cproto(1) on Linux
The text cd51bed557e4, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
generate C function prototypes and convert function definitions
Flags it lists
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-S -
-T -
-V -
-a -
-b -
-c -
-d -
-e -
-i -
-l -
-m -
-p -
-q -
-s -
-t -
-v -
-x