am/latex

   Redirect latexs stdin from /dev/null so it will actually fail if
   something breaks instead of waiting for input.

doc/istl/istl.tex doc/istl/comm/communication.tex
   Make it build with the new tetex in Debian/etch which uses
   pdfelatex in dvi-mode.

[[Imported from SVN: r523]]

doc/istl/comm/communication.tex

@@ -18,11 +18,10 @@
   stringstyle=\ttfamily, commentstyle=\it, extendedchars=true}
 
 \newif\ifpdf
-\ifx\pdfoutput\undefined
+\ifnum\ifx\pdfoutput\undefined0\else\pdfoutput\fi<1
 \pdffalse % we are not running PDFLaTeX
 \else
-\pdfoutput=1 % we are running PDFLaTeX
-\pdftrue
+\pdftrue % we are running PDFLaTeX
 \fi
 
 \ifpdf

doc/istl/istl.tex

@@ -17,11 +17,10 @@
   stringstyle=\ttfamily, commentstyle=\it, extendedchars=true}
 
 \newif\ifpdf
-\ifx\pdfoutput\undefined
+\ifnum\ifx\pdfoutput\undefined0\else\pdfoutput\fi<1
 \pdffalse % we are not running PDFLaTeX
 \else
-\pdfoutput=1 % we are running PDFLaTeX
-\pdftrue
+\pdftrue % we are running PDFLaTeX
 \fi
 
 \ifpdf