Fix generation of pdf graphs

diff --git a/gw-tests/lib.sh b/gw-tests/lib.sh
index 7f0d9fd0b06e19e3276c82a699dde790e04710ed..f6f4439b656e5e58adfa24c4bc4ab81d3a47ca4f 100644 (file)
--- a/gw-tests/lib.sh
+++ b/gw-tests/lib.sh
@@ -53,8 +53,8 @@ _plot() {
        echo "set terminal x11 enhanced; $(< plot.gp)" | gnuplot -persist
     fi
     I=''
-    echo 'set terminal pdfcairo color enhanced;' \
-       "$(< plot.gp)" | gnuplot > ${testname}$I.pdf
+    echo "set terminal pdfcairo solid color enhanced; set output \"${testname}$I.pdf\";" \
+       "$(< plot.gp)" | gnuplot
     echo 'set terminal pngcairo color enhanced size 750,525 font ",10" ;' \
        "$(< plot.gp)" | gnuplot > ${testname}$I.png
     mkdir -p thumb