The -c option is used to generate an intermediate file
for each source file listed on the command line.
In
the case of C source files, compilation will halt after the parsing stage, leaving behind
p-code files with a .p1 extension. For assembly source files, compilation
will terminate after executing the assembler, leaving behind relocatable object files with
a .o extension.
This option is often used to facilitate multi-step builds using a make utility.