fix coding style in sowm.c

[kiedtl]

I think it would be a good idea to fix code style in sowm.c to conform to usual style.

• move function prototypes to sowm.h (also global variables, data structures, basically anything that's not a function.)

• add prototypes for function that don't have them

• add some formatting to the Makefile, for heaven's sake

• OPTIONALLY compile with -Wold-style-declaration -Wmissing-prototype -Werror for stricter code style

If you think this a good idea I can submit a PR for this

Thanks, kiedtl

[dylanaraps]

move function prototypes to sowm.h (also global variables, data structures, basically anything that's not a function.)

I don't see this as necessary given the size of sowm.

change function declarations from

This was cut off?

add prototypes for function that don't have them

Will fix this one.

add some formatting to the Makefile, for heaven's sake

Care to elaborate?

OPTIONALLY compile with -Wold-style-declaration -Wmissing-prototype -Werror for stricter code style

I agree to -Wmissing-prototype. 👍

[kiedtl]

This was cut off?

sorry, I removed it later and forgot to delete that part.

Care to elaborate?

Well, the variables at the top don't have any spacing in them, which made them a pain to read (well, at least for me anyway):

CFLAGS+= -blah --blah=blah

if spaces were added:

CLFLAGS    += -blah --blah=blah

I guess it really doesn't matter though, it's not like the average user is going to fuss about a Makefile's formatting.