Index: libconfig.c
==================================================================
--- libconfig.c
+++ libconfig.c
@@ -770,10 +770,13 @@
 
 int lc_process_var(const char *var, const char *varargs, const char *value, lc_flags_t flags) {
 	struct lc_varhandler_st *handler = NULL;
 	const char *lastcomponent_handler = NULL, *lastcomponent_var = NULL;
 
+	lc_errno = LC_ERR_NONE;
+	lc_err_usererrmsg = NULL;
+
 	lastcomponent_var = strrchr(var, '.');
 	if (lastcomponent_var == NULL) {
 		lastcomponent_var = var;
 	} else {
 		lastcomponent_var++;
@@ -819,10 +822,13 @@
 }
 
 int lc_register_callback(const char *var, char opt, lc_var_type_t type, int (*callback)(const char *, const char *, const char *, const char *, lc_flags_t, void *), void *extra) {
 	struct lc_varhandler_st *newhandler = NULL;
 
+	lc_errno = LC_ERR_NONE;
+	lc_err_usererrmsg = NULL;
+
 	newhandler = malloc(sizeof(*newhandler));
 
 	if (newhandler == NULL) {
 		return(-1);
 	}
@@ -845,10 +851,13 @@
 }
 
 int lc_register_var(const char *var, lc_var_type_t type, void *data, char opt) {
 	struct lc_varhandler_st *newhandler = NULL;
 
+	lc_errno = LC_ERR_NONE;
+	lc_err_usererrmsg = NULL;
+
 	newhandler = malloc(sizeof(*newhandler));
 
 	if (newhandler == NULL) {
 		return(-1);
 	}
@@ -871,10 +880,13 @@
 }
 
 int lc_process_file(const char *appname, const char *pathname, lc_conf_type_t type) {
 	int chkretval = 0;
 
+	lc_errno = LC_ERR_NONE;
+	lc_err_usererrmsg = NULL;
+
 	switch (type) {
 		case LC_CONF_SECTION:
 			chkretval = lc_process_conf_section(appname, pathname);
 			break;
 		case LC_CONF_APACHE:
@@ -968,10 +980,13 @@
 }
 
 void lc_cleanup(void) {
 	struct lc_varhandler_st *handler = NULL, *next = NULL;
 
+	lc_errno = LC_ERR_NONE;
+	lc_err_usererrmsg = NULL;
+
 	handler = varhandlers;
 	while (handler != NULL) {
 		if (handler->var != NULL) {
 			free(handler->var);
 		}
@@ -1022,12 +1037,10 @@
 lc_err_t lc_geterrno(void) {
 	lc_err_t retval;
 
 	retval = lc_errno;
 
-	lc_errno = LC_ERR_NONE;
-
 	return(retval);
 }
 
 void lc_seterrstr(const char *usererrmsg) {
 	lc_err_usererrmsg = strdup(usererrmsg);