As another data point, in Homebrew we also saw undefined symbols error in 6.1.2 release. This is specific to macOS builds and can be reproduced with a make all in a fresh download of release tarball. Or isolated to specific problem target via make libutil.dylib, e.g. ❯ curl https://downloads.sourceforge.net/project/giflib/giflib-6.x/giflib-6.1.2.tar.gz -sL | tar x ❯ make -C giflib-6.1.2 libutil.dylib cc -std=gnu99 -fPIC -Wall -O2 -c -o qprintf.o qprintf.c cc -std=gnu99 -fPIC -Wall -O2 -c -o getarg.o...
ENH: Support building with system Eigen3 >= 5
Fails to build on macOS Sonoma (BSD iconv.h)
Build failure with Boost 1.85.0
Python 3.12 support - cdll.ktoblzcheck now raises AttributeError