Note: This was using an armv7 poudriere jail on a aarch64 machine able to run armv7 code.
work/rJava/config.log reports: configure:3852: checking whether JNI programs can be compiled configure:3865: cc -o conftest -O2 -pipe -DLIBICONV_PLUG -g -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -I/usr/local/openjdk8/jre/../include -I/usr/local/openjdk8/jre/../ include/freebsd -Wl,-rpath=/usr/local/openjdk8/jre/lib/armv7/server conftest.c -Wl,-rpath=/usr/local/openjdk8/jre/lib/armv7/server -L/usr/local/openjdk8/jre/lib/armv7/server -ljvm -lpthread >&5 ld: error: unable to find library -ljvm cc: error: linker command failed with exit code 1 (use -v to see invocation) configure:3865: $? = 1 === Mark Millard marklmi at yahoo.com