f2c(1) on Linux
The text e2067016b33a, as Debian 2.2 (Potato) shipped it.
Convert Fortran 77 to C or C++
Flags it lists
-
-72 -
-A -
-C -
-C++ -
-E -
-I -
-I2 -
-P -
-R -
-T -
-U -
-W -
-a -
-c -
-cd -
-d -
-ec -
-ext -
-f -
-g -
-h -
-i2 -
-i90 -
-kr -
-onetrip -
-p -
-r -
-r8 -
-s -
-u -
-w -
-w8 -
-z