Index: randombytes.c
==================================================================
--- randombytes.c
+++ randombytes.c
@@ -1,11 +1,11 @@
 #include <limits.h>
 #include <tcl.h>
 
 #include "randombytes.h"
 
-long getrandom_impl(void *buf, unsigned int buflen);
+static long getrandom_impl(void *buf, unsigned int buflen);
 void randombytes(unsigned char *buffer, unsigned long long length) {
 	long gr_ret;
 	int errorCount = 0;
 
 	/*
@@ -46,11 +46,11 @@
 #if defined(HAVE_GETRANDOM)
 #  ifdef HAVE_SYS_RANDOM_H
 #    include <sys/random.h>
 #  endif
 
-long getrandom_impl(void *buf, unsigned int buflen) {
+static long getrandom_impl(void *buf, unsigned int buflen) {
 	ssize_t gr_ret;
 
 	gr_ret = getrandom(buf, buflen, 0);
 
 	return(gr_ret);
@@ -57,11 +57,11 @@
 }
 
 #elif defined(HAVE_GETENTROPY)
 #include <unistd.h>
 
-long getrandom_impl(void *buf, unsigned int buflen) {
+static long getrandom_impl(void *buf, unsigned int buflen) {
 	int ge_ret;
 
 	if (buflen > 255) {
 		buflen = 255;
 	}
@@ -73,11 +73,11 @@
 
 	return(buflen);
 }
 #elif defined(HAVE_CRYPTGENRANDOM) && 0
 #include <tcl.h>
-long getrandom_impl(void *buf, unsigned int buflen) {
+static long getrandom_impl(void *buf, unsigned int buflen) {
 	Tcl_Panic("Incomplete CryptGenRandom");
 }
 #else
 #  ifdef HAVE_SYS_TYPES_H
 #    include <sys/types.h>
@@ -89,11 +89,11 @@
 #    include <fcntl.h>
 # endif
 # ifdef HAVE_UNISTD_H
 #    include <unistd.h>
 # endif
-long getrandom_impl(void *buf, unsigned int buflen) {
+static long getrandom_impl(void *buf, unsigned int buflen) {
 	ssize_t read_ret;
 	long retval;
 	int fd = -1;
 
 	fd = open("/dev/urandom", O_RDONLY);