===> Building for yorick-1.6.02nb2
LD_STATIC= ./configure

=============== begin top level configuration ===============

clang is not an ANSI C compiler; rerun ./configure with CC env variable
gmake: *** [Makefile:39: Make.cfg] Error 1
*** Error code 2

Stop.
bmake[1]: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-arm64/math/yorick
*** Error code 1

Stop.
bmake: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-arm64/math/yorick