Document gzip -d

[oweals/busybox.git] / applets / busybox.sh

diff --git a/applets/busybox.sh b/applets/busybox.sh
index 304ac87e7d0cc3024daf7b13fff717139c8b486f..6c91e539b34ad2e66c9261a2bc7e0e24825afaa5 100755 (executable)
--- a/applets/busybox.sh
+++ b/applets/busybox.sh
@@ -1,3 +1,13 @@
 #!/bin/sh
-sed -n -e 's/^#define.*BB_FEATURE.*$//g;y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/;' \
-    -e '/^#define/{s/.*bb_//;s/$/.o/p;}' busybox.def.h
+
+RAW=` \
+    gcc -E -dM ${1:-Config.h} | \
+    sed -n -e '/^.*BB_FEATURE.*$/d;s/^#define.*\<BB_\(.*\)\>/\1.c/gp;' \
+    | tr '[:upper:]' '[:lower:]' | sort
+`
+test "${RAW}" != "" ||  exit
+cd ${2:-.}
+# I added in the extra "ls" so only source files that
+# actually exist will show up in the compile list.
+ls -1 $RAW 2>/dev/null | sed -e 's/\.c$/\.o/g'
+