$ sudo port install bison flex readline gawk libffi \
git mercurial graphviz pkgconfig python36
+On FreeBSD use the following command to install all prerequisites:
+
+ # pkg install bison flex readline gawk libffi\
+ git mercurial graphviz pkgconfig python3 python36 tcl-wrapper
+
+On FreeBSD system use gmake instead of make. To run tests use:
+ % MAKE=gmake CC=cc gmake test
+
There are also pre-compiled Yosys binary packages for Ubuntu and Win32 as well
as a source distribution for Visual Studio. Visit the Yosys download page for
more information: http://www.clifford.at/yosys/download.html