1/^#define/ {
 2	cfg[$2] = $3
 3}
 4
 5function printvar(var) {
 6	print "#define AV_" var " " cfg[var]
 7}
 8
 9END {
10	print "/* generated by avconfig.awk */"
11	print "#ifndef AVUTIL_AVCONFIG_H"
12	print "#define AVUTIL_AVCONFIG_H"
13	printvar("HAVE_BIGENDIAN")
14	printvar("HAVE_FAST_UNALIGNED")
15	print "#endif /* AVUTIL_AVCONFIG_H */"
16}