 @@ fi
>>
>> # For Migwn, ensure paths are in UNIX format before anything is touched
>> if $mingw ; then
>> - [ -n "$M2_HOME" ] &&
>> - M2_HOME="`(cd "$M2_HOME"; pwd)`"
>> + [ -n "$MVN_HOME" ] &&
>> + MVN_HOME="`(cd "$MVN_HOME"; pwd)`"
>> [ -n "$JAVA_HOME" ] &&
>> JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
>> # TODO classpath?
>> @@ -180,12 +180,12 @@ if [ -z "$JAVA_HOME" ] ; then
>> fi
>>
>> CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
>> -CLASSWORLDS_JAR=`echo "${M2_HOME}"/boot/plexus-classworlds-*.jar`
>> +CLASSWORLDS_JAR=`echo "${MVN_HOME}"/boot/plexus-classworlds-*.jar`
>>
>> # For Cygwin, switch paths to Windows format before running java
>> if $cygwin; then
>> - [ -n "$M2_HOME" ] &&
>> - M2_HOME=`cygpath --path --windows "$M2_HOME"`
>> + [ -n "$MVN_HOME" ] &&
>> + MVN_HOME=`cygpath --path --windows "$MVN_HOME"`
>> [ -n "$JAVA_HOME" ] &&
>> JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
>> [ -n "$CLASSPATH" ] &&
>> @@ -239,6 +239,6 @@ exec "$JAVACMD" \
>> $MAVEN_OPTS \
>> $MAVEN_DEBUG_OPTS \
>> -classpath "${CLASSWORLDS_JAR}" \
>> - "-Dclassworlds.conf=${M2_HOME}/bin/m2.conf" \
>> - "-Dmaven.home=${M2_HOME}"
>> "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
>> + "-Dclassworlds.conf=${MVN_HOME}/bin/m2.conf" \
>> + "-Dmaven.home=${MVN_HOME}"
>> "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
>> ${CLASSWORLDS_LAUNCHER} "$@"
>>
>>
>> http://git-wip-us.apache.org/repos/asf/maven/blob/d3b4fb0c/apache-maven/src/bin/mvn.cmd
>> ----------------------------------------------------------------------
>> diff --git a/apache-maven/src/bin/mvn.cmd b/apache-maven/src/bin/mvn.cmd
>> index 7635bfd..51ca499 100644
>> --- a/apache-maven/src/bin/mvn.cmd
>> +++ b/apache-maven/src/bin/mvn.cmd
>> @@ -76,19 +76,19 @@ echo.
>> goto error
>>
>> :chkMHome
>> -SET "M2_HOME=%~dp0.."
>> -if not "%M2_HOME%"=="" goto valMHome
>> +SET "MVN_HOME=%~dp0.."
>> +if not "%MVN_HOME%"=="" goto valMHome
>> goto error
>>
>> :valMHome
>>
>> :stripMHome
>> -if not "_%M2_HOME:~-1%"=="_\" goto checkMCmd
>> -set "M2_HOME=%M2_HOME:~0,-1%"
>> +if not "_%MVN_HOME:~-1%"=="_\" goto checkMCmd
>> +set "MVN_HOME=%MVN_HOME:~0,-1%"
>> goto stripMHome
>>
>> :checkMCmd
>> -if exist "%M2_HOME%\bin\mvn.cmd" goto init
>> +if exist "%MVN_HOME%\bin\mvn.cmd" goto init
>>
>> goto error
>> @REM ==== END VALIDATION ====
>> @@ -136,11 +136,11 @@ for /F "usebackq delims=" %%a in
>> ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do s
>>
>> SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
>>
>> -for %%i in ("%M2_HOME%"\boot\plexus-classworlds-*) do set
>> CLASSWORLDS_JAR="%%i"
>> +for %%i in ("%MVN_HOME%"\boot\plexus-classworlds-*) do set
>> CLASSWORLDS_JAR="%%i"
>>
>> set CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
>>
>> -%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS%
>> -classpath %CLASSWORLDS_JAR% "-Dclassworlds.conf=%M2_HOME%\bin\m2.conf"
>> "-Dmaven.home=%M2_HOME%"
>> "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%"
>> %CLASSWORLDS_LAUNCHER% %MAVEN_CMD_LINE_ARGS%
>> +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS%
>> -classpath %CLASSWORLDS_JAR% "-Dclassworlds.conf=%MVN_HOME%\bin\m2.conf"
>> "-Dmaven.home=%MVN_HOME%"
>> "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%"
>> %CLASSWORLDS_LAUNCHER% %MAVEN_CMD_LINE_ARGS%
>> if ERRORLEVEL 1 goto error
>> goto end
>>
>>
>>
>
>
> --
> -----
> Arnaud Héritier
> http://aheritier.net
> Mail/GTalk: aheritier AT gmail DOT com
> Twitter/Skype : aheritier
Thanks,
Jason
----------------------------------------------------------
Jason van Zyl
Founder, Takari and Apache Maven
http://twitter.com/jvanzyl
http://twitter.com/takari_io
---------------------------------------------------------
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Re: maven git commit: [MNG-5607] Don't use M2_HOME anymore in mvn shell/batch file anymore
Posted by Jason van Zyl <ja...@takari.io>.
I don’t use the variable myself, I have no way to know who does. But if we remove it just remove it and don’t replace it with MVN_HOME. To me that’s even more confusing.
I prefer it not there, but I don’t want to break anyone in a minor version. I don’t feel that strongly about it. I’ll retract my -1, you get the support it :-)
> On Jan 27, 2016, at 6:23 AM, Christian Schulte <cs...@schulte.it> wrote:
>
> Am 27.01.2016 um 11:02 schrieb Arnaud Héritier:
>> -1
>> See https://issues.apache.org/jira/browse/MNG-5607
>> Ok to introduce MVN_HOME with M2_HOME value as default when defined (and
>> then remove M2_HOME in Maven 4)
>> But replacing M2_HOME by MVN_HOME in 3.4 seems to be a risky change for our
>> ecosystem (IDE, CI servers, ...) and not only for the local user environment
>>
>> WDYT ?
>>
>> Cheers
>>
>
> The first commit removes support for M2_HOME in 3.4 completely. The second commit only renames a variable used in the script. M2_HOME is just not needed and is even confusing. People relying on M2_HOME should just setup theire PATH properly, IMHO. That's what most of them do anyway. You see
>
> export PATH=$M2_HOME/bin:$PATH
>
> almost everywhere. I am pretty sure there are a lot of people who do not even notice that setting M2_HOME to something not matching theire PATH is not what they want. Having a 'mvn' script in my PATH and having that script use a M2_HOME variable to launch something not in my PATH is flawed. I thought that was the reason for the request to remove that variable. No big deal reverting those commits, of course.
>
> So +1 for removing that variable completely in 3.4 or whatever version is appropriate for such a change.
>
> Regards,
> --
> Christian
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
> For additional commands, e-mail: dev-help@maven.apache.org
>
Thanks,
Jason
----------------------------------------------------------
Jason van Zyl
Founder, Takari and Apache Maven
http://twitter.com/jvanzyl
http://twitter.com/takari_io
---------------------------------------------------------
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
For additional commands, e-mail: dev-help@maven.apache.org
Re: maven git commit: [MNG-5607] Don't use M2_HOME anymore in mvn
shell/batch file anymore
Posted by Baptiste Mathus <ml...@batmat.net>.
+1 to simply remove the variable.
That's what I've been doing and advising for years.
Settings M2_HOME only highers the risk to get to weird issues for newcomers
with NoClassDefFoundError where actually M2_HOME points to a different
maven root that the binary in the PATH.
2016-01-27 11:23 GMT+00:00 Christian Schulte <cs...@schulte.it>:
> Am 27.01.2016 um 11:02 schrieb Arnaud Héritier:
>
>> -1
>> See https://issues.apache.org/jira/browse/MNG-5607
>> Ok to introduce MVN_HOME with M2_HOME value as default when defined (and
>> then remove M2_HOME in Maven 4)
>> But replacing M2_HOME by MVN_HOME in 3.4 seems to be a risky change for
>> our
>> ecosystem (IDE, CI servers, ...) and not only for the local user
>> environment
>>
>> WDYT ?
>>
>> Cheers
>>
>>
> The first commit removes support for M2_HOME in 3.4 completely. The second
> commit only renames a variable used in the script. M2_HOME is just not
> needed and is even confusing. People relying on M2_HOME should just setup
> theire PATH properly, IMHO. That's what most of them do anyway. You see
>
> export PATH=$M2_HOME/bin:$PATH
>
> almost everywhere. I am pretty sure there are a lot of people who do not
> even notice that setting M2_HOME to something not matching theire PATH is
> not what they want. Having a 'mvn' script in my PATH and having that script
> use a M2_HOME variable to launch something not in my PATH is flawed. I
> thought that was the reason for the request to remove that variable. No big
> deal reverting those commits, of course.
>
> So +1 for removing that variable completely in 3.4 or whatever version is
> appropriate for such a change.
>
> Regards,
> --
> Christian
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
> For additional commands, e-mail: dev-help@maven.apache.org
>
>
Re: maven git commit: [MNG-5607] Don't use M2_HOME anymore in mvn
shell/batch file anymore
Posted by Christian Schulte <cs...@schulte.it>.
Am 27.01.2016 um 11:02 schrieb Arnaud Héritier:
> -1
> See https://issues.apache.org/jira/browse/MNG-5607
> Ok to introduce MVN_HOME with M2_HOME value as default when defined (and
> then remove M2_HOME in Maven 4)
> But replacing M2_HOME by MVN_HOME in 3.4 seems to be a risky change for our
> ecosystem (IDE, CI servers, ...) and not only for the local user environment
>
> WDYT ?
>
> Cheers
>
The first commit removes support for M2_HOME in 3.4 completely. The
second commit only renames a variable used in the script. M2_HOME is
just not needed and is even confusing. People relying on M2_HOME should
just setup theire PATH properly, IMHO. That's what most of them do
anyway. You see
export PATH=$M2_HOME/bin:$PATH
almost everywhere. I am pretty sure there are a lot of people who do not
even notice that setting M2_HOME to something not matching theire PATH
is not what they want. Having a 'mvn' script in my PATH and having that
script use a M2_HOME variable to launch something not in my PATH is
flawed. I thought that was the reason for the request to remove that
variable. No big deal reverting those commits, of course.
So +1 for removing that variable completely in 3.4 or whatever version
is appropriate for such a change.
Regards,
--
Christian
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