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-rw-r--r--contrib/pacdiff.sh.in5
1 files changed, 5 insertions, 0 deletions
diff --git a/contrib/pacdiff.sh.in b/contrib/pacdiff.sh.in
index 711763b0..6e70feeb 100644
--- a/contrib/pacdiff.sh.in
+++ b/contrib/pacdiff.sh.in
@@ -116,6 +116,11 @@ done
m4_include(../scripts/library/term_colors.sh)
+if ! type -p $diffprog >/dev/null; then
+ error "Cannot find the $diffprog binary required for viewing differences."
+ exit 1
+fi
+
case $(( USE_FIND + USE_LOCATE + USE_PACDB )) in
0) USE_PACDB=1;; # set the default search option
[^1]) error "Only one search option may be used at a time"