awk function not getting called if I have a begin statement in the awk file

I have an awk file that loads other awk files. Rather than calling the loading code everytime I run the main function of the file I'm trying to load everything in a BEGIN statement first, but if I do that the function itself never gets run. Is there anyway to have a BEGIN statement, and functions called from outside of the script?

My awk script:

#! /usr/bin/awk -f

function include(includeFile) {INCLUDE_FILES[includeFile]}
function sourceIncludes()
{
    if(!l)
    {
        getline t < "/proc/self/cmdline"; split(t,T, "\0")
        scriptname=T[3]
        for (i = 1; i < ARGC; i++) 
            args=args " "ARGV[i]
        for(iFile in INCLUDE_FILES )
            inc = inc " -f "iFile
        cmd=sprintf("%s %s -v l=1 -- %s\n",scriptname,inc,args)
        system(cmd); exit
    }
}

function pkginfo(pkg)
{
    { print pkg }
}

BEGIN {
    include("wrap.awk")
    sourceIncludes()
}

wrap.awk contents:

#! /usr/bin/awk -f

function wrap(text, q, y, z)
{
    while(text)
    {
        q = match(text, / |$/)
        y += q
        if(y >= 80)
        {
            z = z RS sprintf("%c", 0x2502) #chr(2502)#"\\u2502"
            for(i = 0; i < 20; i++)
                z = z FS
            y = q - 1
        }
        else if(z)
            z = z FS
        z = z substr(text, 1, q - 1)
        text = substr(text, q + 1)
    }
    return z
}

This is how I call everything from bash / zsh:

awk -f ~/.ZSH_CUSTOM/awkscripts/pkginfo.awk -e '{ pkginfo("test") }'