1 files changed, 17 insertions, 4 deletions
diff --git a/markdown2html b/markdown2html
index d71e434b4..280c1cf90 100644
--- a/markdown2html
+++ b/markdown2html
@@ -1,11 +1,24 @@
 #!/bin/sh -e
 # converts markdown to HTML
 
+pathfind () { # portable which(1), code taken from Debian Developer's Reference
+    OLDIFS="$IFS"
+    IFS=:
+    for _p in $PATH; do
+        if [ -x "$_p/$*" ]; then
+            IFS="$OLDIFS"
+            return 0
+        fi
+    done
+    IFS="$OLDIFS"
+    return 1
+}
+
 for p in pandoc; do
-	which $p >/dev/null 2>&1 || {
-		echo >&2 "You need '$p' to use this program!"
-		exit 1
-	}
+    pathfind $p || {
+        echo >&2 "You need '$p' to use this program!"
+        exit 1
+    }
 done
 
 iconv -t utf-8 $* | pandoc $PANDOC_OPTS | iconv -f utf-8