Linking warning: could not create compact unwind for ___emutls_get_address: registers 23 and 24 not saved contiguously in frame

[Praveen C]

Hello

When compiling deal.ii on macos M1 with clang I get these messages while linking

[ 90%] Linking CXX shared library ../lib/libdeal_II.g.dylib

ld: warning: could not create compact unwind for ___emutls_get_address: registers 23 and 24 not saved contiguously in frame

Compiling succeeds and examples seem to run, though I see those warnings there also

[100%] Built target release

Consolidate compiler generated dependencies of target step-3

[ 50%] Building CXX object CMakeFiles/step-3.dir/step-3.cc.o

[100%] Linking CXX executable step-3

ld: warning: could not create compact unwind for ___emutls_get_address: registers 23 and 24 not saved contiguously in frame

[100%] Built target step-3

But is this something we can ignore or needs to be fixed ?

Thanks

praveen

[Daniel Arndt]

Praveen,

I'm also seeing this warning and from what I found on the internet it's harmless. Exception handling might be a bit slower but that's about it.

Best,

Daniel

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