Perl in a Nutshell

B::C

The C backend for the Perl compiler. Generates C source code from Perl source; the generated code corresponds to Perl’s internal structures for running the program. Compiling with the C backend won’t speed up execution of your program, but it may improve start-up time. Invoke as:

perl -MO=C[,options] program

where program is the name of the Perl script to compile. Any non-option arguments are treated as the names of objects to be saved; the main program is assumed if there are no extra arguments. Possible options are:

--

Forces end of options.

-Dopts

Debug options, which can be either concatenated or specified separately. Possible options are:

-fopt

Forces individual optimizations on or off. Possible values of opt are:

-ofilename

Sends output to filename instead of to STDOUT.

-O[n]

Sets optimization level, where n is an integer. n defaults to 1. Currently, values of 1 and higher set cog.

-uPackname

Forces apparently unused subroutines from package Packname to be compiled, letting programs use eval "foo()" even if subroutine foo isn’t seen to be used at compile time. You can specify multiple -u options.

-v

Compiles verbosely.