diff --git a/pam_encfs/pam_encfs.c b/pam_encfs/pam_encfs.c

index 6686467..980c6e0 100755

--- a/pam_encfs/pam_encfs.c

+++ b/pam_encfs/pam_encfs.c

@@ -93,7 +93,7 @@ static int drop_permissions = 0;

 /* --------------------------- PAM functions -------------------------------- */

 /* this function ripped from pam_unix/support.c */

-int converse(pam_handle_t * pamh,

+static int converse(pam_handle_t * pamh,

              int nargs,

              struct pam_message **message, struct pam_response **response)

 {

@@ -115,7 +115,7 @@ int converse(pam_handle_t * pamh,

 /* this function ripped from pam_unix/support.c */

-int _set_auth_tok(pam_handle_t * pamh, int flags, int argc, const char **argv)

+static int _set_auth_tok(pam_handle_t * pamh, int flags, int argc, const char **argv)

 {

     int retval;

     char *p;

@@ -159,7 +159,7 @@ int _set_auth_tok(pam_handle_t * pamh, int flags, int argc, const char **argv)

     return PAM_SUCCESS;

 }

-int waitpid_timeout(pid_t pid, int *status, int options)

+static int waitpid_timeout(pid_t pid, int *status, int options)

 {

     pid_t retval;

     int i = 0;

@@ -176,7 +176,7 @@ int waitpid_timeout(pid_t pid, int *status, int options)

     return 0;

 }

-int is_dir(const char *path)

+static int is_dir(const char *path)

 {

     struct stat statbuf;

     if ((stat(path,&statbuf) == 0) && (S_ISDIR(statbuf.st_mode) == 1)) {

@@ -185,7 +185,7 @@ int is_dir(const char *path)

     return 0;

 }

-int checkmnt(const char *targetpath)

+static int checkmnt(const char *targetpath)

 {

     FILE *f = setmntent("/etc/mtab", "r");

     struct mntent *m;

@@ -220,7 +220,7 @@ void searchAndReplace(char *line)

     while (str != NULL);

 }

-int buildCmd(char *arg[], int pos, char *line)

+static int buildCmd(char *arg[], int pos, char *line)

 {

     int orig_pos = pos;

@@ -255,7 +255,7 @@ const char *getHome(struct passwd *pwd, pam_handle_t * pamh)

         return tmp;

 }

-int readconfig(struct passwd *pwd, pam_handle_t * pamh, const char *user,

+static int readconfig(struct passwd *pwd, pam_handle_t * pamh, const char *user,

                char *path, char *targetpath, char *encfs_options,

                char *fuse_options)

 {