Get this at a stable Gentoo Linux : ``` CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh /home/tfoerste/devel/tor/missing aclocal-1.15 -I m4 CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh /home/tfoerste/devel/tor/missing autoconf cd . && /bin/sh /home/tfoerste/devel/tor/missing automake-1.15 --foreign Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at /usr/bin/automake-1.15 line 3936. /bin/sh ./config.status --recheck running CONFIG_SHELL=/bin/sh /bin/sh ./configure CFLAGS=-O2 -march=native -pipe --no-create --no-recursion ```