[PR PATCH] blender: enable alembic support

[PR PATCH] blender: enable alembic support

[mvf]

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There is a new pull request by mvf against master on the void-packages repository

https://github.com/mvf/void-packages pr/blender-alembic
https://github.com/void-linux/void-packages/pull/23498

blender: enable alembic support
Smoke-tested (export and import simple mesh) on x86_64. Fixes #23112

A patch file from https://github.com/void-linux/void-packages/pull/23498.patch is attached

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From 405052f11a3ac6225d4f83df47d85eee172c29fd Mon Sep 17 00:00:00 2001
From: Matthias von Faber <mvf@gmx.eu>
Date: Thu, 9 Jul 2020 19:34:54 +0200
Subject: [PATCH 1/2] alembic: build without TR1

Workaround for old compilers, incompatible with Blender
---
 common/shlibs            |  2 +-
 srcpkgs/alembic/template | 13 ++++++++++---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/common/shlibs b/common/shlibs
index 86ee9fcb734..7e0041531c1 100644
--- a/common/shlibs
+++ b/common/shlibs
@@ -3947,7 +3947,7 @@ libOpenImageDenoise.so.0 openimagedenoise-1.2.0_1
 libcbang0.so cbang-1.3.3_1
 libblosc.so.1 c-blosc-1.17.1_1
 libopenvdb.so.7.0 openvdb-7.0.0_1
-libAlembic.so.1.7 alembic-1.7.12_1
+libAlembic.so.1.7 alembic-1.7.12_2
 libmodsecurity.so.3 modsecurity-3.0.4_1
 libraven.so.0 budgie-desktop-10.5.1_1
 libbudgie-private.so.0 budgie-desktop-10.5.1_1
diff --git a/srcpkgs/alembic/template b/srcpkgs/alembic/template
index 89c51cb461f..b04fbcbfa91 100644
--- a/srcpkgs/alembic/template
+++ b/srcpkgs/alembic/template
@@ -1,11 +1,10 @@
 # Template file for 'alembic'
 pkgname=alembic
 version=1.7.12
-revision=1
+revision=2
 build_style=cmake
-configure_args="-DALEMBIC_LIB_USES_TR1=1"
 hostmakedepends="pkg-config"
-makedepends="zlib-devel ilmbase-devel libatomic-devel"
+makedepends="zlib-devel ilmbase-devel"
 short_desc="Open framework for storing and sharing scene data"
 maintainer="Orphaned <orphan@voidlinux.org>"
 license="BSD-3-Clause, MIT"
@@ -22,6 +21,14 @@ if [ -z "$CROSS_BUILD" ]; then
 	makedepends+=" hdf5-devel"
 fi
 
+if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
+	makedepends+=" libatomic-devel"
+
+	post_patch() {
+		printf '\ntarget_link_libraries(Alembic PRIVATE atomic)\n' >> lib/Alembic/CMakeLists.txt
+	}
+fi
+
 post_install() {
 	vlicense LICENSE.txt
 }

From 101487eb3f7d538286d41b2f153b3ddb76a7c00c Mon Sep 17 00:00:00 2001
From: Matthias von Faber <mvf@gmx.eu>
Date: Thu, 9 Jul 2020 19:35:11 +0200
Subject: [PATCH 2/2] blender: enable alembic support

---
 srcpkgs/blender/template | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/srcpkgs/blender/template b/srcpkgs/blender/template
index 754af3f0c47..9d87347732f 100644
--- a/srcpkgs/blender/template
+++ b/srcpkgs/blender/template
@@ -1,7 +1,7 @@
 # Template file for 'blender'
 pkgname=blender
 version=2.83.0
-revision=1
+revision=2
 build_style="cmake"
 makedepends="
  libgomp-devel libpng-devel tiff-devel python3-devel glu-devel
@@ -9,7 +9,7 @@ makedepends="
  libsamplerate-devel ffmpeg-devel fftw-devel boost-devel pcre-devel llvm
  libopenexr-devel libopenjpeg2-devel libXi-devel openimageio-devel
  opencolorio-devel opencollada-devel python3-numpy libXrender-devel
- OpenSubdiv-devel tbb-devel libxml2-devel openvdb-devel"
+ OpenSubdiv-devel tbb-devel libxml2-devel openvdb-devel alembic-devel"
 depends="desktop-file-utils hicolor-icon-theme"
 short_desc="3D graphics creation suite"
 maintainer="Enno Boland <gottox@voidlinux.org>"
@@ -40,6 +40,7 @@ configure_args="
 -DWITH_OPENCOLLADA=ON
 -DWITH_SYSTEM_GLEW=ON
 -DWITH_OPENVDB=ON
+-DWITH_ALEMBIC=ON
 -DWITH_BUILDINFO=OFF
 -DPYTHON_VERSION=$py3_ver
 -DPYTHON_LIBPATH=/usr/lib

Re: blender: enable alembic support

[fosslinux]

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New comment by fosslinux on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656403544

Comment:
I think the TR1 in alembic would be better as a build-option.

Re: blender: enable alembic support

[q66]

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New comment by q66 on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656425864

Comment:
what's up with that tr1 change

Re: blender: enable alembic support

[q66]

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New comment by q66 on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656425864

Comment:
what's up with that tr1 change

without tr1, atomic shouldn't be necessary at all

why disable it though

Re: [PR PATCH] [Updated] blender: enable alembic support

[mvf]

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There is an updated pull request by mvf against master on the void-packages repository

https://github.com/mvf/void-packages pr/blender-alembic
https://github.com/void-linux/void-packages/pull/23498

blender: enable alembic support
Smoke-tested (export and import simple mesh) on x86_64. Fixes #23112

A patch file from https://github.com/void-linux/void-packages/pull/23498.patch is attached

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From f76bf7cfb723ff2d9b71e0a6e70241e81dac9aa7 Mon Sep 17 00:00:00 2001
From: Matthias von Faber <mvf@gmx.eu>
Date: Thu, 9 Jul 2020 19:34:54 +0200
Subject: [PATCH 1/2] alembic: build without TR1

Workaround for old compilers, incompatible with Blender
---
 common/shlibs            |  2 +-
 srcpkgs/alembic/template | 13 ++++++++++---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/common/shlibs b/common/shlibs
index 86ee9fcb734..7e0041531c1 100644
--- a/common/shlibs
+++ b/common/shlibs
@@ -3947,7 +3947,7 @@ libOpenImageDenoise.so.0 openimagedenoise-1.2.0_1
 libcbang0.so cbang-1.3.3_1
 libblosc.so.1 c-blosc-1.17.1_1
 libopenvdb.so.7.0 openvdb-7.0.0_1
-libAlembic.so.1.7 alembic-1.7.12_1
+libAlembic.so.1.7 alembic-1.7.12_2
 libmodsecurity.so.3 modsecurity-3.0.4_1
 libraven.so.0 budgie-desktop-10.5.1_1
 libbudgie-private.so.0 budgie-desktop-10.5.1_1
diff --git a/srcpkgs/alembic/template b/srcpkgs/alembic/template
index 89c51cb461f..b04fbcbfa91 100644
--- a/srcpkgs/alembic/template
+++ b/srcpkgs/alembic/template
@@ -1,11 +1,10 @@
 # Template file for 'alembic'
 pkgname=alembic
 version=1.7.12
-revision=1
+revision=2
 build_style=cmake
-configure_args="-DALEMBIC_LIB_USES_TR1=1"
 hostmakedepends="pkg-config"
-makedepends="zlib-devel ilmbase-devel libatomic-devel"
+makedepends="zlib-devel ilmbase-devel"
 short_desc="Open framework for storing and sharing scene data"
 maintainer="Orphaned <orphan@voidlinux.org>"
 license="BSD-3-Clause, MIT"
@@ -22,6 +21,14 @@ if [ -z "$CROSS_BUILD" ]; then
 	makedepends+=" hdf5-devel"
 fi
 
+if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
+	makedepends+=" libatomic-devel"
+
+	post_patch() {
+		printf '\ntarget_link_libraries(Alembic PRIVATE atomic)\n' >> lib/Alembic/CMakeLists.txt
+	}
+fi
+
 post_install() {
 	vlicense LICENSE.txt
 }

From 3ead4f59407203a87b0a3638757444350db307ff Mon Sep 17 00:00:00 2001
From: Matthias von Faber <mvf@gmx.eu>
Date: Thu, 9 Jul 2020 19:35:11 +0200
Subject: [PATCH 2/2] blender: update to 2.83.2, enable alembic support

---
 srcpkgs/blender/template | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/srcpkgs/blender/template b/srcpkgs/blender/template
index 754af3f0c47..6da9c2bd8c7 100644
--- a/srcpkgs/blender/template
+++ b/srcpkgs/blender/template
@@ -1,6 +1,6 @@
 # Template file for 'blender'
 pkgname=blender
-version=2.83.0
+version=2.83.2
 revision=1
 build_style="cmake"
 makedepends="
@@ -9,14 +9,14 @@ makedepends="
  libsamplerate-devel ffmpeg-devel fftw-devel boost-devel pcre-devel llvm
  libopenexr-devel libopenjpeg2-devel libXi-devel openimageio-devel
  opencolorio-devel opencollada-devel python3-numpy libXrender-devel
- OpenSubdiv-devel tbb-devel libxml2-devel openvdb-devel"
+ OpenSubdiv-devel tbb-devel libxml2-devel openvdb-devel alembic-devel"
 depends="desktop-file-utils hicolor-icon-theme"
 short_desc="3D graphics creation suite"
 maintainer="Enno Boland <gottox@voidlinux.org>"
 license="GPL-2.0-or-later"
 homepage="http://www.blender.org"
 distfiles="http://download.blender.org/source/${pkgname}-${version}.tar.xz"
-checksum=14e2bc85e076b12ae94438ff3c1dd417eba642840ed32d7c979724a93aa93f1f
+checksum=c18b70349df96bdd1fcec75f61ab6f17cbebd406ddcc8e6ba442773b734c4e22
 patch_args="-Np1"
 
 python_version=3
@@ -40,6 +40,7 @@ configure_args="
 -DWITH_OPENCOLLADA=ON
 -DWITH_SYSTEM_GLEW=ON
 -DWITH_OPENVDB=ON
+-DWITH_ALEMBIC=ON
 -DWITH_BUILDINFO=OFF
 -DPYTHON_VERSION=$py3_ver
 -DPYTHON_LIBPATH=/usr/lib

Re: blender: enable alembic support

[mvf]

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New comment by mvf on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656507808

Comment:
**TL;DR**
- the TR1 flavor of `alembic` is useless
- `libatomic` is required on `armv6l*`

**Prose**

> what's up with that tr1 change

TR1 is an obsolete non-standard C++ extension that has been effectively superseded by C++11. `alembic`'s TR1 build option is merely a fallback for people stuck on GCC < 4.8. Enabling it changes `alembic`'s interfaces, making it useless on modern systems. That's also why a build option makes no sense. From the README:
```
Some examples of OPTIONS you may want or need to use include:
[...]
-DALEMBIC_LIB_USES_TR1=ON or -DALEMBIC_LIB_USES_BOOST=ON if you do not have
a C++11 capable compiler specify one of these to use TR1, or boost as
a dependency of the Alembic library.
```
My guess is that the original `alembic` packager wasn't a C++ person and thought enabling TR1 was a neat way to get it to link without patching. From `lib/Alembic/CMakeLists.txt`:
```cmake
# link in atomic if we are using tr1 and the compiler is new enough
# to want  __atomic_compare_exchange_n
IF ( ${ALEMBIC_LIB_USES_TR1} AND CMAKE_COMPILER_IS_GNUCXX AND
    CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.8 )
    TARGET_LINK_LIBRARIES( Alembic atomic )
ENDIF()
```
> without tr1, atomic shouldn't be necessary at all

`armv6l*` disagrees:
```
/usr/lib/gcc/arm-linux-gnueabihf/9.3.0/../../../../arm-linux-gnueabihf/bin/ld: ../../libAlembic.so.1.7.12: undefined reference to `__atomic_fetch_or_8'
/usr/lib/gcc/arm-linux-gnueabihf/9.3.0/../../../../arm-linux-gnueabihf/bin/ld: ../../libAlembic.so.1.7.12: undefined reference to `__atomic_compare_exchange_8'
/usr/lib/gcc/arm-linux-gnueabihf/9.3.0/../../../../arm-linux-gnueabihf/bin/ld: ../../libAlembic.so.1.7.12: undefined reference to `__atomic_load_8'
/usr/lib/gcc/arm-linux-gnueabihf/9.3.0/../../../../arm-linux-gnueabihf/bin/ld: ../../libAlembic.so.1.7.12: undefined reference to `__atomic_store_8'
```

Re: blender: update to 2.83.2, enable alembic support

[mvf]

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New comment by mvf on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656524827

Comment:
Guess I didn't really explain the "useless" part. It means: Recent applications don't compile against the TR1 flavor of `alembic`: https://github.com/void-linux/void-packages/issues/23112#issue-642559341

Re: blender: update to 2.83.2, enable alembic support

[fosslinux]

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New comment by fosslinux on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656615883

Comment:
Well, this is the most well-thought out answer to a question I have ever given.

I get it now, thanks, agree with the changes in that case.

Re: blender: update to 2.83.2, enable alembic support

[fosslinux]

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New comment by fosslinux on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656615883

Comment:
Well, this is the most well-thought out answer to something I have put forward I have seen that i can think of. :)

I get it now, thanks, agree with the changes in that case.

Re: blender: update to 2.83.2, enable alembic support

[q66]

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New comment by q66 on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656665494

Comment:
that's strange, i only see atomic ever used if TR1 is on https://github.com/alembic/alembic/search?q=atomic&unscoped_q=atomic

but if that's the case, leave that in place, yeah - it'll be necessary for 32-bit powerpc and mips in the same way

Re: blender: update to 2.83.2, enable alembic support

[mvf]

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New comment by mvf on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656750681

Comment:
Atomics are always used. It won't even compile without. From [lib/Alembic/AbcCoreOgawa/StreamManager.cpp](https://github.com/alembic/alembic/blob/HEAD/lib/Alembic/AbcCoreOgawa/StreamManager.cpp):
```c++
// C++11 std::atomics version
#if !defined( ALEMBIC_LIB_USES_TR1 ) && __cplusplus >= 201103L
#define COMPARE_EXCHANGE( V, COMP, EXCH ) V.compare_exchange_weak( COMP, EXCH, std::memory_order_seq_cst, std::memory_order_seq_cst )
...
// gcc 4.8 and above not using C++11
#elif defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 8
#define COMPARE_EXCHANGE( V, COMP, EXCH ) __atomic_compare_exchange_n( &V, &COMP, EXCH, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST )
// gcc 4.1 and above not using C++11
#elif defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 1
#define COMPARE_EXCHANGE( V, COMP, EXCH ) __sync_bool_compare_and_swap( &V, COMP, EXCH )
#else
#error Please contact alembic-discuss@googlegroups.com for support.
#endif
```

Re: blender: update to 2.83.2, enable alembic support

[q66]

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New comment by q66 on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-656805414

Comment:
silly me, it uses `!` (and intrinsics as a fallback)

yes, lgtm

Re: [PR PATCH] [Updated] blender: update to 2.83.2, enable alembic support

[mvf]

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There is an updated pull request by mvf against master on the void-packages repository

https://github.com/mvf/void-packages pr/blender-alembic
https://github.com/void-linux/void-packages/pull/23498

blender: update to 2.83.2, enable alembic support
Smoke-tested (export and import simple mesh) on x86_64. Fixes #23112

A patch file from https://github.com/void-linux/void-packages/pull/23498.patch is attached

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From 46acef15d74d53fda68d18ca4477d743cd133553 Mon Sep 17 00:00:00 2001
From: Matthias von Faber <mvf@gmx.eu>
Date: Thu, 9 Jul 2020 19:34:54 +0200
Subject: [PATCH 1/2] alembic: update to 1.7.13, build without TR1

TR1 is an obsolete C++ extension and incompatible with Blender
---
 common/shlibs            |  2 +-
 srcpkgs/alembic/template | 15 +++++++++++----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/common/shlibs b/common/shlibs
index 75bf83002d5..be52293607b 100644
--- a/common/shlibs
+++ b/common/shlibs
@@ -3939,7 +3939,7 @@ libOpenImageDenoise.so.0 openimagedenoise-1.2.0_1
 libcbang0.so cbang-1.3.3_1
 libblosc.so.1 c-blosc-1.17.1_1
 libopenvdb.so.7.0 openvdb-7.0.0_1
-libAlembic.so.1.7 alembic-1.7.12_1
+libAlembic.so.1.7 alembic-1.7.13_1
 libmodsecurity.so.3 modsecurity-3.0.4_1
 libraven.so.0 budgie-desktop-10.5.1_1
 libbudgie-private.so.0 budgie-desktop-10.5.1_1
diff --git a/srcpkgs/alembic/template b/srcpkgs/alembic/template
index 89c51cb461f..71fc79c0da4 100644
--- a/srcpkgs/alembic/template
+++ b/srcpkgs/alembic/template
@@ -1,17 +1,16 @@
 # Template file for 'alembic'
 pkgname=alembic
-version=1.7.12
+version=1.7.13
 revision=1
 build_style=cmake
-configure_args="-DALEMBIC_LIB_USES_TR1=1"
 hostmakedepends="pkg-config"
-makedepends="zlib-devel ilmbase-devel libatomic-devel"
+makedepends="zlib-devel ilmbase-devel"
 short_desc="Open framework for storing and sharing scene data"
 maintainer="Orphaned <orphan@voidlinux.org>"
 license="BSD-3-Clause, MIT"
 homepage="https://alembic.io"
 distfiles="https://github.com/alembic/alembic/archive/${version}.tar.gz"
-checksum=6c603b87c9a3eaa13618e577dd9ef5277018cdcd09ac82d3c196ad8bed6a1b48
+checksum=14a44a1d28d1a0736655e53fc529dd4d3993bf4d03535f66de9e634c9b47d441
 
 case "$XBPS_TARGET_MACHINE" in
 	ppc64*) ;;
@@ -22,6 +21,14 @@ if [ -z "$CROSS_BUILD" ]; then
 	makedepends+=" hdf5-devel"
 fi
 
+if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
+	makedepends+=" libatomic-devel"
+
+	post_patch() {
+		printf '\ntarget_link_libraries(Alembic PRIVATE atomic)\n' >> lib/Alembic/CMakeLists.txt
+	}
+fi
+
 post_install() {
 	vlicense LICENSE.txt
 }

From ec2e85c7fa82ab9e7596683bf7c80cbdef56f295 Mon Sep 17 00:00:00 2001
From: Matthias von Faber <mvf@gmx.eu>
Date: Thu, 9 Jul 2020 19:35:11 +0200
Subject: [PATCH 2/2] blender: update to 2.83.3, enable alembic support

---
 srcpkgs/blender/template | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/srcpkgs/blender/template b/srcpkgs/blender/template
index 754af3f0c47..0b0f729e425 100644
--- a/srcpkgs/blender/template
+++ b/srcpkgs/blender/template
@@ -1,6 +1,6 @@
 # Template file for 'blender'
 pkgname=blender
-version=2.83.0
+version=2.83.3
 revision=1
 build_style="cmake"
 makedepends="
@@ -9,14 +9,14 @@ makedepends="
  libsamplerate-devel ffmpeg-devel fftw-devel boost-devel pcre-devel llvm
  libopenexr-devel libopenjpeg2-devel libXi-devel openimageio-devel
  opencolorio-devel opencollada-devel python3-numpy libXrender-devel
- OpenSubdiv-devel tbb-devel libxml2-devel openvdb-devel"
+ OpenSubdiv-devel tbb-devel libxml2-devel openvdb-devel alembic-devel"
 depends="desktop-file-utils hicolor-icon-theme"
 short_desc="3D graphics creation suite"
 maintainer="Enno Boland <gottox@voidlinux.org>"
 license="GPL-2.0-or-later"
 homepage="http://www.blender.org"
 distfiles="http://download.blender.org/source/${pkgname}-${version}.tar.xz"
-checksum=14e2bc85e076b12ae94438ff3c1dd417eba642840ed32d7c979724a93aa93f1f
+checksum=57400f66da3e1500d23f8864e7e4dca26f86abc8ad99dc10d97d4872973aa2a2
 patch_args="-Np1"
 
 python_version=3
@@ -40,6 +40,7 @@ configure_args="
 -DWITH_OPENCOLLADA=ON
 -DWITH_SYSTEM_GLEW=ON
 -DWITH_OPENVDB=ON
+-DWITH_ALEMBIC=ON
 -DWITH_BUILDINFO=OFF
 -DPYTHON_VERSION=$py3_ver
 -DPYTHON_LIBPATH=/usr/lib

Re: blender: update to 2.83.3, enable alembic support

[mvf]

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New comment by mvf on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-663350519

Comment:
@Gottox Since you're the `blender` maintainer, care to merge this? The `x86_64` build timed out, but I actually tested it.

Re: blender: update to 2.83.3, enable alembic support

[Gottox]

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New comment by Gottox on void-packages repository

https://github.com/void-linux/void-packages/pull/23498#issuecomment-663352535

Comment:
Thanks for taking care! Looks good to me! :+1: 

Re: [PR PATCH] [Merged]: blender: update to 2.83.3, enable alembic support

[Gottox]

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There's a merged pull request on the void-packages repository

blender: update to 2.83.3, enable alembic support
https://github.com/void-linux/void-packages/pull/23498

Description:
Smoke-tested (export and import simple mesh) on x86_64. Fixes #23112