Hi,
If this is too off-topic, then apologies, but it is related to compiling
OpenImageIO under MacOS as a universal binary.
I've compiled all dependencies for OIIO for both x86_64 and arm64 as
universal binaries (by adding CMAKE_OSX_ARCHITECTURES arm64;x86_64 to
build universal libraries of all dependencies and then confirmed at each
stage with lipo -archs <file> to show the dual architectures in the
libraries) libOpenImageIO_Util links just fine, but linking
libOpenImageIO.dylib fails (specifically linking in libfreetype and it's
dependency harfbuzz).
The errors are all the same library issues and along the lines of:
[ 84%] Building CXX object
src/libOpenImageIO/CMakeFiles/OpenImageIO.dir/__/include/OpenImageIO/detail/pugixml/pugixml.cpp.o
[ 84%] Linking CXX shared library ../../lib/libOpenImageIO.dylib
Undefined symbols for architecture arm64:
"_hb_buffer_add_utf8", referenced from:
_af_shaper_get_cluster in libfreetype.a(autofit.c.o)
<and more>
I checked the output from nm for both archituctures for libharfbuzz and
these functions are there:
build@M1-BuildMacMini lib % nm -gA -arch all libharfbuzz.a | grep
_hb_buffer_add_utf8
(for architecture x86_64):libharfbuzz.a:harfbuzz.cc.o: 000000000000a6b0
T _hb_buffer_add_utf8
(for architecture arm64):libharfbuzz.a:harfbuzz.cc.o: 0000000000009c94 T
_hb_buffer_add_utf8
So I can't work out why it would not link.
Does anyone have any thoughts or help on this?
Best Regards,
Simon C. Smith
Co-Founder, Lightmap LTD.
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