3 TYPES
='void|char|int|File|gboolean|GNode|GList|WINDOW'
5 egrep -h '^('$TYPES').*;$' *.c |
sed 's/^/extern /'
10 egrep '^('$TYPES').*(\)|,)$' $file |
grep -v '^int main(.*)' |
sed 's/)$/);/'
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