--- file_not_specified_in_diff	
+++ file_not_specified_in_diff	
@@ -, +, @@ 
--- scripts/pdf90
+++ scripts/pdf90
@@ -43,12 +43,12 @@ 
 for d in /etc /usr/share/etc /usr/local/share /usr/local/etc
 do if test -f $d/pdfnup.conf; then
    echo "Reading site configuration from $d/pdfnup.conf"
-   source $d/pdfnup.conf
+   . $d/pdfnup.conf
    fi 
 done
 if test -f ~/.pdfnup.conf; then 
    echo "Reading user defaults from ~/.pdfnup.conf";
-   source ~/.pdfnup.conf; 
+   . ~/.pdfnup.conf; 
 fi
 #######################################################################
 ##
@@ -71,8 +71,8 @@ 
 ##
 ##  Check that necessary LaTeX packages are installed
 ##
-PATH=`dirname "$pdflatex"`:$PATH
-export PATH
+modifyPath="${pdflatex%/*}"
+[ -n "$modifyPath" ] && export PATH="$modifyPath:$PATH"
 case `kpsewhich pdfpages.sty` in
 	"") echo "pdf90: pdfpages.sty not installed"; exit 1;;
 esac
@@ -136,6 +136,19 @@ 
 ##
 ##  That's the arguments done.
 ##
+
+mkTempDir=''
+trap 'test -n "$mkTempDir" && test -d "$mkTempDir" && \
+	rm -rf -- "$mkTempDir" && mkTempDir=""; \
+	trap - EXIT HUP INT TERM' EXIT HUP INT TERM
+if ! command -v mktemp >/dev/null 2>&1 || \
+	! mkTempDir=`mktemp -d -- "$tempfileDir/pdf90.XXXXXX"`
+then
+	echo "pdf90: cannot create temporary directory"
+	exit 2
+fi
+tempfileDir=$mkTempDir
+
 ##
 ##  Now work on the input file (or files in turn)
 ##
--- scripts/pdfjoin
+++ scripts/pdfjoin
@@ -50,12 +50,12 @@ 
 for d in /etc /usr/share/etc /usr/local/share /usr/local/etc
 do if test -f $d/pdfnup.conf; then
    echo "Reading site configuration from $d/pdfnup.conf"
-   source $d/pdfnup.conf
+   . $d/pdfnup.conf
    fi 
 done
 if test -f ~/.pdfnup.conf; then 
    echo "Reading user defaults from ~/.pdfnup.conf";
-   source ~/.pdfnup.conf; 
+   . ~/.pdfnup.conf; 
 fi
 #######################################################################
 ##
@@ -99,8 +99,8 @@ 
 ##
 ##  Check that necessary LaTeX packages are installed
 ##
-PATH=`dirname "$pdflatex"`:$PATH
-export PATH
+modifyPath="${pdflatex%/*}"
+[ -n "$modifyPath" ] && export PATH="$modifyPath:$PATH"
 case `kpsewhich pdfpages.sty` in
 	"") echo "pdfjoin: pdfpages.sty not installed"; exit 1;;
 esac
@@ -171,6 +171,19 @@ 
 ##
 ##  That's the arguments done.
 ##
+
+mkTempDir=''
+trap 'test -n "$mkTempDir" && test -d "$mkTempDir" && \
+	rm -rf -- "$mkTempDir" && mkTempDir=""; \
+	trap - EXIT HUP INT TERM' EXIT HUP INT TERM
+if ! command -v mktemp >/dev/null 2>&1 || \
+	! mkTempDir=`mktemp -d -- "$tempfileDir/pdfjoin.XXXXXX"`
+then
+	echo "pdfjoin: cannot create temporary directory"
+	exit 2
+fi
+tempfileDir=$mkTempDir
+
 ##
 ##  Now work on the input files
 ##
--- scripts/pdfnup
+++ scripts/pdfnup
@@ -57,12 +57,12 @@ 
 for d in /etc /usr/share/etc /usr/local/share /usr/local/etc
 do if test -f $d/pdfnup.conf; then
      echo "Reading site configuration from $d/pdfnup.conf"
-     source $d/pdfnup.conf
+     . $d/pdfnup.conf
    fi 
 done
 if test -f ~/.pdfnup.conf; then 
    echo "Reading user defaults from ~/.pdfnup.conf";
-   source ~/.pdfnup.conf; 
+   . ~/.pdfnup.conf; 
 fi
 #######################################################################
 ##
@@ -134,8 +134,8 @@ 
 ##
 ##  Check that necessary LaTeX packages are installed
 ##
-PATH=`dirname "$pdflatex"`:$PATH
-export PATH
+modifyPath="${pdflatex%/*}"
+[ -n "$modifyPath" ] && export PATH="$modifyPath:$PATH"
 case `kpsewhich pdfpages.sty` in
 	"") echo "pdfnup: pdfpages.sty not installed"; exit 1;;
 esac
@@ -232,6 +232,20 @@ 
 ##
 ##  That's the arguments done.
 ##
+
+mkTempDir=''
+trap 'test -n "$mkTempDir" && test -d "$mkTempDir" && \
+	rm -rf -- "$mkTempDir" && mkTempDir=""; \
+	trap - EXIT HUP INT TERM' EXIT HUP INT TERM
+if ! command -v mktemp >/dev/null 2>&1 || \
+	! mkTempDir=`mktemp -d -- "$tempfileDir/pdfnup.XXXXXX"`
+then
+	echo "pdfnup: cannot create temporary directory"
+	exit 2
+fi
+tempfileDir=$mkTempDir
+
+##
 ##  Next sort out paper orientation, if not specified
 ##
 x=`echo $nup | sed 's/..$//'`