--- /dev/null
+--- a/configure.ac
++++ b/configure.ac
+@@ -138,11 +138,17 @@ AS_IF([test "x$enable_android" = "xyes"], [
+ # Checks for library functions.
+ AC_CHECK_FUNCS([gethostname socket])
+
+- # Check for presence of pdfLaTeX
+- AC_CHECK_PROG(PDFLATEX, pdflatex, pdflatex)
+- if test -z "$PDFLATEX"; then
+- AC_MSG_WARN([Unable to create PDF version of the documentation.])
+- fi
++ AC_ARG_ENABLE([docs],
++ AS_HELP_STRING([--enable-docs], [Build documentation using PDFLaTeX]),
++ [
++ # Check for presence of pdfLaTeX
++ AC_CHECK_PROG(PDFLATEX, pdflatex, pdflatex)
++ if test -z "$PDFLATEX"; then
++ AC_MSG_WARN([Unable to create PDF version of the documentation.])
++ fi
++ ], [
++ PDFLATEX="no"
++ ])
+
+ AC_ARG_ENABLE([libdaemon],
+ AS_HELP_STRING([--disable-libdaemon], [Build without libdaemon support]),
+--