Fix test for working gnuplot in reg_wrapper.sh

`gnuplot -e "set terminal png"` does not return an error if the command fails, but prints an error message. So instead of checking for an error the test now checks for a non-empty output. This fixes `make check` on hosts with a gnuplot which does not support `set terminal png`. Signed-off-by: Stefan Weil <[email protected]>
DanBloomberg · Oct 12, 2024 · fa3992f · fa3992f
1 parent bcaa728
commit fa3992f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/prog/reg_wrapper.sh b/prog/reg_wrapper.sh
@@ -40,7 +40,7 @@ case "${TEST_NAME}" in
     baseline|boxa[1234]|colormask|colorspace|crop|dna|enhance|extrema|fpix1|hash|italic|kernel|nearline|numa[123]|pixa1|projection|rank|rankbin|rankhisto|wordboxes)
         GNUPLOT=$(which gnuplot || which wgnuplot)
 
-        if [ -z "${GNUPLOT}" ] || ! "${GNUPLOT}" -e "set terminal png" 2>/dev/null ; then
+        if [ -z "${GNUPLOT}" ] || [ -n "$(${GNUPLOT} -e 'set terminal png' 2>&1)" ] ; then
             exec ${@%${TEST}} /bin/sh -c "exit 77"
         fi
 esac