1# Based on apr's make_export.awk, which is
2# based on Ryan Bloom's make_export.pl
3
4/^#[ \t]*if(def)? (AP[RUI]?_|!?defined).*/ {
5	if (old_filename != FILENAME) {
6		if (old_filename != "") printf("%s", line)
7		macro_no = 0
8		found = 0
9		count = 0
10		old_filename = FILENAME
11		line = ""
12	}
13	macro_stack[macro_no++] = macro
14	macro = substr($0, length($1)+2)
15	count++
16	line = line "#ifdef " macro "\n"
17	next
18}
19
20/^#[ \t]*endif/ {
21	if (count > 0) {
22		count--
23		line = line "#endif /* " macro " */\n"
24		macro = macro_stack[--macro_no]
25	}
26	if (count == 0) {
27		if (found != 0) {
28			printf("%s", line)
29		}
30		line = ""
31	}
32	next
33}
34
35function add_symbol (sym_name) {
36	if (count) {
37		found++
38	}
39	for (i = 0; i < count; i++) {
40		line = line "\t"
41	}
42	line = line sym_name "\n"
43
44	if (count == 0) {
45		printf("%s", line)
46		line = ""
47	}
48}
49
50/^[ \t]*(extern[ \t]+)?AP[RUI]?_DECLARE_DATA .*;$/ {
51       varname = $NF;
52       gsub( /[*;]/, "", varname);
53       gsub( /\[.*\]/, "", varname);
54       add_symbol(varname);
55}
56
57END {
58	printf("%s", line)
59}
60