include guards

[shellwiki] / tools.sh

diff --git a/tools.sh b/tools.sh
index 2a851ab0726648818a1335872656a64bdadc6a4d..1b7e6773dac5cfe6c6bdf961e8df3ef74d980d2c 100755 (executable)
--- a/tools.sh
+++ b/tools.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 
+[ "$include_tools" ] && return 0
+include_tools="$0"
+
 if [ "$(which awk)" ]; then
   md() { awk -f "$_EXEC/md_macros.awk" -f "$_EXEC/cgilite/markdown.awk"; }
 elif [ "$(which busybox)" ]; then