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+.Dd July 22, 1995
+.Dt F77 1
+.Os FreeBSD
+.Sh NAME
+.Nm f77
+.Nd FORTRAN compiler driver
+.Sh SYNOPSIS
+.Nm f77
+.Op options | files
+.Sh DESCRIPTION
+.Nm f77
+is a simple driver for the FORTRAN compilation process under FreeBSD.
+.Pp
+.Nm f77
+calls the FORTRAN to C translator 
+.Nm f2c
+to translate the FORTRAN source to C. Then it calls 
+.Nm cc
+to compile the resulting C code and 
+.Nm as
+to assemble it. After this stage it may call
+.Nm ld
+to link the resulting object files together with the
+.Nm f2c
+library
+.Nm libf2c
+, the 
+.Nm math
+library
+.Nm libm
+and other user specified libraries into an executable. Files ending in other
+suffixes than .f (.o, .c, ...) are also accepted in the commandline and will
+processed by the appropriate program.
+.Pp
+From the user side of view this FORTRAN to C translation is completely
+transparent - 
+.Nm f77
+looks like a traditional FORTRAN compiler.
+.Pp
+Available options:
+.Pp
+The options that
+.Nm f77
+recognizes are a superset of the
+.Nm f2c
+and the
+.Nm cc
+options - please refer to their manpages for more details.
+.Pp
+.Sh FILES
+file.f	FORTRAN source file
+.Pp
+file.o	object file
+.Pp
+a.out	link edited output
+.Pp
+/usr/lib/libf2c.a	f2c library (contains libF77 and libI77)
+.Pp
+/usr/lib/libf2c.so.x.y	shared f2c library
+.Pp
+.Sh SEE ALSO
+.Xr f2c 1 ,
+.Xr cc 1 ,
+.Xr as 1 ,
+.Xr ld 1
+.Sh BUGS
+The input file must end in .f - for instance .for will give problems.