5 files changed, 6 insertions, 5 deletions
diff --git a/toys/posix/chgrp.c b/toys/posix/chgrp.c
index 1e56d973..807ac824 100644
--- a/toys/posix/chgrp.c
+++ b/toys/posix/chgrp.c
@@ -100,7 +100,7 @@ void chgrp_main(void)
   if (CFG_TOYBOX_FREE && ischown) free(own);
 }
 
-void chown_main()
+void chown_main(void)
 {
   chgrp_main();
 }
diff --git a/toys/posix/logger.c b/toys/posix/logger.c
index fae3fddb..906d64f4 100644
--- a/toys/posix/logger.c
+++ b/toys/posix/logger.c
@@ -30,7 +30,8 @@ GLOBALS(
 
 // find str in names[], accepting unambiguous short matches
 // returns offset into array of match, or -1 if no match
-int arrayfind(char *str, char *names[], int len)
+// TODO: move to lib?
+static int arrayfind(char *str, char *names[], int len)
 {
   int j, i, ll = 0, maybe = -1;
 
diff --git a/toys/posix/patch.c b/toys/posix/patch.c
index e0f13dd7..f0aad4ee 100644
--- a/toys/posix/patch.c
+++ b/toys/posix/patch.c
@@ -259,7 +259,7 @@ done:
 }
 
 // read a filename that has been quoted or escaped
-char *unquote_file(char *filename)
+static char *unquote_file(char *filename)
 {
   char *s = filename, *t;
 
diff --git a/toys/posix/ps.c b/toys/posix/ps.c
index 7013dc57..304fe006 100644
--- a/toys/posix/ps.c
+++ b/toys/posix/ps.c
@@ -1280,7 +1280,7 @@ static void default_ko(char *s, void *fields, char *err, struct arg_list *arg)
   if (x) help_help();
 }
 
-void common_setup(void)
+static void common_setup(void)
 {
   char buf[128];
   int i;
diff --git a/toys/posix/test.c b/toys/posix/test.c
index d1ea1663..3fadf3ad 100644
--- a/toys/posix/test.c
+++ b/toys/posix/test.c
@@ -49,7 +49,7 @@ config TEST_GLUE
 #include "toys.h"
 
 // Consume 3, 2, or 1 argument test, returning result and *count used.
-int do_test(char **args, int *count)
+static int do_test(char **args, int *count)
 {
   char c, *s;
   int i;