unifdef
Remove cpp '#ifdef' lines from files
RUN apt-get update && \
apt-get install -y unifdef
RUN apt-get update && \
apt-get install -y unifdef
RUN pacman -S --noconfirm unifdef
RUN apt-get update && \
apt-get install -y unifdef
RUN dnf install -y unifdef
RUN apt-get update && \
apt-get install -y unifdef