Build both book types

.gitignore

@@ -1,3 +1,4 @@
 road2revolution-good.pdf
 road2revolution.pdf
-road2revolution-book.pdf
+road2revolution-twocolumn-book.pdf
+road2revolution-twocolumn.pdf

Makefile

@@ -1,4 +1,4 @@
-all: road2revolution-book.pdf road2revolution-good.pdf
+all: road2revolution-twocolumn-book.pdf road2revolution-good.pdf
 
 road2revolution-good.pdf: road2revolution.pdf
 	cp $^ $@
@@ -9,6 +9,12 @@ road2revolution.pdf: *.tex
 	pdflatex road2revolution.tex
 	rm -f road2revolution.aux road2revolution.log road2revolution.out road2revolution.toc road2revolution.bbl road2revolution.blg road2revolution.lot
 
-road2revolution-book.pdf: road2revolution.pdf
+road2revolution-twocolumn.pdf: *.tex
+	rm -f road2revolution-twocolumn.aux road2revolution-twocolumn.log road2revolution-twocolumn.out road2revolution-twocolumn.toc road2revolution-twocolumn.bbl road2revolution-twocolumn.blg road2revolution-twocolumn.lot
+	pdflatex -jobname road2revolution-twocolumn "\def\maketwocolumn{}\input{road2revolution}"
+	pdflatex -jobname road2revolution-twocolumn "\def\maketwocolumn{}\input{road2revolution}"
+	rm -f road2revolution-twocolumn.aux road2revolution-twocolumn.log road2revolution-twocolumn.out road2revolution-twocolumn.toc road2revolution-twocolumn.bbl road2revolution-twocolumn.blg road2revolution-twocolumn.lot
+
+road2revolution-twocolumn-book.pdf: road2revolution-twocolumn.pdf
 	pdfbook2 --paper=a4paper $^
 

road2revolution.tex

@@ -1,4 +1,8 @@
-\documentclass[10pt,a5paper,oneside]{article}
+\ifdefined\maketwocolumn
+  \documentclass[10pt,a5paper,oneside]{article}
+\else
+  \documentclass[12pt,a5paper,twoside]{article}
+\fi
 \usepackage{authblk}
 \usepackage{graphicx}
 \usepackage{csquotes}
@@ -7,7 +11,12 @@
 \setlength{\epigraphwidth}{\textwidth}
 \renewcommand{\epigraphflush}{center} % center box that epigraph is in
 \renewcommand{\sourceflush}{center} % center Lenin's name
-\usepackage[top=0.25cm,bottom=0.6cm,footskip=0.5cm,inner=0.05cm,outer=0.5cm]{geometry}
+
+\ifdefined\maketwocolumn
+  \usepackage[top=0.25cm,bottom=0.6cm,footskip=0.5cm,inner=0.05cm,outer=0.5cm]{geometry}
+\else
+  \usepackage[top=1.25cm,bottom=1.25cm,footskip=0.6cm,outer=1.5cm]{geometry}
+\fi
 \usepackage[T1]{fontenc}
 \usepackage[stable]{footmisc}
 \usepackage[compact]{titlesec}
@@ -34,8 +43,10 @@
 \author{Ho Chi Minh, 1927 \linebreak Translated by VietAnon \linebreak Typeset by \LaTeX\,Anon}
 \date{\today}
 
-\setlength{\columnsep}{1.95em}
-\setlength{\emergencystretch}{1em}
+\ifdefined\maketwocolumn
+  \setlength{\columnsep}{1.95em}
+  \setlength{\emergencystretch}{1em}
+\fi
 \hyphenation{pro-vin-ces}
 \hyphenation{Fre-nch}
 \hyphenation{inter-natio-na-lism}
@@ -60,7 +71,9 @@
 \centerline{Footnotes from the source PDF use arabic numerals.}
 \centerline{Footnotes added in the English translation use roman numerals.}
 
-\twocolumn
+\ifdefined\maketwocolumn
+  \twocolumn
+\fi
 
 \clearpage