make usage_compressed.h generation _always_ update mtime

[oweals/busybox.git] / applets / usage_compressed

diff --git a/applets/usage_compressed b/applets/usage_compressed
index 9da683088faa5d99341d8363f6f13c7a80714e17..e1fd0d94df9009477f9b1488951e5cb6b3cf0de5 100755 (executable)
--- a/applets/usage_compressed
+++ b/applets/usage_compressed
@@ -7,13 +7,37 @@ test "$target" || exit 1
 test "$loc" || loc=.
 test -x "$loc/usage" || exit 1
 test "$SED" || SED=sed
+test "$DD" || DD=dd
 
-sz=`"$loc/usage" | wc -c` || exit 1
+exec >"$target.$$"
 
-exec >"$target"
+echo '#define UNPACKED_USAGE "" \'
+"$loc/usage" | od -v -t x1 \
+| $SED -e 's/^[^ ]*//' \
+       -e 's/ //g' \
+       -e '/^$/d' \
+       -e 's/\(..\)/\\x\1/g' \
+       -e 's/^/"/' \
+       -e 's/$/" \\/'
+echo ''
 
-echo 'static const char packed_usage[] ALIGN1 = '
-"$loc/usage" | bzip2 -1 | od -v -t x1 \
-| $SED -e 's/^[^ ]*//' -e 's/  *\(..\)/\\x\1/g' -e 's/^\(.*\)$/"\1"/'
-echo ';'
-echo '#define SIZEOF_usage_messages' `expr 0 + $sz`
+echo '#define PACKED_USAGE \'
+## Breaks on big-endian systems!
+## # Extra effort to avoid using "od -t x1": -t is not available
+## # in non-CONFIG_DESKTOPed busybox od
+##
+## "$loc/usage" | bzip2 -1 | od -v -x \
+## | $SED -e 's/^[^ ]*//' \
+##     -e 's/ //g' \
+##     -e '/^$/d' \
+##     -e 's/\(..\)\(..\)/0x\2,0x\1,/g'
+##     -e 's/$/ \\/'
+"$loc/usage" | bzip2 -1 | $DD bs=2 skip=1 2>/dev/null | od -v -t x1 \
+| $SED -e 's/^[^ ]*//' \
+       -e 's/ //g' \
+       -e '/^$/d' \
+       -e 's/\(..\)/0x\1,/g' \
+       -e 's/$/ \\/'
+echo ''
+
+mv -- "$target.$$" "$target"