emsdk 3.1.50 cause builds errors

[kalwalt]

If you try to build with emsdk 3.1.50 the build process end with this error message:

Running command: emcc -I/src/emscripten/WebARKitLib/include -I/src/build/ -I/src/emscripten/ -I/src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher /src/emscripten/WebARKitLib/lib/SRC/AR/arLabelingSub/*.c /src/emscripten/WebARKitLib/lib/SRC/AR/*.c /src/emscripten/WebARKitLib/lib/SRC/ARICP/*.c /src/emscripten/WebARKitLib/lib/SRC/ARUtil/log.c /src/emscripten/WebARKitLib/lib/SRC/ARUtil/file_utils.c /src/emscripten/WebARKitLib/lib/SRC/AR2/handle.c /src/emscripten/WebARKitLib/lib/SRC/AR2/imageSet.c /src/emscripten/WebARKitLib/lib/SRC/AR2/jpeg.c /src/emscripten/WebARKitLib/lib/SRC/AR2/marker.c /src/emscripten/WebARKitLib/lib/SRC/AR2/featureMap.c /src/emscripten/WebARKitLib/lib/SRC/AR2/featureSet.c /src/emscripten/WebARKitLib/lib/SRC/AR2/selectTemplate.c /src/emscripten/WebARKitLib/lib/SRC/AR2/surface.c /src/emscripten/WebARKitLib/lib/SRC/AR2/tracking.c /src/emscripten/WebARKitLib/lib/SRC/AR2/tracking2d.c /src/emscripten/WebARKitLib/lib/SRC/AR2/matching.c /src/emscripten/WebARKitLib/lib/SRC/AR2/matching2.c /src/emscripten/WebARKitLib/lib/SRC/AR2/template.c /src/emscripten/WebARKitLib/lib/SRC/AR2/searchPoint.c /src/emscripten/WebARKitLib/lib/SRC/AR2/coord.c /src/emscripten/WebARKitLib/lib/SRC/AR2/util.c /src/emscripten/WebARKitLib/lib/SRC/KPM/kpmHandle.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/kpmRefDataSet.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/kpmMatching.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/kpmResult.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/kpmUtil.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/kpmFopen.c /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/detectors/DoG_scale_invariant_detector.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/detectors/gaussian_scale_space_pyramid.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/detectors/gradients.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/detectors/harris.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/detectors/orientation_assignment.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/detectors/pyramid.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/facade/visual_database_facade.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/matchers/hough_similarity_voting.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/matchers/freak.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/framework/date_time.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/framework/image.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/framework/logger.cpp /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/framework/timers.cpp /src/emscripten/WebARKitLib/lib/SRC/WebARKit/WebARKitLog.cpp -Oz  -Wno-warn-absolute-paths -s TOTAL_MEMORY=134217728  -s USE_ZLIB=1 -s USE_LIBJPEG=1 --memory-init-file 0 -s EXPORTED_RUNTIME_METHODS=["FS"] -s ALLOW_MEMORY_GROWTH=1 --bind    -D HAVE_NFT -D WITH_FILTERING=1 -r -o /src/build/libar.bc 

stderr: ports:INFO: retrieving port: zlib from https://github.com/madler/zlib/archive/refs/tags/v1.2.13.tar.gz
ports:INFO: unpacking port: zlib
cache:INFO: generating port: sysroot/lib/wasm32-emscripten/libz.a... (this will be cached in "/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/libz.a" for subsequent builds)
system_libs:INFO: compiled 15 inputs in 1.27s
cache:INFO:  - ok
ports:INFO: retrieving port: libjpeg from https://storage.googleapis.com/webassembly/emscripten-ports/jpegsrc.v9c.tar.gz
ports:INFO: unpacking port: libjpeg
cache:INFO: generating port: sysroot/lib/wasm32-emscripten/libjpeg.a... (this will be cached in "/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/libjpeg.a" for subsequent builds)
system_libs:INFO: compiled 59 inputs in 1.86s
cache:INFO:  - ok
/src/emscripten/WebARKitLib/lib/SRC/AR2/selectTemplate.c:279:41: warning: implicit conversion from 'int' to 'float' changes value from 2147483647 to 2147483648 [-Wimplicit-const-int-float-conversion]
  279 |         k = (int)((float )j * rand() / (RAND_MAX + 1.0F));
      |                                         ^~~~~~~~ ~
/emsdk/upstream/emscripten/cache/sysroot/include/stdlib.h:84:19: note: expanded from macro 'RAND_MAX'
   84 | #define RAND_MAX (0x7fffffff)
      |                   ^~~~~~~~~~
1 warning generated.
In file included from /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/facade/visual_database_facade.cpp:37:
In file included from /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/matchers/visual_database-inline.h:44:
In file included from /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/matchers/visual_database.h:44:
In file included from /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/homography_estimation/robust_homography.h:45:
In file included from /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/Eigen/Core:50:
/emsdk/upstream/emscripten/cache/sysroot/include/c++/v1/complex:1404:53: error: expected unqualified-id
 1404 |     if (__x.real() == 0 && (__x.imag() == 0 || std::isnan(__x.imag())))
      |                                                     ^
/src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/framework/error.h:66:18: note: expanded from macro 'isnan'
   66 | #define isnan(x) ((x) != (x))
      |                  ^
1 error generated.
emcc: error: '/emsdk/upstream/bin/clang -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr --sysroot=/emsdk/upstream/emscripten/cache/sysroot -DEMSCRIPTEN -Werror=implicit-function-declaration -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/src/emscripten/WebARKitLib/include -I/src/build/ -I/src/emscripten/ -I/src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher -Oz -D HAVE_NFT -D WITH_FILTERING=1 /src/emscripten/WebARKitLib/lib/SRC/KPM/FreakMatcher/facade/visual_database_facade.cpp -c -o /tmp/emscripten_temp_5gen0ckr/visual_database_facade_100.o' failed (returned 1)

exec error: 1
Built at Wed Dec 20 22:30:43 UTC 2023
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As you can see this happens while building the libar.bc intermediate libs. I have no idea why this happens but i will investigate.

[kalwalt]

complete log with verbose output at this gist