On core-updates-frozen, Blender fails to build like this:
------
[ 45%] Building C object
source/blender/imbuf/CMakeFiles/bf_imbuf.dir/intern/scaling.c.o
cd /tmp/guix-build-blender-2.92.0.drv-0/build/source/blender/imbuf &&
/gnu/store/r0y0ll80a350fmfjdpb6m97fk8cm2af1-gcc-10.3.0/bin/gcc -DNDEBUG
-DWITH_ASSERT_ABORT -DWITH_AVI -DWITH_CINEON -DWITH_DDS -DWITH_FFMPEG
-DWITH_HDR -DWITH_OPENEXR -DWITH_OPENGL -DWITH_OPENIMAGEIO -DWITH_OPENJPEG
-DWITH_TIFF -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE
-D__LITTLE_ENDIAN__ -D__MMX__ -D__SSE2__ -D__SSE__
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/imbuf
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/blenkernel
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/blenlib
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/blenloader
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/gpu
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/makesdna
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/makesrna
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/sequencer
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/intern/guardedalloc
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/intern/memutil
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/io/avi
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/intern/ffmpeg
-I/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/intern/opencolorio
-isystem
/gnu/store/zw0qsbf5fk6hk556mcg1dn7vyl6nsl8x-openjpeg-2.4.0/include/openjpeg-2.4
-isystem /usr/include -Wall -Wcast-align -Werror=implicit-function-declaration
-Werror=return-type -Werror=vla -Wstrict-prototypes -Wmissing-prototypes
-Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter
-Wwrite-strings -Wlogical-op -Wundef -Winit-self -Wmissing-include-dirs
-Wno-div-by-zero -Wtype-limits -Wformat-signedness -Wrestrict -Wnonnull
-Wabsolute-value -Wuninitialized -Wredundant-decls -Wshadow
-Wno-error=unused-but-set-variable -Wimplicit-fallthrough=5 -fopenmp
-std=gnu11 -msse -pipe -fPIC -funsigned-char -fno-strict-aliasing
-ffp-contract=off -msse2
-fmacro-prefix-map="/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/"=""
-fmacro-prefix-map="/tmp/guix-build-blender-2.92.0.drv-0/build/"=""
-Wno-maybe-uninitialized -O2 -g -DNDEBUG -MD -MT
source/blender/imbuf/CMakeFiles/bf_imbuf.dir/intern/scaling.c.o -MF
CMakeFiles/bf_imbuf.dir/intern/scaling.c.o.d -o
CMakeFiles/bf_imbuf.dir/intern/scaling.c.o -c
/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/imbuf/intern/scaling.c
/tmp/guix-build-blender-2.92.0.drv-0/blender-2.92.0/source/blender/imbuf/intern/openexr/openexr_api.cpp:35:10:
fatal error: Iex.h: No such file or directory
35 | #include <Iex.h>
| ^~~~~~~
compilation terminated.
make[2]: ***
[source/blender/imbuf/intern/openexr/CMakeFiles/bf_imbuf_openexr.dir/build.make:79:
source/blender/imbuf/intern/openexr/CMakeFiles/bf_imbuf_openexr.dir/openexr_api.cpp.o]
Error 1
make[2]: Leaving directory '/tmp/guix-build-blender-2.92.0.drv-0/build'
make[1]: *** [CMakeFiles/Makefile2:5942:
source/blender/imbuf/intern/openexr/CMakeFiles/bf_imbuf_openexr.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
cc1: warning: /usr/include: No such file or directory [-Wmissing-include-dirs]
------
Any ideas?
