[Gimp-developer] GIMP can't find libmypaint-gegl

[Elle Stone]

I updated and tried to rebuild GIMP from git, with the following error:

checking for LIBMYPAINTGEGL... no
configure: error: Package requirements (libmypaint-gegl >= 1.1) were not 
met:


No package 'libmypaint-gegl' found

There isn't any libmypaint or libmypaint-gegl in Gentoo portage, and 
installing mypaint from Gentoo portage didn't fix the problem.


I compiled libmypaint from git (https://github.com/mypaint/libmypaint) 
in the prefix with babl/GEGL/GIMP, using the command:


scons prefix=$HOME/data/gimp/gimpdefault/install enable_gegl=true

which put the file "libmypaint-gegl.a" and "libmypaint.a" in the install 
prefix, in the lib folder.


But GIMP still says it can't find libmypaint-gegl. How do I fix this so 
GIMP can compile?


Elle
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Owen Cook]

> checking for LIBMYPAINTGEGL... no
> configure: error: Package requirements (libmypaint-gegl >= 1.1) were not 
> met:
> 
> No package 'libmypaint-gegl' found
> 
> There isn't any libmypaint or libmypaint-gegl in Gentoo portage, and 
> installing mypaint from Gentoo portage didn't fix the problem.
> 
> I compiled libmypaint from git (https://github.com/mypaint/libmypaint) 
> in the prefix with babl/GEGL/GIMP, using the command:
> 
> scons prefix=$HOME/data/gimp/gimpdefault/install enable_gegl=true
> 
> which put the file "libmypaint-gegl.a" and "libmypaint.a" in the install 
> prefix, in the lib folder.
> 
> But GIMP still says it can't find libmypaint-gegl. How do I fix this so 
> GIMP can compile?


After you built  Mypaint, you should have had a libmypaint-gegl.pc which needs 
to be included in your PKG_CONFIG path



Owen
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Elle Stone]

On 12/22/2015 08:41 PM, Owen Cook wrote:

On 12/22/2015 08:19 PM, Owen Cook wrote:

After you built  Mypaint, you should have had a libmypaint-gegl.pc which needs 
to be included in your PKG_CONFIG path




but here is the pc file which I think explains what is going on. As you can 
see, I built it in my Gimp directory, but suspect it can be built anywhere. Let 
PKG_CONFIG find it.


owen@LM-17 ~/Gimp-GIT/libmypaint $ cat libmypaint-gegl.pc
prefix=/home/owen/Gimp-GIT/libmypaint
exec_prefix=/home/owen/Gimp-GIT/libmypaint
libdir=/home/owen/Gimp-GIT/libmypaint/lib
includedir=/home/owen/Gimp-GIT/libmypaint/include

Name: libmypaint-gegl
Description: MyPaint brush engine library, with GEGL integration
Version: 1.1
Requires: gegl-0.3 libmypaint
Cflags: -I${includedir}/libmypaint-gegl
Libs: -L${libdir} -lmypaint-gegl



Hmm, there are already similar files for babl/GEGL/GIMP. So that file 
probably should be generated automatically when building/installing 
libmypaint, but there isn't one in the prefix. Did you create that file? 
or was it generated automatically?


Elle

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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Eneko Castresana]

Sorry, that was my mistake again. For some reason I was thinking of the
problem I had when the gimp binary wouldn't find the dynamic library. I did
have issues while building gimp and libmypaint but IIRC it was just me not
configuring the gegl option in libmypaint. I installed everything to
/usr/local, so aside from the shared library thing, I suppose every file
was at reach.

In short: I'm clueless and Owen is probably right. :)


2015-12-23 2:35 GMT+01:00 Elle Stone :

> [...]
> Hi Eneko, and thanks! for responding.
>
> I build GIMP from git in a prefix to avoid interfering with GIMP 2.8
> installed from Gentoo portage, and so I'm not sure that modifying
> /etc/ld.so.conf is the right thing to do.
>
> I have three different installations of GIMP in three different prefixes.
> So I want libmypaint in prefix1 to link with GEGL in prefix1, and GIMP in
> prefix1 to look for libmypaint-gegl also and only in prefix1, and so forth
> for the other two prefixes.
>
> Here's how I set up the first prefix:
>
> PREFIX=$HOME/data/gimp/gimpdefault/install
> export PATH=$PREFIX/bin:$PATH
> export LD_LIBRARY_PATH=$PREFIX/lib:$LD_LIBRARY_PATH
> export XDG_DATA_DIRS=$PREFIX/share:$XDG_DATA_DIRS
> export ACLOCAL_FLAGS="-I $PREFIX/share/aclocal"
> export PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig:$PKG_CONFIG_PATH
> export GIO_EXTRA_MODULES=/usr/lib/gio/modules
> export SRC_DIR=$HOME/data/gimp/gimpdefault/build
>
> Here's the command to build libmypaint:
>
> scons prefix=$HOME/data/gimp/gimpdefault/install use_sharedlib=yes
> enable_gegl=true
>
> libmypaint-gegl.so is located in
> /home/elle/data/gimp/gimpdefault/install/lib/, along with libmypaint.so and
> the two corresponding ".a" files.
>
> But GIMP still isn't finding libmypaint-gegl.so.
>
> Elle
>
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Elle Stone]

On 12/22/2015 08:19 PM, Owen Cook wrote:

After you built  Mypaint, you should have had a libmypaint-gegl.pc which needs 
to be included in your PKG_CONFIG path


Does this mean I need to install Mypaint in the prefix along with 
babl/GEGL/libmypaint/GIMP?


I cloned Mypaint from git, but there doesn't seem to be any guidance as 
to how to build mypaint. Is there a guide somewhere?


I'm sure Mypaint is a wonderful program. But why is this a hard 
dependency for GIMP?



Elle

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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Owen Cook]

> Sent: Wednesday, December 23, 2015 at 12:38 PM
> From: "Elle Stone" 
> To: gimp-developer-list@gnome.org
> Subject: Re: [Gimp-developer] GIMP can't find libmypaint-gegl
>
> On 12/22/2015 08:19 PM, Owen Cook wrote:
> > After you built  Mypaint, you should have had a libmypaint-gegl.pc which 
> > needs to be included in your PKG_CONFIG path
> 
> Does this mean I need to install Mypaint in the prefix along with 
> babl/GEGL/libmypaint/GIMP?
> 
> I cloned Mypaint from git, but there doesn't seem to be any guidance as 
> to how to build mypaint. Is there a guide somewhere?



I really don't know, but here is the pc file which I think explains what is 
going on. As you can see, I built it in my Gimp directory, but suspect it can 
be built anywhere. Let PKG_CONFIG find it.


owen@LM-17 ~/Gimp-GIT/libmypaint $ cat libmypaint-gegl.pc 
prefix=/home/owen/Gimp-GIT/libmypaint
exec_prefix=/home/owen/Gimp-GIT/libmypaint
libdir=/home/owen/Gimp-GIT/libmypaint/lib
includedir=/home/owen/Gimp-GIT/libmypaint/include

Name: libmypaint-gegl
Description: MyPaint brush engine library, with GEGL integration
Version: 1.1
Requires: gegl-0.3 libmypaint
Cflags: -I${includedir}/libmypaint-gegl
Libs: -L${libdir} -lmypaint-gegl




Owen 
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Thorsten Stettin]

Am 23.12.2015 um 00:26 schrieb Elle Stone:

I updated and tried to rebuild GIMP from git, with the following error:

checking for LIBMYPAINTGEGL... no
configure: error: Package requirements (libmypaint-gegl >= 1.1) were 
not met:


No package 'libmypaint-gegl' found

There isn't any libmypaint or libmypaint-gegl in Gentoo portage, and 
installing mypaint from Gentoo portage didn't fix the problem.


I compiled libmypaint from git (https://github.com/mypaint/libmypaint) 
in the prefix with babl/GEGL/GIMP, using the command:


scons prefix=$HOME/data/gimp/gimpdefault/install enable_gegl=true

which put the file "libmypaint-gegl.a" and "libmypaint.a" in the 
install prefix, in the lib folder.


But GIMP still says it can't find libmypaint-gegl. How do I fix this 
so GIMP can compile?
I'm just try to build current packages in my Ubuntu PPA. It takes some 
time.
I hope this helps. I added some dirty patches in order ti builld the 
whole stack.

Stay tuned. :-)

https://launchpad.net/~otto-kesselgulasch/+archive/ubuntu/gimp-edge/+packages


Elle
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--
Lao-Tse sagt: Nichtstun ist besser, als mit viel Mühe nichts zu schaffen.
Und er sagt auch: Ich habe drei Schätze, die ich hüte und hege.
Der eine ist die Liebe, der zweite ist die Genügsamkeit, der dritte ist die 
Demut.
Nur der Liebende ist mutig, nur der Genügsame ist großzügig, nur der Demütige 
ist fähig zu herrschen.


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Re: [Gimp-developer] May I try to correct this bug?

[Liam R. E. Quin]

On Mon, 2015-12-21 at 14:10 +0100, Eneko Castresana wrote:
> Hello,
> 
> I'd like to try to correct this bug:
> Bug 562564 - Impossible stroke a path with the clone tool (
> https://bugzilla.gnome.org/show_bug.cgi?id=562564 )

I can't imagine people objecting to a suitable patch...:-)

It's a feature request more than a bug I think - and in the UI you'd
have to have a clone source selected first, and there would need to be
clear messages to help people through the process.

Liam (ankh)

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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Elle Stone]

On 12/22/2015 06:46 PM, Eneko Castresana wrote:

Sorry, I meant to say "in case you didn't install to the standard
directories"; that needs to be done so that the shared libraries can be
found in non-standard dirs.

Cheers,
Eneko

2015-12-23 0:38 GMT+01:00 Eneko Castresana:


>Hello Ellen,
>
>I had exactly this problem today, and as a newcomer found it all extremely
>frustrating, but I manged to figure it out at last (you got way further
>than me by the beginning, BTW):
>
>add "use_sharedlib=yes" to scons
>
>And just in case you installed to /usr/local, remember to update
>/etc/ld.so.conf and use ldconfig
>
>Cheers,
>Eneko


Hi Eneko, and thanks! for responding.

I build GIMP from git in a prefix to avoid interfering with GIMP 2.8 
installed from Gentoo portage, and so I'm not sure that modifying 
/etc/ld.so.conf is the right thing to do.


I have three different installations of GIMP in three different 
prefixes. So I want libmypaint in prefix1 to link with GEGL in prefix1, 
and GIMP in prefix1 to look for libmypaint-gegl also and only in 
prefix1, and so forth for the other two prefixes.


Here's how I set up the first prefix:

PREFIX=$HOME/data/gimp/gimpdefault/install
export PATH=$PREFIX/bin:$PATH
export LD_LIBRARY_PATH=$PREFIX/lib:$LD_LIBRARY_PATH
export XDG_DATA_DIRS=$PREFIX/share:$XDG_DATA_DIRS
export ACLOCAL_FLAGS="-I $PREFIX/share/aclocal"
export PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig:$PKG_CONFIG_PATH
export GIO_EXTRA_MODULES=/usr/lib/gio/modules
export SRC_DIR=$HOME/data/gimp/gimpdefault/build

Here's the command to build libmypaint:

scons prefix=$HOME/data/gimp/gimpdefault/install use_sharedlib=yes 
enable_gegl=true


libmypaint-gegl.so is located in 
/home/elle/data/gimp/gimpdefault/install/lib/, along with libmypaint.so 
and the two corresponding ".a" files.


But GIMP still isn't finding libmypaint-gegl.so.

Elle
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Eneko Castresana]

Sorry, I meant to say "in case you didn't install to the standard
directories"; that needs to be done so that the shared libraries can be
found in non-standard dirs.

Cheers,
Eneko

2015-12-23 0:38 GMT+01:00 Eneko Castresana :

> Hello Ellen,
>
> I had exactly this problem today, and as a newcomer found it all extremely
> frustrating, but I manged to figure it out at last (you got way further
> than me by the beginning, BTW):
>
> add "use_sharedlib=yes" to scons
>
> And just in case you installed to /usr/local, remember to update
> /etc/ld.so.conf and use ldconfig
>
> Cheers,
> Eneko
>
> P.S: Hope I posted to the list now. Sorry.
>
> 2015-12-23 0:26 GMT+01:00 Elle Stone :
>
>> I updated and tried to rebuild GIMP from git, with the following error:
>>
>> checking for LIBMYPAINTGEGL... no
>> configure: error: Package requirements (libmypaint-gegl >= 1.1) were not
>> met:
>>
>> No package 'libmypaint-gegl' found
>>
>> There isn't any libmypaint or libmypaint-gegl in Gentoo portage, and
>> installing mypaint from Gentoo portage didn't fix the problem.
>>
>> I compiled libmypaint from git (https://github.com/mypaint/libmypaint)
>> in the prefix with babl/GEGL/GIMP, using the command:
>>
>> scons prefix=$HOME/data/gimp/gimpdefault/install enable_gegl=true
>>
>> which put the file "libmypaint-gegl.a" and "libmypaint.a" in the install
>> prefix, in the lib folder.
>>
>> But GIMP still says it can't find libmypaint-gegl. How do I fix this so
>> GIMP can compile?
>>
>> Elle
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>>
>
>
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Eneko Castresana]

Hello Ellen,

I had exactly this problem today, and as a newcomer found it all extremely
frustrating, but I manged to figure it out at last (you got way further
than me by the beginning, BTW):

add "use_sharedlib=yes" to scons

And just in case you installed to /usr/local, remember to update
/etc/ld.so.conf and use ldconfig

Cheers,
Eneko

P.S: Hope I posted to the list now. Sorry.

2015-12-23 0:26 GMT+01:00 Elle Stone :

> I updated and tried to rebuild GIMP from git, with the following error:
>
> checking for LIBMYPAINTGEGL... no
> configure: error: Package requirements (libmypaint-gegl >= 1.1) were not
> met:
>
> No package 'libmypaint-gegl' found
>
> There isn't any libmypaint or libmypaint-gegl in Gentoo portage, and
> installing mypaint from Gentoo portage didn't fix the problem.
>
> I compiled libmypaint from git (https://github.com/mypaint/libmypaint) in
> the prefix with babl/GEGL/GIMP, using the command:
>
> scons prefix=$HOME/data/gimp/gimpdefault/install enable_gegl=true
>
> which put the file "libmypaint-gegl.a" and "libmypaint.a" in the install
> prefix, in the lib folder.
>
> But GIMP still says it can't find libmypaint-gegl. How do I fix this so
> GIMP can compile?
>
> Elle
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Owen Cook]

> On 12/22/2015 08:41 PM, Owen Cook wrote:
> >> On 12/22/2015 08:19 PM, Owen Cook wrote:
> >>> After you built  Mypaint, you should have had a libmypaint-gegl.pc which 
> >>> needs to be included in your PKG_CONFIG path
> 
> >
> > but here is the pc file which I think explains what is going on. As you can 
> > see, I built it in my Gimp directory, but suspect it can be built anywhere. 
> > Let PKG_CONFIG find it.
> >
> >
> > owen@LM-17 ~/Gimp-GIT/libmypaint $ cat libmypaint-gegl.pc
> > prefix=/home/owen/Gimp-GIT/libmypaint
> > exec_prefix=/home/owen/Gimp-GIT/libmypaint
> > libdir=/home/owen/Gimp-GIT/libmypaint/lib
> > includedir=/home/owen/Gimp-GIT/libmypaint/include
> >
> > Name: libmypaint-gegl
> > Description: MyPaint brush engine library, with GEGL integration
> > Version: 1.1
> > Requires: gegl-0.3 libmypaint
> > Cflags: -I${includedir}/libmypaint-gegl
> > Libs: -L${libdir} -lmypaint-gegl
> >
> 
> Hmm, there are already similar files for babl/GEGL/GIMP. So that file 
> probably should be generated automatically when building/installing 
> libmypaint, but there isn't one in the prefix. Did you create that file? 
> or was it generated automatically?



I searched my history for libmypaint as well as otherthings found I did this;

a.  git clone https://github.com/mypaint/libmypaint.git
b.  I then read the README.md
c.  Had to install scons
d.  The last scons command was # scons prefix=/home/owen/Gimp-GIT 
enable_gegl=true
(but judging by the number of other attempts, I must have had some problem)
e.  That generated the libmypaint-gegl.pc
f.  then I exported /home/owen/Gimp-GIT/libmypaint to the PKG_CONFIG path
g.  Lastly I installed MyPaint from a debian package manager for the brushes
h.  rebuilt gimp, there was an entry to load mypaint brushes, but "it didn't 
work"


All that was some time ago and many iterations later I see I no longer build 
gimp with libmypaint.

In the README.md, there is an interesting line that says;

You can also build a minimal version of libmypaint directly into your 
application by including "libmypaint.c"

I never psyched that out, but would like to know how to do that.



Owen
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Re: [Gimp-developer] GIMP can't find libmypaint-gegl

[Michael Natterer]

On Tue, 2015-12-22 at 20:35 -0500, Elle Stone wrote:
> On 12/22/2015 06:46 PM, Eneko Castresana wrote:
> > Sorry, I meant to say "in case you didn't install to the standard
> > directories"; that needs to be done so that the shared libraries
> > can be
> > found in non-standard dirs.
> > 
> > Cheers,
> > Eneko
> > 
> > 2015-12-23 0:38 GMT+01:00 Eneko Castresana:
> > 
> > > > Hello Ellen,
> > > > 
> > > > I had exactly this problem today, and as a newcomer found it
> > > > all extremely
> > > > frustrating, but I manged to figure it out at last (you got way
> > > > further
> > > > than me by the beginning, BTW):
> > > > 
> > > > add "use_sharedlib=yes" to scons
> > > > 
> > > > And just in case you installed to /usr/local, remember to
> > > > update
> > > > /etc/ld.so.conf and use ldconfig
> > > > 
> > > > Cheers,
> > > > Eneko
> 
> Hi Eneko, and thanks! for responding.
> 
> I build GIMP from git in a prefix to avoid interfering with GIMP 2.8 
> installed from Gentoo portage, and so I'm not sure that modifying 
> /etc/ld.so.conf is the right thing to do.
> 
> I have three different installations of GIMP in three different 
> prefixes. So I want libmypaint in prefix1 to link with GEGL in
> prefix1, 
> and GIMP in prefix1 to look for libmypaint-gegl also and only in 
> prefix1, and so forth for the other two prefixes.
> 
> Here's how I set up the first prefix:
> 
> PREFIX=$HOME/data/gimp/gimpdefault/install
> export PATH=$PREFIX/bin:$PATH
> export LD_LIBRARY_PATH=$PREFIX/lib:$LD_LIBRARY_PATH
> export XDG_DATA_DIRS=$PREFIX/share:$XDG_DATA_DIRS
> export ACLOCAL_FLAGS="-I $PREFIX/share/aclocal"
> export PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig:$PKG_CONFIG_PATH
> export GIO_EXTRA_MODULES=/usr/lib/gio/modules
> export SRC_DIR=$HOME/data/gimp/gimpdefault/build
> 
> Here's the command to build libmypaint:
> 
> scons prefix=$HOME/data/gimp/gimpdefault/install use_sharedlib=yes 
> enable_gegl=true

Do you also pass prefix=foo when installing it?

scons prefix=foo install

--Mitch

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