Replace deprecated g_str[n]casecmp with g_ascii_str[n]cmp.

63 files changed, 168 insertions, 160 deletions

diff --git a/src/core/channels-setup.c b/src/core/channels-setup.c
index 9e2908a8..e1289c23 100644
--- a/src/core/channels-setup.c
+++ b/src/core/channels-setup.c
@@ -102,7 +102,7 @@ CHANNEL_SETUP_REC *channel_setup_find(const char *channel,
 	for (tmp = setupchannels; tmp != NULL; tmp = tmp->next) {
 		CHANNEL_SETUP_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, channel) == 0 &&
+		if (g_ascii_strcasecmp(rec->name, channel) == 0 &&
 		    channel_chatnet_match(rec->chatnet, chatnet))
 			return rec;
 	}
diff --git a/src/core/channels-setup.h b/src/core/channels-setup.h
index 423bccb2..61b828b2 100644
--- a/src/core/channels-setup.h
+++ b/src/core/channels-setup.h
@@ -26,6 +26,6 @@ CHANNEL_SETUP_REC *channel_setup_find(const char *channel,
 
 #define channel_chatnet_match(rec, chatnet) \
 	((rec) == NULL || (rec)[0] == '\0' || \
-	 ((chatnet) != NULL && g_strcasecmp(rec, chatnet) == 0))
+	 ((chatnet) != NULL && g_ascii_strcasecmp(rec, chatnet) == 0))
 
 #endif
diff --git a/src/core/channels.c b/src/core/channels.c
index 907d363b..8235a4c7 100644
--- a/src/core/channels.c
+++ b/src/core/channels.c
@@ -110,7 +110,7 @@ static CHANNEL_REC *channel_find_server(SERVER_REC *server,
 	for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 		CHANNEL_REC *rec = tmp->data;
 
-		if (g_strcasecmp(name, rec->name) == 0)
+		if (g_ascii_strcasecmp(name, rec->name) == 0)
 			return rec;
 	}
 
diff --git a/src/core/chat-commands.c b/src/core/chat-commands.c
index c128439d..535bf9f8 100644
--- a/src/core/chat-commands.c
+++ b/src/core/chat-commands.c
@@ -178,7 +178,7 @@ static RECONNECT_REC *find_reconnect_server(int chat_type,
 
 		if (rec->conn->chat_type == chat_type) {
 			count++; last_proto_match = rec;
-			if (g_strcasecmp(rec->conn->address, addr) == 0) {
+			if (g_ascii_strcasecmp(rec->conn->address, addr) == 0) {
 				if (rec->conn->port == port)
 					return rec;
 				match = rec;
diff --git a/src/core/chat-protocols.c b/src/core/chat-protocols.c
index ef22dc5c..ee15c087 100644
--- a/src/core/chat-protocols.c
+++ b/src/core/chat-protocols.c
@@ -59,7 +59,7 @@ CHAT_PROTOCOL_REC *chat_protocol_find(const char *name)
 	for (tmp = chat_protocols; tmp != NULL; tmp = tmp->next) {
 		CHAT_PROTOCOL_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, name) == 0)
+		if (g_ascii_strcasecmp(rec->name, name) == 0)
 			return rec;
 	}
 
diff --git a/src/core/chatnets.c b/src/core/chatnets.c
index 376fab58..3c794ab4 100644
--- a/src/core/chatnets.c
+++ b/src/core/chatnets.c
@@ -105,7 +105,7 @@ CHATNET_REC *chatnet_find(const char *name)
 	for (tmp = chatnets; tmp != NULL; tmp = tmp->next) {
 		CHATNET_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, name) == 0)
+		if (g_ascii_strcasecmp(rec->name, name) == 0)
 			return rec;
 	}
 
diff --git a/src/core/commands.c b/src/core/commands.c
index 1b811bc4..547f7b16 100644
--- a/src/core/commands.c
+++ b/src/core/commands.c
@@ -47,7 +47,7 @@ COMMAND_REC *command_find(const char *cmd)
 	for (tmp = commands; tmp != NULL; tmp = tmp->next) {
 		COMMAND_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->cmd, cmd) == 0)
+		if (g_ascii_strcasecmp(rec->cmd, cmd) == 0)
 			return rec;
 	}
 
@@ -65,7 +65,7 @@ static COMMAND_MODULE_REC *command_module_find(COMMAND_REC *rec,
 	for (tmp = rec->modules; tmp != NULL; tmp = tmp->next) {
 		COMMAND_MODULE_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, module) == 0)
+		if (g_ascii_strcasecmp(rec->name, module) == 0)
 			return rec;
 	}
 
@@ -110,7 +110,7 @@ int command_have_sub(const char *command)
 	for (tmp = commands; tmp != NULL; tmp = tmp->next) {
 		COMMAND_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->cmd, command, len) == 0 &&
+		if (g_ascii_strncasecmp(rec->cmd, command, len) == 0 &&
 		    rec->cmd[len] == ' ')
 			return TRUE;
 	}
@@ -265,7 +265,7 @@ static const char *command_expand(char *cmd)
 	for (tmp = commands; tmp != NULL; tmp = tmp->next) {
 		COMMAND_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->cmd, cmd, len) == 0 &&
+		if (g_ascii_strncasecmp(rec->cmd, cmd, len) == 0 &&
 		    strchr(rec->cmd+len, ' ') == NULL) {
 			if (rec->cmd[len] == '\0') {
 				/* full match */
@@ -345,7 +345,7 @@ static GSList *optlist_find(GSList *optlist, const char *option)
 		char *name = optlist->data;
 		if (iscmdtype(*name)) name++;
 
-		if (g_strcasecmp(name, option) == 0)
+		if (g_ascii_strcasecmp(name, option) == 0)
 			return optlist;
 
 		optlist = optlist->next;
@@ -371,7 +371,7 @@ int command_have_option(const char *cmd, const char *option)
 	for (tmp = rec->options; *tmp != NULL; tmp++) {
 		char *name = iscmdtype(**tmp) ? (*tmp)+1 : *tmp;
 
-		if (g_strcasecmp(name, option) == 0)
+		if (g_ascii_strcasecmp(name, option) == 0)
 			return TRUE;
 	}
 
@@ -531,7 +531,7 @@ static int option_find(char **array, const char *option)
 	for (tmp = array; *tmp != NULL; tmp++, index++) {
 		const char *text = *tmp + iscmdtype(**tmp);
 
-		if (g_strncasecmp(text, option, len) == 0) {
+		if (g_ascii_strncasecmp(text, option, len) == 0) {
 			if (text[len] == '\0') {
 				/* full match */
 				return index;
diff --git a/src/core/ignore.c b/src/core/ignore.c
index ef7221b7..a7aa106f 100644
--- a/src/core/ignore.c
+++ b/src/core/ignore.c
@@ -115,7 +115,7 @@ static int ignore_match_pattern(IGNORE_REC *rec, const char *text)
 
 #define ignore_match_server(rec, server) \
 	((rec)->servertag == NULL || \
-	g_strcasecmp((server)->tag, (rec)->servertag) == 0)
+	g_ascii_strcasecmp((server)->tag, (rec)->servertag) == 0)
 
 int ignore_check(SERVER_REC *server, const char *nick, const char *host,
 		 const char *channel, const char *text, int level)
@@ -198,14 +198,14 @@ IGNORE_REC *ignore_find(const char *servertag, const char *mask,
 			    (servertag != NULL && rec->servertag == NULL))
 				continue;
 
-			if (servertag != NULL && g_strcasecmp(servertag, rec->servertag) != 0)
+			if (servertag != NULL && g_ascii_strcasecmp(servertag, rec->servertag) != 0)
 				continue;
 		}
 
 		if ((rec->mask == NULL && mask != NULL) ||
 		    (rec->mask != NULL && mask == NULL)) continue;
 
-		if (rec->mask != NULL && g_strcasecmp(rec->mask, mask) != 0)
+		if (rec->mask != NULL && g_ascii_strcasecmp(rec->mask, mask) != 0)
 			continue;
 
 		if ((channels == NULL && rec->channels == NULL))
diff --git a/src/core/log.c b/src/core/log.c
index 106aafb8..263b3526 100644
--- a/src/core/log.c
+++ b/src/core/log.c
@@ -247,7 +247,7 @@ static int itemcmp(const char *patt, const char *item)
 
 	if (!strcmp(patt, "*"))
 		return 0;
-        return item ? g_strcasecmp(patt, item) : 1;
+        return item ? g_ascii_strcasecmp(patt, item) : 1;
 }
 
 LOG_ITEM_REC *log_item_find(LOG_REC *log, int type, const char *item,
@@ -262,7 +262,7 @@ LOG_ITEM_REC *log_item_find(LOG_REC *log, int type, const char *item,
 
 		if (rec->type == type && itemcmp(rec->name, item) == 0 &&
 		    (rec->servertag == NULL || (servertag != NULL &&
-		    	g_strcasecmp(rec->servertag, servertag) == 0)))
+		    g_ascii_strcasecmp(rec->servertag, servertag) == 0)))
 			return rec;
 	}
 
diff --git a/src/core/masks.c b/src/core/masks.c
index 92318765..cc28b3bf 100644
--- a/src/core/masks.c
+++ b/src/core/masks.c
@@ -57,7 +57,7 @@ static int check_mask(SERVER_REC *server, const char *mask,
 	}
 
 	return wildcards ? match_wildcards(mask, str) :
-		g_strcasecmp(mask, str) == 0;
+		g_ascii_strcasecmp(mask, str) == 0;
 }
 
 int mask_match(SERVER_REC *server, const char *mask,
@@ -117,7 +117,7 @@ int masks_match(SERVER_REC *server, const char *masks,
 	mask = g_strdup_printf("%s!%s", nick, address);
 	list = g_strsplit(masks, " ", -1);
 	for (tmp = list; *tmp != NULL; tmp++) {
-		if (g_strcasecmp(*tmp, nick) == 0) {
+		if (g_ascii_strcasecmp(*tmp, nick) == 0) {
                         found = TRUE;
 			break;
 		}
diff --git a/src/core/misc.c b/src/core/misc.c
index 7c930e3f..8d821ecc 100644
--- a/src/core/misc.c
+++ b/src/core/misc.c
@@ -140,7 +140,7 @@ int find_substr(const char *list, const char *item)
 		ptr = strchr(list, ' ');
 		if (ptr == NULL) ptr = list+strlen(list);
 
-		if (g_strncasecmp(list, item, ptr-list) == 0 &&
+		if (g_ascii_strncasecmp(list, item, ptr-list) == 0 &&
 		    item[ptr-list] == '\0')
 			return TRUE;
 
@@ -174,7 +174,7 @@ int strarray_find(char **array, const char *item)
 
 	index = 0;
 	for (tmp = array; *tmp != NULL; tmp++, index++) {
-		if (g_strcasecmp(*tmp, item) == 0)
+		if (g_ascii_strcasecmp(*tmp, item) == 0)
 			return index;
 	}
 
@@ -192,7 +192,7 @@ GSList *gslist_find_string(GSList *list, const char *key)
 GSList *gslist_find_icase_string(GSList *list, const char *key)
 {
 	for (list = list; list != NULL; list = list->next)
-		if (g_strcasecmp(list->data, key) == 0) return list;
+		if (g_ascii_strcasecmp(list->data, key) == 0) return list;
 
 	return NULL;
 }
@@ -277,7 +277,7 @@ GList *glist_find_string(GList *list, const char *key)
 GList *glist_find_icase_string(GList *list, const char *key)
 {
 	for (list = list; list != NULL; list = list->next)
-		if (g_strcasecmp(list->data, key) == 0) return list;
+		if (g_ascii_strcasecmp(list->data, key) == 0) return list;
 
 	return NULL;
 }
@@ -443,12 +443,12 @@ char *convert_home(const char *path)
 
 int g_istr_equal(gconstpointer v, gconstpointer v2)
 {
-	return g_strcasecmp((const char *) v, (const char *) v2) == 0;
+	return g_ascii_strcasecmp((const char *) v, (const char *) v2) == 0;
 }
 
 int g_istr_cmp(gconstpointer v, gconstpointer v2)
 {
-	return g_strcasecmp((const char *) v, (const char *) v2);
+	return g_ascii_strcasecmp((const char *) v, (const char *) v2);
 }
 
 /* a char* hash function from ASU */
diff --git a/src/core/modules.c b/src/core/modules.c
index 6dfbd5f8..b002819b 100644
--- a/src/core/modules.c
+++ b/src/core/modules.c
@@ -237,7 +237,7 @@ MODULE_REC *module_find(const char *name)
 	for (tmp = modules; tmp != NULL; tmp = tmp->next) {
 		MODULE_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, name) == 0)
+		if (g_ascii_strcasecmp(rec->name, name) == 0)
 			return rec;
 	}
 
diff --git a/src/core/nicklist.c b/src/core/nicklist.c
index c38df6d4..d6590261 100644
--- a/src/core/nicklist.c
+++ b/src/core/nicklist.c
@@ -291,7 +291,7 @@ static void get_nicks_same_hash(gpointer key, NICK_REC *nick,
 				NICKLIST_GET_SAME_REC *rec)
 {
 	while (nick != NULL) {
-		if (g_strcasecmp(nick->nick, rec->nick) == 0) {
+		if (g_ascii_strcasecmp(nick->nick, rec->nick) == 0) {
 			rec->list = g_slist_append(rec->list, rec->channel);
 			rec->list = g_slist_append(rec->list, nick);
 		}
@@ -365,7 +365,7 @@ int nicklist_compare(NICK_REC *p1, NICK_REC *p2, const char *nick_prefix)
 	if (p2 == NULL) return 1;
 
 	if (p1->prefixes[0] == p2->prefixes[0])
-		return g_strcasecmp(p1->nick, p2->nick);
+		return g_ascii_strcasecmp(p1->nick, p2->nick);
 
 	if (!p1->prefixes[0])
 		return 1;
@@ -384,7 +384,7 @@ int nicklist_compare(NICK_REC *p1, NICK_REC *p2, const char *nick_prefix)
 	}
 
 	/* we should never have gotten here... */
-	return g_strcasecmp(p1->nick, p2->nick);
+	return g_ascii_strcasecmp(p1->nick, p2->nick);
 }
 
 static void nicklist_update_flags_list(SERVER_REC *server, int gone,
@@ -516,7 +516,8 @@ int nick_match_msg(CHANNEL_REC *channel, const char *msg, const char *nick)
 
 	/* first check for identical match */
 	len = strlen(nick);
-	if (g_strncasecmp(msg, nick, len) == 0 && !isalnumhigh((int) msg[len]))
+	if (g_ascii_strncasecmp(msg, nick, len) == 0 &&
+	    !isalnumhigh((int) msg[len]))
 		return TRUE;
 
 	orignick = nick;
diff --git a/src/core/queries.c b/src/core/queries.c
index fd51fbb8..a2fd4b0a 100644
--- a/src/core/queries.c
+++ b/src/core/queries.c
@@ -97,7 +97,7 @@ static QUERY_REC *query_find_server(SERVER_REC *server, const char *nick)
 	for (tmp = server->queries; tmp != NULL; tmp = tmp->next) {
 		QUERY_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, nick) == 0)
+		if (g_ascii_strcasecmp(rec->name, nick) == 0)
 			return rec;
 	}
 
@@ -117,7 +117,7 @@ QUERY_REC *query_find(SERVER_REC *server, const char *nick)
 	for (tmp = queries; tmp != NULL; tmp = tmp->next) {
 		QUERY_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, nick) == 0)
+		if (g_ascii_strcasecmp(rec->name, nick) == 0)
 			return rec;
 	}
 
diff --git a/src/core/servers-reconnect.c b/src/core/servers-reconnect.c
index 15f9f354..0a08b461 100644
--- a/src/core/servers-reconnect.c
+++ b/src/core/servers-reconnect.c
@@ -208,7 +208,7 @@ server_connect_copy_skeleton(SERVER_CONNECT_REC *src, int connect_info)
 
 #define sserver_connect_ok(rec, net) \
 	(!(rec)->banned && (rec)->chatnet != NULL && \
-	g_strcasecmp((rec)->chatnet, (net)) == 0)
+	g_ascii_strcasecmp((rec)->chatnet, (net)) == 0)
 
 static void sig_reconnect(SERVER_REC *server)
 {
@@ -283,7 +283,7 @@ static void sig_reconnect(SERVER_REC *server)
 		SERVER_SETUP_REC *rec = tmp->data;
 
 		if (!use_next && server->connrec->port == rec->port &&
-		    g_strcasecmp(rec->address, server->connrec->address) == 0)
+		    g_ascii_strcasecmp(rec->address, server->connrec->address) == 0)
 			use_next = TRUE;
 		else if (use_next && sserver_connect_ok(rec, conn->chatnet)) {
 			if (rec == sserver)
diff --git a/src/core/servers-setup.c b/src/core/servers-setup.c
index fcb0180b..0819ff1a 100644
--- a/src/core/servers-setup.c
+++ b/src/core/servers-setup.c
@@ -282,7 +282,7 @@ create_chatnet_conn(const char *dest, int port,
 		SERVER_SETUP_REC *rec = tmp->data;
 
 		if (rec->chatnet == NULL ||
-		    g_strcasecmp(rec->chatnet, dest) != 0)
+		    g_ascii_strcasecmp(rec->chatnet, dest) != 0)
 			continue;
 
 		if (!rec->last_failed) {
@@ -342,9 +342,9 @@ SERVER_SETUP_REC *server_setup_find(const char *address, int port,
 	for (tmp = setupservers; tmp != NULL; tmp = tmp->next) {
 		SERVER_SETUP_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->address, address) == 0 &&
+		if (g_ascii_strcasecmp(rec->address, address) == 0 &&
 		    (chatnet == NULL || rec->chatnet == NULL ||
-		     g_strcasecmp(rec->chatnet, chatnet) == 0)) {
+		     g_ascii_strcasecmp(rec->chatnet, chatnet) == 0)) {
 			server = rec;
 			if (rec->port == port)
 				break;
diff --git a/src/core/servers.c b/src/core/servers.c
index eb2be4de..4dac2b83 100644
--- a/src/core/servers.c
+++ b/src/core/servers.c
@@ -553,7 +553,7 @@ SERVER_REC *server_find_tag(const char *tag)
 	for (tmp = servers; tmp != NULL; tmp = tmp->next) {
 		SERVER_REC *server = tmp->data;
 
-		if (g_strcasecmp(server->tag, tag) == 0)
+		if (g_ascii_strcasecmp(server->tag, tag) == 0)
 			return server;
 	}
 
@@ -570,7 +570,7 @@ SERVER_REC *server_find_lookup_tag(const char *tag)
 	for (tmp = lookup_servers; tmp != NULL; tmp = tmp->next) {
 		SERVER_REC *server = tmp->data;
 
-		if (g_strcasecmp(server->tag, tag) == 0)
+		if (g_ascii_strcasecmp(server->tag, tag) == 0)
 			return server;
 	}
 
@@ -588,7 +588,7 @@ SERVER_REC *server_find_chatnet(const char *chatnet)
 		SERVER_REC *server = tmp->data;
 
 		if (server->connrec->chatnet != NULL &&
-		    g_strcasecmp(server->connrec->chatnet, chatnet) == 0)
+		    g_ascii_strcasecmp(server->connrec->chatnet, chatnet) == 0)
 			return server;
 	}
 
diff --git a/src/fe-common/core/chat-completion.c b/src/fe-common/core/chat-completion.c
index a25f63c6..d3e018ad 100644
--- a/src/fe-common/core/chat-completion.c
+++ b/src/fe-common/core/chat-completion.c
@@ -57,7 +57,7 @@ static LAST_MSG_REC *last_msg_find(GSList *list, const char *nick)
 	while (list != NULL) {
 		LAST_MSG_REC *rec = list->data;
 
-		if (g_strcasecmp(rec->nick, nick) == 0)
+		if (g_ascii_strcasecmp(rec->nick, nick) == 0)
 			return rec;
 		list = list->next;
 	}
@@ -269,7 +269,7 @@ static void completion_msg_server(GSList **list, SERVER_REC *server,
 	for (; tmp != NULL; tmp = tmp->next) {
 		LAST_MSG_REC *rec = tmp->data;
 
-		if (len != 0 && g_strncasecmp(rec->nick, nick, len) != 0)
+		if (len != 0 && g_ascii_strncasecmp(rec->nick, nick, len) != 0)
 			continue;
 
 		msg = g_new(LAST_MSG_REC, 1);
@@ -352,7 +352,7 @@ static void complete_from_nicklist(GList **outlist, CHANNEL_REC *channel,
 	for (tmp = mchannel->lastmsgs; tmp != NULL; tmp = tmp->next) {
 		LAST_MSG_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->nick, nick, len) == 0 &&
+		if (g_ascii_strncasecmp(rec->nick, nick, len) == 0 &&
 		    glist_find_icase_string(*outlist, rec->nick) == NULL) {
 			str = g_strconcat(rec->nick, suffix, NULL);
 			if (completion_lowercase) ascii_strdown(str);
@@ -404,7 +404,7 @@ static GList *completion_nicks_nonstrict(CHANNEL_REC *channel,
                 *out = '\0';
 
 		/* add to list if 'cleaned' nick matches */
-		if (g_strncasecmp(str, nick, len) == 0) {
+		if (g_ascii_strncasecmp(str, nick, len) == 0) {
 			tnick = g_strconcat(rec->nick, suffix, NULL);
 			if (completion_lowercase)
 				ascii_strdown(tnick);
@@ -447,7 +447,7 @@ static GList *completion_channel_nicks(CHANNEL_REC *channel, const char *nick,
 	for (tmp = nicks; tmp != NULL; tmp = tmp->next) {
 		NICK_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->nick, nick, len) == 0 &&
+		if (g_ascii_strncasecmp(rec->nick, nick, len) == 0 &&
 		    rec != channel->ownnick) {
 			str = g_strconcat(rec->nick, suffix, NULL);
 			if (completion_lowercase)
@@ -501,7 +501,7 @@ GList *completion_get_servertags(const char *word)
 	for (tmp = servers; tmp != NULL; tmp = tmp->next) {
 		SERVER_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->tag, word, len) == 0) {
+		if (g_ascii_strncasecmp(rec->tag, word, len) == 0) {
 			if (rec == active_win->active_server)
 				list = g_list_prepend(list, g_strdup(rec->tag));
 			else
@@ -529,9 +529,9 @@ GList *completion_get_channels(SERVER_REC *server, const char *word)
 	for (; tmp != NULL; tmp = tmp->next) {
 		CHANNEL_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->visible_name, word, len) == 0)
+		if (g_ascii_strncasecmp(rec->visible_name, word, len) == 0)
 			list = g_list_append(list, g_strdup(rec->visible_name));
-		else if (g_strncasecmp(rec->name, word, len) == 0)
+		else if (g_ascii_strncasecmp(rec->name, word, len) == 0)
 			list = g_list_append(list, g_strdup(rec->name));
 	}
 
@@ -539,7 +539,7 @@ GList *completion_get_channels(SERVER_REC *server, const char *word)
 	for (tmp = setupchannels; tmp != NULL; tmp = tmp->next) {
 		CHANNEL_SETUP_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->name, word, len) == 0 &&
+		if (g_ascii_strncasecmp(rec->name, word, len) == 0 &&
 		    glist_find_icase_string(list, rec->name) == NULL)
 			list = g_list_append(list, g_strdup(rec->name));
 
@@ -569,7 +569,7 @@ GList *completion_get_aliases(const char *word)
 		if (node->type != NODE_TYPE_KEY)
 			continue;
 
-		if (len != 0 && g_strncasecmp(node->key, word, len) != 0)
+		if (len != 0 && g_ascii_strncasecmp(node->key, word, len) != 0)
 			continue;
 
 		list = g_list_append(list, g_strdup(node->key));
@@ -655,7 +655,7 @@ static void sig_complete_word(GList **list, WINDOW_REC *window,
 	channel = CHANNEL(window->active);
 	query = QUERY(window->active);
 	if (channel == NULL && query != NULL &&
-	    g_strncasecmp(word, query->name, strlen(word)) == 0) {
+	    g_ascii_strncasecmp(word, query->name, strlen(word)) == 0) {
 		/* completion in query */
                 *list = g_list_append(*list, g_strdup(query->name));
 	} else if (channel != NULL) {
@@ -737,7 +737,7 @@ static void sig_erase_complete_msg(WINDOW_REC *window, const char *word,
 		for (tmp = mserver->lastmsgs; tmp != NULL; tmp = tmp->next) {
 			LAST_MSG_REC *rec = tmp->data;
 
-			if (g_strcasecmp(rec->nick, word) == 0) {
+			if (g_ascii_strcasecmp(rec->nick, word) == 0) {
 				last_msg_destroy(&mserver->lastmsgs, rec);
                                 break;
 			}
@@ -760,7 +760,7 @@ GList *completion_get_chatnets(const char *word)
 	for (tmp = chatnets; tmp != NULL; tmp = tmp->next) {
 		CHATNET_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->name, word, len) == 0)
+		if (g_ascii_strncasecmp(rec->name, word, len) == 0)
 			list = g_list_append(list, g_strdup(rec->name));
 	}
 
@@ -781,7 +781,7 @@ GList *completion_get_servers(const char *word)
 	for (tmp = setupservers; tmp != NULL; tmp = tmp->next) {
 		SERVER_SETUP_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->address, word, len) == 0) 
+		if (g_ascii_strncasecmp(rec->address, word, len) == 0) 
 			list = g_list_append(list, g_strdup(rec->address));
 	}
 
@@ -809,7 +809,7 @@ GList *completion_get_targets(const char *word)
 		if (node->type != NODE_TYPE_KEY)
 			continue;
 
-		if (len != 0 && g_strncasecmp(node->key, word, len) != 0)
+		if (len != 0 && g_ascii_strncasecmp(node->key, word, len) != 0)
 			continue;
 
 		list = g_list_append(list, g_strdup(node->key));
@@ -929,9 +929,9 @@ static void sig_complete_window(GList **list, WINDOW_REC *window,
 		win = tmp->data;
 		item = win->active;
 
-		if (win->name != NULL && g_strncasecmp(win->name, word, len) == 0)
+		if (win->name != NULL && g_ascii_strncasecmp(win->name, word, len) == 0)
 			*list = g_list_append(*list, g_strdup(win->name));
-		if (item != NULL && g_strncasecmp(item->visible_name, word, len) == 0)
+		if (item != NULL && g_ascii_strncasecmp(item->visible_name, word, len) == 0)
 			*list = g_list_append(*list, g_strdup(item->visible_name));
 	}
 
diff --git a/src/fe-common/core/command-history.c b/src/fe-common/core/command-history.c
index 9ca0eca6..afe19aa7 100644
--- a/src/fe-common/core/command-history.c
+++ b/src/fe-common/core/command-history.c
@@ -79,7 +79,8 @@ HISTORY_REC *command_history_find_name(const char *name)
 	for (tmp = histories; tmp != NULL; tmp = tmp->next) {
 		HISTORY_REC *rec = tmp->data;
 		
-		if (rec->name != NULL && g_strcasecmp(rec->name, name) == 0)
+		if (rec->name != NULL &&
+		    g_ascii_strcasecmp(rec->name, name) == 0)
 			return rec;
 	}
 	
diff --git a/src/fe-common/core/completion.c b/src/fe-common/core/completion.c
index 91115e61..db21fcb8 100644
--- a/src/fe-common/core/completion.c
+++ b/src/fe-common/core/completion.c
@@ -362,7 +362,7 @@ static GList *completion_get_settings(const char *key, SettingType type)
 		SETTINGS_REC *rec = tmp->data;
 
 		if ((type == -1 || rec->type == type) &&
-		    g_strncasecmp(rec->key, key, len) == 0)
+		    g_ascii_strncasecmp(rec->key, key, len) == 0)
 			complist = g_list_insert_sorted(complist, g_strdup(rec->key), (GCompareFunc) g_istr_cmp);
 	}
 	g_slist_free(sets);
@@ -391,7 +391,7 @@ static GList *completion_get_aliases(const char *alias, char cmdchar)
 		if (node->type != NODE_TYPE_KEY)
 			continue;
 
-		if (g_strncasecmp(node->key, alias, len) == 0) {
+		if (g_ascii_strncasecmp(node->key, alias, len) == 0) {
 			word = g_strdup_printf("%c%s", cmdchar, node->key);
 			/* add matching alias to completion list, aliases will
 			   be appended after command completions and kept in
@@ -422,7 +422,7 @@ static GList *completion_get_commands(const char *cmd, char cmdchar)
 		if (strchr(rec->cmd, ' ') != NULL)
 			continue;
 
-		if (g_strncasecmp(rec->cmd, cmd, len) == 0) {
+		if (g_ascii_strncasecmp(rec->cmd, cmd, len) == 0) {
 			word = cmdchar == '\0' ? g_strdup(rec->cmd) :
 				g_strdup_printf("%c%s", cmdchar, rec->cmd);
 			if (glist_find_icase_string(complist, word) == NULL)
@@ -459,7 +459,7 @@ static GList *completion_get_subcommands(const char *cmd)
 		if (strchr(rec->cmd+len, ' ') != NULL)
 			continue;
 
-		if (g_strncasecmp(rec->cmd, cmd, len) == 0)
+		if (g_ascii_strncasecmp(rec->cmd, cmd, len) == 0)
 			complist = g_list_insert_sorted(complist, g_strdup(rec->cmd+skip), (GCompareFunc) g_istr_cmp);
 	}
 	return complist;
@@ -483,7 +483,7 @@ static GList *completion_get_options(const char *cmd, const char *option)
 	for (tmp = rec->options; *tmp != NULL; tmp++) {
 		const char *optname = *tmp + iscmdtype(**tmp);
 
-		if (len == 0 || g_strncasecmp(optname, option, len) == 0)
+		if (len == 0 || g_ascii_strncasecmp(optname, option, len) == 0)
                         list = g_list_append(list, g_strconcat("-", optname, NULL));
 	}
 
@@ -805,7 +805,7 @@ static void cmd_completion(const char *data)
 			node = tmp->data;
 
 			if (len == 0 ||
-			    g_strncasecmp(node->key, key, len) == 0) {
+			    g_ascii_strncasecmp(node->key, key, len) == 0) {
 				printformat(NULL, NULL, MSGLEVEL_CLIENTCRAP,
 					    TXT_COMPLETION_LINE, node->key,
 					    config_node_get_str(node, "value", ""),
diff --git a/src/fe-common/core/fe-core-commands.c b/src/fe-common/core/fe-core-commands.c
index 0302cbfa..31a5ca9b 100644
--- a/src/fe-common/core/fe-core-commands.c
+++ b/src/fe-common/core/fe-core-commands.c
@@ -292,7 +292,7 @@ static void event_list_subcommands(const char *command)
 	for (tmp = commands; tmp != NULL; tmp = tmp->next) {
 		COMMAND_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->cmd, command, len) == 0 &&
+		if (g_ascii_strncasecmp(rec->cmd, command, len) == 0 &&
 		    rec->cmd[len] == ' ' &&
 		    strchr(rec->cmd+len+1, ' ') == NULL) {
                         g_string_append_printf(str, "%s ", rec->cmd+len+1);
diff --git a/src/fe-common/core/fe-help.c b/src/fe-common/core/fe-help.c
index b51b8949..4ea7c89f 100644
--- a/src/fe-common/core/fe-help.c
+++ b/src/fe-common/core/fe-help.c
@@ -194,11 +194,11 @@ static void show_help(const char *data)
 			items = 0;
 		}
 
-		if (last != NULL && g_strcasecmp(rec->cmd, last->cmd) == 0)
+		if (last != NULL && g_ascii_strcasecmp(rec->cmd, last->cmd) == 0)
 			continue; /* don't display same command twice */
 
 		if ((int)strlen(rec->cmd) >= findlen &&
-		    g_strncasecmp(rec->cmd, data, findlen) == 0) {
+		    g_ascii_strncasecmp(rec->cmd, data, findlen) == 0) {
 			if (rec->cmd[findlen] == '\0') {
 				fullmatch = TRUE;
 				found = TRUE;
diff --git a/src/fe-common/core/fe-ignore-messages.c b/src/fe-common/core/fe-ignore-messages.c
index 32e63260..fd889783 100644
--- a/src/fe-common/core/fe-ignore-messages.c
+++ b/src/fe-common/core/fe-ignore-messages.c
@@ -66,7 +66,7 @@ static void sig_message_kick(SERVER_REC *server, const char *channel,
 			     const char *address, const char *reason)
 {
         /* never ignore if you were kicked */
-	if (g_strcasecmp(nick, server->nick) != 0 &&
+	if (g_ascii_strcasecmp(nick, server->nick) != 0 &&
 	    ignore_check(server, kicker, address,
 			 channel, reason, MSGLEVEL_KICKS))
 		signal_stop();
diff --git a/src/fe-common/core/fe-log.c b/src/fe-common/core/fe-log.c
index 3008d0a7..5ee72d8b 100644
--- a/src/fe-common/core/fe-log.c
+++ b/src/fe-common/core/fe-log.c
@@ -375,7 +375,7 @@ static void sig_server_disconnected(SERVER_REC *server)
 		logitem = log->items->data;
 		if (logitem->type == LOG_ITEM_TARGET &&
 		    logitem->servertag != NULL &&
-		    g_strcasecmp(logitem->servertag, server->tag) == 0 &&
+		    g_ascii_strcasecmp(logitem->servertag, server->tag) == 0 &&
 		    server_ischannel(server, logitem->name)) /* kludge again.. so we won't close dcc chats */
 			log_close(log);
 	}
diff --git a/src/fe-common/core/fe-queries.c b/src/fe-common/core/fe-queries.c
index adf2b3d4..7599fb23 100644
--- a/src/fe-common/core/fe-queries.c
+++ b/src/fe-common/core/fe-queries.c
@@ -127,7 +127,7 @@ static void signal_query_nick_changed(QUERY_REC *query, const char *oldnick)
 			       query->name, MSGLEVEL_NICKS, NULL);
 
 	/* don't print the nick change message if only the case was changed */
-	if (g_strcasecmp(query->name, oldnick) != 0) {
+	if (g_ascii_strcasecmp(query->name, oldnick) != 0) {
 		printformat_dest(&dest,  TXT_NICK_CHANGED, oldnick,
 				 query->name, query->name,
 				 query->address == NULL ? "" : query->address);
@@ -160,7 +160,7 @@ static void sig_server_connected(SERVER_REC *server)
 
 		if (rec->server == NULL &&
 		    (rec->server_tag == NULL ||
-		     g_strcasecmp(rec->server_tag, server->tag) == 0)) {
+		     g_ascii_strcasecmp(rec->server_tag, server->tag) == 0)) {
 			window_item_change_server((WI_ITEM_REC *) rec, server);
 			server->queries = g_slist_append(server->queries, rec);
 		}
diff --git a/src/fe-common/core/fe-settings.c b/src/fe-common/core/fe-settings.c
index 59f136b2..96e03ceb 100644
--- a/src/fe-common/core/fe-settings.c
+++ b/src/fe-common/core/fe-settings.c
@@ -205,7 +205,7 @@ static void cmd_toggle(const char *data)
 
 static int config_key_compare(CONFIG_NODE *node1, CONFIG_NODE *node2)
 {
-	return g_strcasecmp(node1->key, node2->key);
+	return g_ascii_strcasecmp(node1->key, node2->key);
 }
 
 static void show_aliases(const char *alias)
@@ -228,7 +228,7 @@ static void show_aliases(const char *alias)
 		if (node->type != NODE_TYPE_KEY)
 			continue;
 
-		if (aliaslen != 0 && g_strncasecmp(node->key, alias, aliaslen) != 0)
+		if (aliaslen != 0 && g_ascii_strncasecmp(node->key, alias, aliaslen) != 0)
 			continue;
 
 		list = g_slist_insert_sorted(list, node, (GCompareFunc) config_key_compare);
diff --git a/src/fe-common/core/fe-windows.c b/src/fe-common/core/fe-windows.c
index 30df327b..aa5ea397 100644
--- a/src/fe-common/core/fe-windows.c
+++ b/src/fe-common/core/fe-windows.c
@@ -311,8 +311,8 @@ WINDOW_REC *window_find_closest(void *server, const char *name, int level)
 			   generic msgs window.
 
 	                   And check for prefixed !channel name --Borys  */
-			if (g_strcasecmp(name, item->visible_name) == 0 ||
-			    g_strcasecmp(name, (char *) window_item_get_target((WI_ITEM_REC *) item)) == 0)
+			if (g_ascii_strcasecmp(name, item->visible_name) == 0 ||
+			    g_ascii_strcasecmp(name, (char *) window_item_get_target((WI_ITEM_REC *) item)) == 0)
 				return namewindow;
 		}
 	}
@@ -362,7 +362,8 @@ WINDOW_REC *window_find_name(const char *name)
 	for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 		WINDOW_REC *rec = tmp->data;
 
-		if (rec->name != NULL && g_strcasecmp(rec->name, name) == 0)
+		if (rec->name != NULL &&
+		    g_ascii_strcasecmp(rec->name, name) == 0)
 			return rec;
 	}
 
@@ -510,8 +511,8 @@ WINDOW_BIND_REC *window_bind_find(WINDOW_REC *window, const char *servertag,
 	for (tmp = window->bound_items; tmp != NULL; tmp = tmp->next) {
 		WINDOW_BIND_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, name) == 0 &&
-		    g_strcasecmp(rec->servertag, servertag) == 0)
+		if (g_ascii_strcasecmp(rec->name, name) == 0 &&
+		    g_ascii_strcasecmp(rec->servertag, servertag) == 0)
                         return rec;
 	}
 
@@ -543,7 +544,7 @@ static void sig_server_connected(SERVER_REC *server)
 		WINDOW_REC *rec = tmp->data;
 
 		if ((rec->servertag == NULL ||
-		     g_strcasecmp(rec->servertag, server->tag) == 0) &&
+		     g_ascii_strcasecmp(rec->servertag, server->tag) == 0) &&
 		    (rec->active_server == NULL ||
 		     (rec == active_win && rec->items == NULL)))
 			window_change_server(rec, server);
diff --git a/src/fe-common/core/formats.c b/src/fe-common/core/formats.c
index 8fb2a6f0..f2a82030 100644
--- a/src/fe-common/core/formats.c
+++ b/src/fe-common/core/formats.c
@@ -55,7 +55,7 @@ int format_find_tag(const char *module, const char *tag)
 
 	for (n = 0; formats[n].def != NULL; n++) {
 		if (formats[n].tag != NULL &&
-		    g_strcasecmp(formats[n].tag, tag) == 0)
+		    g_ascii_strcasecmp(formats[n].tag, tag) == 0)
 			return n;
 	}
 
diff --git a/src/fe-common/core/hilight-text.c b/src/fe-common/core/hilight-text.c
index f501db93..34c5c643 100644
--- a/src/fe-common/core/hilight-text.c
+++ b/src/fe-common/core/hilight-text.c
@@ -161,7 +161,7 @@ static HILIGHT_REC *hilight_find(const char *text, char **channels)
 	for (tmp = hilights; tmp != NULL; tmp = tmp->next) {
 		HILIGHT_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->text, text) != 0)
+		if (g_ascii_strcasecmp(rec->text, text) != 0)
 			continue;
 
 		if ((channels == NULL && rec->channels == NULL))
diff --git a/src/fe-common/core/keyboard.c b/src/fe-common/core/keyboard.c
index 49bcd399..94c6bfd7 100644
--- a/src/fe-common/core/keyboard.c
+++ b/src/fe-common/core/keyboard.c
@@ -164,7 +164,7 @@ KEYINFO_REC *key_info_find(const char *id)
 	for (tmp = keyinfos; tmp != NULL; tmp = tmp->next) {
 		KEYINFO_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->id, id) == 0)
+		if (g_ascii_strcasecmp(rec->id, id) == 0)
 			return rec;
 	}
 
@@ -661,7 +661,7 @@ static void cmd_show_keys(const char *searchkey, int full)
 		for (key = rec->keys; key != NULL; key = key->next) {
 			KEY_REC *rec = key->data;
 
-			if ((len == 0 || g_strncasecmp(rec->key, searchkey, len) == 0) &&
+			if ((len == 0 || g_ascii_strncasecmp(rec->key, searchkey, len) == 0) &&
 			    (!full || rec->key[len] == '\0')) {
 				printformat(NULL, NULL, MSGLEVEL_CLIENTCRAP, TXT_BIND_LIST,
 					    rec->key, rec->info->id, rec->data == NULL ? "" : rec->data);
@@ -739,7 +739,7 @@ static GList *completion_get_keyinfos(const char *info)
 	for (tmp = keyinfos; tmp != NULL; tmp = tmp->next) {
 		KEYINFO_REC *rec = tmp->data;
 
-		if (g_strncasecmp(rec->id, info, len) == 0)
+		if (g_ascii_strncasecmp(rec->id, info, len) == 0)
                         list = g_list_append(list, g_strdup(rec->id));
 	}
 
diff --git a/src/fe-common/core/themes.c b/src/fe-common/core/themes.c
index 7c50c28c..a3a23c2d 100644
--- a/src/fe-common/core/themes.c
+++ b/src/fe-common/core/themes.c
@@ -799,7 +799,7 @@ static THEME_REC *theme_find(const char *name)
 	for (tmp = themes; tmp != NULL; tmp = tmp->next) {
 		THEME_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, name) == 0)
+		if (g_ascii_strcasecmp(rec->name, name) == 0)
 			return rec;
 	}
 
@@ -970,7 +970,7 @@ typedef struct {
 
 static int theme_search_equal(THEME_SEARCH_REC *r1, THEME_SEARCH_REC *r2)
 {
-	return g_strcasecmp(r1->short_name, r2->short_name);
+	return g_ascii_strcasecmp(r1->short_name, r2->short_name);
 }
 
 static void theme_get_modules(char *module, FORMAT_REC *formats, GSList **list)
@@ -1001,7 +1001,7 @@ static THEME_SEARCH_REC *theme_search(GSList *list, const char *module)
 	while (list != NULL) {
 		rec = list->data;
 
-		if (g_strcasecmp(rec->short_name, module) == 0)
+		if (g_ascii_strcasecmp(rec->short_name, module) == 0)
 			return rec;
 		list = list->next;
 	}
@@ -1026,7 +1026,7 @@ static void theme_show(THEME_SEARCH_REC *rec, const char *key, const char *value
 
 		if (formats[n].tag == NULL)
 			last_title = text;
-		else if ((value != NULL && key != NULL && g_strcasecmp(formats[n].tag, key) == 0) ||
+		else if ((value != NULL && key != NULL && g_ascii_strcasecmp(formats[n].tag, key) == 0) ||
 			 (value == NULL && (key == NULL || stristr(formats[n].tag, key) != NULL))) {
 			if (first) {
 				printformat(NULL, NULL, MSGLEVEL_CLIENTCRAP, TXT_FORMAT_TITLE, rec->short_name, formats[0].def);
@@ -1086,7 +1086,7 @@ static void cmd_format(const char *data)
 	for (tmp = modules; tmp != NULL; tmp = tmp->next) {
 		THEME_SEARCH_REC *rec = tmp->data;
 
-		if (module == NULL || g_strcasecmp(rec->short_name, module) == 0)
+		if (module == NULL || g_ascii_strcasecmp(rec->short_name, module) == 0)
 			theme_show(rec, key, value, reset);
 	}
 	g_slist_foreach(modules, (GFunc) g_free, NULL);
@@ -1207,7 +1207,7 @@ static void complete_format_list(THEME_SEARCH_REC *rec, const char *key, GList *
 	for (n = 1; formats[n].def != NULL; n++) {
 		const char *item = formats[n].tag;
 
-		if (item != NULL && g_strncasecmp(item, key, len) == 0)
+		if (item != NULL && g_ascii_strncasecmp(item, key, len) == 0)
                         *list = g_list_append(*list, g_strdup(item));
 	}
 }
@@ -1226,7 +1226,7 @@ static GList *completion_get_formats(const char *module, const char *key)
 		for (tmp = modules; tmp != NULL; tmp = tmp->next) {
 			THEME_SEARCH_REC *rec = tmp->data;
 
-			if (*module == '\0' || g_strcasecmp(rec->short_name, module) == 0)
+			if (*module == '\0' || g_ascii_strcasecmp(rec->short_name, module) == 0)
 				complete_format_list(rec, key, &list);
 		}
 	}
diff --git a/src/fe-common/core/window-items.c b/src/fe-common/core/window-items.c
index fcbbe2b1..303a80db 100644
--- a/src/fe-common/core/window-items.c
+++ b/src/fe-common/core/window-items.c
@@ -218,7 +218,7 @@ WI_ITEM_REC *window_item_find_window(WINDOW_REC *window,
 		WI_ITEM_REC *rec = tmp->data;
 
 		if ((server == NULL || rec->server == server) &&
-		    g_strcasecmp(name, rec->visible_name) == 0)
+		    g_ascii_strcasecmp(name, rec->visible_name) == 0)
 			return rec;
 	}
 
diff --git a/src/fe-common/irc/fe-events-numeric.c b/src/fe-common/irc/fe-events-numeric.c
index b6b6e8a8..d1cd12d4 100644
--- a/src/fe-common/irc/fe-events-numeric.c
+++ b/src/fe-common/irc/fe-events-numeric.c
@@ -336,8 +336,10 @@ static void event_away(IRC_SERVER_REC *server, const char *data)
 	params = event_get_params(data, 3, NULL, &nick, &awaymsg);
 	recoded = recode_in(SERVER(server), awaymsg, nick);
 	if (!settings_get_bool("show_away_once") ||
-	    last_away_nick == NULL || g_strcasecmp(last_away_nick, nick) != 0 ||
-	    last_away_msg == NULL || g_strcasecmp(last_away_msg, awaymsg) != 0) {
+	    last_away_nick == NULL ||
+	    g_ascii_strcasecmp(last_away_nick, nick) != 0 ||
+	    last_away_msg == NULL ||
+	    g_ascii_strcasecmp(last_away_msg, awaymsg) != 0) {
 		/* don't show the same away message
 		   from the same nick all the time */
 		g_free_not_null(last_away_nick);
diff --git a/src/fe-common/irc/fe-events.c b/src/fe-common/irc/fe-events.c
index a6fd8599..5cde9e4b 100644
--- a/src/fe-common/irc/fe-events.c
+++ b/src/fe-common/irc/fe-events.c
@@ -209,7 +209,7 @@ static void event_nick(IRC_SERVER_REC *server, const char *data,
 	params = event_get_params(data, 1, &newnick);
 
 	/* NOTE: server->nick was already changed in irc/core/irc-nicklist.c */
-	signal_emit(g_strcasecmp(newnick, server->nick) == 0 ?
+	signal_emit(g_ascii_strcasecmp(newnick, server->nick) == 0 ?
 		    "message own_nick" : "message nick", 4,
 		    server, newnick, sender, addr);
 
@@ -330,7 +330,7 @@ static void event_connected(IRC_SERVER_REC *server)
 	g_return_if_fail(server != NULL);
 
         nick = server->connrec->nick;
-	if (g_strcasecmp(server->nick, nick) == 0)
+	if (g_ascii_strcasecmp(server->nick, nick) == 0)
 		return;
 
 	/* someone has our nick, find out who. */
diff --git a/src/fe-common/irc/fe-irc-queries.c b/src/fe-common/irc/fe-irc-queries.c
index ec55a5db..0861c9e4 100644
--- a/src/fe-common/irc/fe-irc-queries.c
+++ b/src/fe-common/irc/fe-irc-queries.c
@@ -35,7 +35,7 @@ static QUERY_REC *query_find_address(SERVER_REC *server, const char *address)
 		QUERY_REC *rec = tmp->data;
 
 		if (*rec->name != '=' && rec->address != NULL &&
-		    g_strcasecmp(address, rec->address) == 0)
+		    g_ascii_strcasecmp(address, rec->address) == 0)
 			return rec;
 	}
 
diff --git a/src/fe-common/irc/fe-modes.c b/src/fe-common/irc/fe-modes.c
index 48a83515..027d7a76 100644
--- a/src/fe-common/irc/fe-modes.c
+++ b/src/fe-common/irc/fe-modes.c
@@ -184,7 +184,7 @@ static void sig_message_mode(IRC_SERVER_REC *server, const char *channel,
 		chanrec = !group_multi_mode ? NULL :
 			irc_channel_find(server, channel);
 
-		if (chanrec != NULL && g_strcasecmp(nick, server->nick) != 0)
+		if (chanrec != NULL && g_ascii_strcasecmp(nick, server->nick) != 0)
 			msg_multi_mode(chanrec, nick, addr, mode);
 		else {
 			printformat(server, channel, MSGLEVEL_MODES,
diff --git a/src/fe-common/irc/fe-netjoin.c b/src/fe-common/irc/fe-netjoin.c
index 35ee43f5..35c463e4 100644
--- a/src/fe-common/irc/fe-netjoin.c
+++ b/src/fe-common/irc/fe-netjoin.c
@@ -119,7 +119,7 @@ static NETJOIN_REC *netjoin_find(IRC_SERVER_REC *server, const char *nick)
 	for (tmp = srec->netjoins; tmp != NULL; tmp = tmp->next) {
 		NETJOIN_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->nick, nick) == 0)
+		if (g_ascii_strcasecmp(rec->nick, nick) == 0)
 			return rec;
 	}
 
diff --git a/src/fe-common/irc/fe-netsplit.c b/src/fe-common/irc/fe-netsplit.c
index 788f6d00..3eb30796 100644
--- a/src/fe-common/irc/fe-netsplit.c
+++ b/src/fe-common/irc/fe-netsplit.c
@@ -73,7 +73,7 @@ static GSList *get_source_servers(const char *server, GSList **servers)
 		NETSPLIT_SERVER_REC *rec = tmp->data;
 		next = tmp->next;
 
-		if (g_strcasecmp(rec->server, server) == 0) {
+		if (g_ascii_strcasecmp(rec->server, server) == 0) {
 			rec->prints = 0;
 			list = g_slist_append(list, rec);
 			*servers = g_slist_remove(*servers, rec);
@@ -91,7 +91,7 @@ static TEMP_SPLIT_CHAN_REC *find_split_chan(TEMP_SPLIT_REC *rec,
 	for (tmp = rec->channels; tmp != NULL; tmp = tmp->next) {
 		TEMP_SPLIT_CHAN_REC *chanrec = tmp->data;
 
-		if (g_strcasecmp(chanrec->name, name) == 0)
+		if (g_ascii_strcasecmp(chanrec->name, name) == 0)
 			return chanrec;
 	}
 
@@ -292,7 +292,7 @@ static void sig_netsplit_servers(void)
 
 static int split_equal(NETSPLIT_REC *n1, NETSPLIT_REC *n2)
 {
-        return g_strcasecmp(n1->nick, n2->nick);
+        return g_ascii_strcasecmp(n1->nick, n2->nick);
 }
 
 static void split_get(void *key, NETSPLIT_REC *rec, GSList **list)
diff --git a/src/irc/core/bans.c b/src/irc/core/bans.c
index 1d46acb8..de799812 100644
--- a/src/irc/core/bans.c
+++ b/src/irc/core/bans.c
@@ -150,7 +150,7 @@ void ban_remove(IRC_CHANNEL_REC *channel, const char *bans)
 
 		if (!found) {
 			rec = NULL;
-			if (!g_strcasecmp(*ban, BAN_LAST)) {
+			if (!g_ascii_strcasecmp(*ban, BAN_LAST)) {
 				/* unnbanning last set ban */
 				rec = g_slist_nth_data(channel->banlist,
 							g_slist_length(channel->banlist) - 1);
diff --git a/src/irc/core/channel-events.c b/src/irc/core/channel-events.c
index 7d4fbd39..9198ed82 100644
--- a/src/irc/core/channel-events.c
+++ b/src/irc/core/channel-events.c
@@ -199,7 +199,7 @@ static IRC_CHANNEL_REC *channel_find_unjoined(IRC_SERVER_REC *server,
 		if (!IS_IRC_CHANNEL(rec) || rec->joined)
 			continue;
 
-		if (g_strncasecmp(channel, rec->name, len) == 0 &&
+		if (g_ascii_strncasecmp(channel, rec->name, len) == 0 &&
 		    (len > 20 || rec->name[len] == '\0'))
 			return rec;
 	}
@@ -214,7 +214,7 @@ static void event_join(IRC_SERVER_REC *server, const char *data, const char *nic
 
 	g_return_if_fail(data != NULL);
 
-	if (g_strcasecmp(nick, server->nick) != 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) != 0) {
 		/* someone else joined channel, no need to do anything */
 		return;
 	}
@@ -286,7 +286,7 @@ static void event_part(IRC_SERVER_REC *server, const char *data, const char *nic
 
 	g_return_if_fail(data != NULL);
 
-	if (g_strcasecmp(nick, server->nick) != 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) != 0) {
 		/* someone else part, no need to do anything here */
 		return;
 	}
@@ -311,7 +311,7 @@ static void event_kick(IRC_SERVER_REC *server, const char *data)
 
 	params = event_get_params(data, 3, &channel, &nick, &reason);
 
-	if (g_strcasecmp(nick, server->nick) != 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) != 0) {
 		/* someone else was kicked, no need to do anything */
 		g_free(params);
 		return;
diff --git a/src/irc/core/channel-rejoin.c b/src/irc/core/channel-rejoin.c
index c9528edc..d518f0c2 100644
--- a/src/irc/core/channel-rejoin.c
+++ b/src/irc/core/channel-rejoin.c
@@ -58,7 +58,7 @@ static REJOIN_REC *rejoin_find(IRC_SERVER_REC *server, const char *channel)
 	for (tmp = server->rejoin_channels; tmp != NULL; tmp = tmp->next) {
                 REJOIN_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->channel, channel) == 0)
+		if (g_ascii_strcasecmp(rec->channel, channel) == 0)
                         return rec;
 	}
 
diff --git a/src/irc/core/ctcp.c b/src/irc/core/ctcp.c
index be2edba0..accbb57f 100644
--- a/src/irc/core/ctcp.c
+++ b/src/irc/core/ctcp.c
@@ -44,7 +44,7 @@ static CTCP_CMD_REC *ctcp_cmd_find(const char *name)
 	for (tmp = ctcp_cmds; tmp != NULL; tmp = tmp->next) {
 		CTCP_CMD_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, name) == 0)
+		if (g_ascii_strcasecmp(rec->name, name) == 0)
                         return rec;
 	}
 
diff --git a/src/irc/core/irc-commands.c b/src/irc/core/irc-commands.c
index 52a9a748..301b3300 100644
--- a/src/irc/core/irc-commands.c
+++ b/src/irc/core/irc-commands.c
@@ -418,7 +418,7 @@ static void cmd_whois(const char *data, IRC_SERVER_REC *server,
 		g_string_printf(tmpstr, "WHOIS %s", query);
 	else {
 		g_string_printf(tmpstr, "WHOIS %s %s", qserver, query);
-		if (g_strcasecmp(qserver, query) == 0)
+		if (g_ascii_strcasecmp(qserver, query) == 0)
 			event_402 = "whois event not found";
 	}
 
diff --git a/src/irc/core/irc-expandos.c b/src/irc/core/irc-expandos.c
index a1030624..5d2de503 100644
--- a/src/irc/core/irc-expandos.c
+++ b/src/irc/core/irc-expandos.c
@@ -116,7 +116,7 @@ static void event_join(IRC_SERVER_REC *server, const char *data,
 {
 	g_return_if_fail(nick != NULL);
 
-	if (g_strcasecmp(nick, server->nick) != 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) != 0) {
 		g_free_not_null(last_join);
 		last_join = g_strdup(nick);
 	}
diff --git a/src/irc/core/irc-nicklist.c b/src/irc/core/irc-nicklist.c
index 8a75233c..cbf8b9fa 100644
--- a/src/irc/core/irc-nicklist.c
+++ b/src/irc/core/irc-nicklist.c
@@ -342,9 +342,9 @@ static void event_nick_in_use(IRC_SERVER_REC *server, const char *data)
 	}
 
 	/* nick already in use - need to change it .. */
-	if (g_strcasecmp(server->nick, server->connrec->nick) == 0 &&
+	if (g_ascii_strcasecmp(server->nick, server->connrec->nick) == 0 &&
 	    server->connrec->alternate_nick != NULL &&
-	    g_strcasecmp(server->connrec->alternate_nick, server->nick) != 0) {
+	    g_ascii_strcasecmp(server->connrec->alternate_nick, server->nick) != 0) {
 		/* first try, so try the alternative nick.. */
 		g_free(server->nick);
 		server->nick = g_strdup(server->connrec->alternate_nick);
@@ -400,10 +400,10 @@ static void event_nick(IRC_SERVER_REC *server, const char *data,
 
 	params = event_get_params(data, 1, &nick);
 
-	if (g_strcasecmp(orignick, server->nick) == 0) {
+	if (g_ascii_strcasecmp(orignick, server->nick) == 0) {
 		/* You changed your nick */
 		if (server->last_nick != NULL &&
-		    g_strcasecmp(server->last_nick, nick) == 0) {
+		    g_ascii_strcasecmp(server->last_nick, nick) == 0) {
                         /* changed with /NICK - keep it as wanted nick */
 			g_free(server->connrec->nick);
 			server->connrec->nick = g_strdup(nick);
diff --git a/src/irc/core/irc-servers.c b/src/irc/core/irc-servers.c
index 23960a38..787044b3 100644
--- a/src/irc/core/irc-servers.c
+++ b/src/irc/core/irc-servers.c
@@ -90,7 +90,8 @@ static void send_message(SERVER_REC *server, const char *target,
 	if (*target == '!') {
 		/* !chan -> !12345chan */
 		channel = channel_find(server, target);
-		if (channel != NULL && g_strcasecmp(channel->name, target) != 0)
+		if (channel != NULL &&
+		    g_ascii_strcasecmp(channel->name, target) != 0)
 			target = channel->name;
 	}
 
diff --git a/src/irc/core/massjoin.c b/src/irc/core/massjoin.c
index 1322db7d..6cc2b7c7 100644
--- a/src/irc/core/massjoin.c
+++ b/src/irc/core/massjoin.c
@@ -42,7 +42,7 @@ static void event_join(IRC_SERVER_REC *server, const char *data,
 
 	g_return_if_fail(data != NULL);
 
-	if (g_strcasecmp(nick, server->nick) == 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) == 0) {
 		/* You joined, no need to do anything here */
 		return;
 	}
@@ -104,7 +104,7 @@ static void event_part(IRC_SERVER_REC *server, const char *data,
 
 	g_return_if_fail(data != NULL);
 
-	if (g_strcasecmp(nick, server->nick) == 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) == 0) {
 		/* you left channel, no need to do anything here */
 		return;
 	}
@@ -140,7 +140,7 @@ static void event_quit(IRC_SERVER_REC *server, const char *data,
 
 	g_return_if_fail(data != NULL);
 
-	if (g_strcasecmp(nick, server->nick) == 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) == 0) {
 		/* you quit, don't do anything here */
 		return;
 	}
@@ -171,7 +171,7 @@ static void event_kick(IRC_SERVER_REC *server, const char *data)
 
 	params = event_get_params(data, 3, &channel, &nick, &reason);
 
-	if (g_strcasecmp(nick, server->nick) == 0) {
+	if (g_ascii_strcasecmp(nick, server->nick) == 0) {
 		/* you were kicked, no need to do anything */
 		g_free(params);
 		return;
diff --git a/src/irc/core/mode-lists.c b/src/irc/core/mode-lists.c
index 875d25b9..73b7a6b2 100644
--- a/src/irc/core/mode-lists.c
+++ b/src/irc/core/mode-lists.c
@@ -53,7 +53,7 @@ BAN_REC *banlist_find(GSList *list, const char *ban)
 	for (tmp = list; tmp != NULL; tmp = tmp->next) {
 		BAN_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->ban, ban) == 0)
+		if (g_ascii_strcasecmp(rec->ban, ban) == 0)
 			return rec;
 	}
 
diff --git a/src/irc/core/modes.c b/src/irc/core/modes.c
index 3b1e7d21..7054182f 100644
--- a/src/irc/core/modes.c
+++ b/src/irc/core/modes.c
@@ -301,7 +301,7 @@ void modes_type_prefix(IRC_CHANNEL_REC *channel, const char *setby,
 {
 	int umode = (unsigned char) mode;
 
-	if (g_strcasecmp(channel->server->nick, arg) == 0) {
+	if (g_ascii_strcasecmp(channel->server->nick, arg) == 0) {
 		/* see if we need to update channel->chanop */
 		const char *prefix =
 			g_hash_table_lookup(channel->server->isupport, "PREFIX");
@@ -692,7 +692,7 @@ static int get_wildcard_nicks(GString *output, const char *mask,
 		    (voice == 1 && !rec->voice) || (voice == 0 && rec->voice))
 			continue;
 
-		if (g_strcasecmp(rec->nick, channel->server->nick) == 0)
+		if (g_ascii_strcasecmp(rec->nick, channel->server->nick) == 0)
 			continue;
 
 		g_string_append_printf(output, "%s ", rec->nick);
@@ -859,7 +859,7 @@ static void cmd_mode(const char *data, IRC_SERVER_REC *server,
 	} else if (ischannel(*target))
 		channel_set_mode(server, target, mode);
 	else {
-		if (g_strcasecmp(target, server->nick) == 0) {
+		if (g_ascii_strcasecmp(target, server->nick) == 0) {
 			server_redirect_event(server, "mode user", 1, target, -1, NULL,
 					      "event mode", "requested usermode change", NULL);
 		}
diff --git a/src/irc/core/netsplit.c b/src/irc/core/netsplit.c
index 706212ee..0642846f 100644
--- a/src/irc/core/netsplit.c
+++ b/src/irc/core/netsplit.c
@@ -43,8 +43,8 @@ static NETSPLIT_SERVER_REC *netsplit_server_find(IRC_SERVER_REC *server,
 	for (tmp = server->split_servers; tmp != NULL; tmp = tmp->next) {
 		NETSPLIT_SERVER_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->server, servername) == 0 &&
-		    g_strcasecmp(rec->destserver, destserver) == 0)
+		if (g_ascii_strcasecmp(rec->server, servername) == 0 &&
+		    g_ascii_strcasecmp(rec->destserver, destserver) == 0)
 			return rec;
 	}
 
@@ -191,7 +191,7 @@ NETSPLIT_REC *netsplit_find(IRC_SERVER_REC *server, const char *nick,
 	if (rec == NULL) return NULL;
 
 	return (address == NULL ||
-		g_strcasecmp(rec->address, address) == 0) ? rec : NULL;
+		g_ascii_strcasecmp(rec->address, address) == 0) ? rec : NULL;
 }
 
 NETSPLIT_CHAN_REC *netsplit_find_channel(IRC_SERVER_REC *server,
@@ -211,7 +211,7 @@ NETSPLIT_CHAN_REC *netsplit_find_channel(IRC_SERVER_REC *server,
 	for (tmp = rec->channels; tmp != NULL; tmp = tmp->next) {
 		NETSPLIT_CHAN_REC *rec = tmp->data;
 
-		if (g_strcasecmp(rec->name, channel) == 0)
+		if (g_ascii_strcasecmp(rec->name, channel) == 0)
 			return rec;
 	}
 
@@ -315,7 +315,7 @@ static void event_join(IRC_SERVER_REC *server, const char *data,
 	/* check if split is over */
 	rec = g_hash_table_lookup(server->splits, nick);
 
-	if (rec != NULL && g_strcasecmp(rec->address, address) == 0) {
+	if (rec != NULL && g_ascii_strcasecmp(rec->address, address) == 0) {
 		/* yep, looks like it is. for same people that had the same
 		   splitted servers set the timeout to one minute.
 
@@ -350,7 +350,7 @@ static void event_quit(IRC_SERVER_REC *server, const char *data,
 	g_return_if_fail(data != NULL);
 
 	if (*data == ':') data++;
-	if (g_strcasecmp(nick, server->nick) != 0 && quitmsg_is_split(data)) {
+	if (g_ascii_strcasecmp(nick, server->nick) != 0 && quitmsg_is_split(data)) {
 		/* netsplit! */
 		netsplit_add(server, nick, address, data);
 	}
diff --git a/src/irc/dcc/dcc-chat.c b/src/irc/dcc/dcc-chat.c
index b3950002..ad1442fc 100644
--- a/src/irc/dcc/dcc-chat.c
+++ b/src/irc/dcc/dcc-chat.c
@@ -103,7 +103,7 @@ CHAT_DCC_REC *dcc_chat_find_id(const char *id)
 		CHAT_DCC_REC *dcc = tmp->data;
 
 		if (IS_DCC_CHAT(dcc) && dcc->id != NULL &&
-		    g_strcasecmp(dcc->id, id) == 0)
+		    g_ascii_strcasecmp(dcc->id, id) == 0)
 			return dcc;
 	}
 
@@ -121,7 +121,7 @@ static CHAT_DCC_REC *dcc_chat_find_nick(IRC_SERVER_REC *server,
 		CHAT_DCC_REC *dcc = tmp->data;
 
 		if (IS_DCC_CHAT(dcc) && dcc->server == server &&
-		    g_strcasecmp(dcc->nick, nick) == 0)
+		    g_ascii_strcasecmp(dcc->nick, nick) == 0)
 			return dcc;
 	}
 
@@ -562,7 +562,7 @@ static void cmd_dcc_close(char *data, SERVER_REC *server)
 
 		next = tmp->next;
 		if (IS_DCC_CHAT(dcc) && dcc->id != NULL &&
-		    g_strcasecmp(dcc->id, nick) == 0) {
+		    g_ascii_strcasecmp(dcc->id, nick) == 0) {
 			found = TRUE;
 			if (!dcc_is_connected(dcc) && IS_IRC_SERVER(server))
 				dcc_reject(DCC(dcc), IRC_SERVER(server));
@@ -777,7 +777,7 @@ static void event_nick(IRC_SERVER_REC *server, const char *data,
 	g_return_if_fail(orignick != NULL);
 
 	params = event_get_params(data, 1, &nick);
-	if (g_strcasecmp(nick, orignick) == 0) {
+	if (g_ascii_strcasecmp(nick, orignick) == 0) {
 		/* shouldn't happen, but just to be sure irssi doesn't
 		   get into infinite loop */
                 g_free(params);
diff --git a/src/irc/dcc/dcc-get.c b/src/irc/dcc/dcc-get.c
index bdcd2424..3c88ff24 100644
--- a/src/irc/dcc/dcc-get.c
+++ b/src/irc/dcc/dcc-get.c
@@ -549,7 +549,7 @@ void cmd_dcc_receive(const char *data, DCC_GET_FUNC accept_func,
 		GET_DCC_REC *dcc = tmp->data;
 
 		next = tmp->next;
-		if (IS_DCC_GET(dcc) && g_strcasecmp(dcc->nick, nick) == 0 &&
+		if (IS_DCC_GET(dcc) && g_ascii_strcasecmp(dcc->nick, nick) == 0 &&
 		    (dcc_is_waiting_user(dcc) || dcc->from_dccserver) &&
 		    (*fname == '\0' || strcmp(dcc->arg, fname) == 0)) {
 			found = TRUE;
diff --git a/src/irc/dcc/dcc-queue.c b/src/irc/dcc/dcc-queue.c
index 65649848..895f9e44 100644
--- a/src/irc/dcc/dcc-queue.c
+++ b/src/irc/dcc/dcc-queue.c
@@ -47,11 +47,12 @@ int dcc_queue_old(const char *nick, const char *servertag)
 			if (rec == NULL)
 				continue;
 
-			if (*nick != '\0' && g_strcasecmp(nick, rec->nick) != 0)
+			if (*nick != '\0' &&
+			    g_ascii_strcasecmp(nick, rec->nick) != 0)
 				continue;
 
 			if (*servertag != '\0' &&
-			    g_strcasecmp(servertag, rec->servertag) != 0)
+			    g_ascii_strcasecmp(servertag, rec->servertag) != 0)
 				continue;
 
 			/* found a queue matching nick/server! */
diff --git a/src/irc/dcc/dcc-resume.c b/src/irc/dcc/dcc-resume.c
index 5a5a75a5..28871986 100644
--- a/src/irc/dcc/dcc-resume.c
+++ b/src/irc/dcc/dcc-resume.c
@@ -37,7 +37,8 @@ static FILE_DCC_REC *dcc_resume_find(int type, const char *nick, int port)
 		FILE_DCC_REC *dcc = tmp->data;
 
 		if (dcc->type == type && !dcc_is_connected(dcc) &&
-		    dcc->port == port && g_strcasecmp(dcc->nick, nick) == 0)
+		    dcc->port == port &&
+		    g_ascii_strcasecmp(dcc->nick, nick) == 0)
 			return dcc;
 	}
 
diff --git a/src/irc/dcc/dcc-send.c b/src/irc/dcc/dcc-send.c
index 78ccf01d..6d2b794d 100644
--- a/src/irc/dcc/dcc-send.c
+++ b/src/irc/dcc/dcc-send.c
@@ -180,7 +180,7 @@ static void cmd_dcc_send(const char *data, IRC_SERVER_REC *server,
 
 	chat = item_get_dcc(item);
 	if (chat != NULL &&
-	    (chat->mirc_ctcp || g_strcasecmp(nick, chat->nick) != 0))
+	    (chat->mirc_ctcp || g_ascii_strcasecmp(nick, chat->nick) != 0))
 		chat = NULL;
 
 	if (IS_IRC_SERVER(server) && server->connected)
diff --git a/src/irc/dcc/dcc.c b/src/irc/dcc/dcc.c
index a4bb774e..e4ee4b7c 100644
--- a/src/irc/dcc/dcc.c
+++ b/src/irc/dcc/dcc.c
@@ -148,7 +148,7 @@ DCC_REC *dcc_find_request(int type, const char *nick, const char *arg)
 		DCC_REC *dcc = tmp->data;
 
 		if (dcc->type == type && !dcc_is_connected(dcc) &&
-		    g_strcasecmp(dcc->nick, nick) == 0 &&
+		    g_ascii_strcasecmp(dcc->nick, nick) == 0 &&
 		    (arg == NULL || strcmp(dcc->arg, arg) == 0))
 			return dcc;
 	}
@@ -287,7 +287,7 @@ static void sig_connected(IRC_SERVER_REC *server)
 		DCC_REC *dcc = tmp->data;
 
 		if (dcc->server == NULL && dcc->servertag != NULL &&
-		    g_strcasecmp(dcc->servertag, server->tag) == 0) {
+		    g_ascii_strcasecmp(dcc->servertag, server->tag) == 0) {
 			dcc->server = server;
 			g_free(dcc->mynick);
 			dcc->mynick = g_strdup(server->nick);
@@ -479,7 +479,7 @@ static void event_no_such_nick(IRC_SERVER_REC *server, char *data)
 
 		next = tmp->next;
 		if (!dcc_is_connected(dcc) && dcc->server == server &&
-		    dcc->nick != NULL && g_strcasecmp(dcc->nick, nick) == 0)
+		    dcc->nick != NULL && g_ascii_strcasecmp(dcc->nick, nick) == 0)
 			dcc_close(dcc);
 	}
 
@@ -515,7 +515,7 @@ static void cmd_dcc_close(char *data, IRC_SERVER_REC *server)
 		DCC_REC *dcc = tmp->data;
 
 		next = tmp->next;
-		if (dcc->type == type && g_strcasecmp(dcc->nick, nick) == 0 &&
+		if (dcc->type == type && g_ascii_strcasecmp(dcc->nick, nick) == 0 &&
 		    (*arg == '\0' || strcmp(dcc->arg, arg) == 0)) {
 			dcc_reject(dcc, server);
 			found = TRUE;
diff --git a/src/irc/flood/flood.c b/src/irc/flood/flood.c
index 677d739b..29502ca6 100644
--- a/src/irc/flood/flood.c
+++ b/src/irc/flood/flood.c
@@ -172,7 +172,7 @@ static FLOOD_ITEM_REC *flood_find(FLOOD_REC *flood, int level,
 		FLOOD_ITEM_REC *rec = tmp->data;
 
 		if (rec->level == level &&
-		    g_strcasecmp(rec->target, target) == 0)
+		    g_ascii_strcasecmp(rec->target, target) == 0)
 			return rec;
 	}
 
@@ -245,7 +245,7 @@ static void flood_privmsg(IRC_SERVER_REC *server, const char *data,
 	g_return_if_fail(data != NULL);
 	g_return_if_fail(server != NULL);
 
-	if (addr == NULL || g_strcasecmp(nick, server->nick) == 0)
+	if (addr == NULL || g_ascii_strcasecmp(nick, server->nick) == 0)
 		return;
 
 	params = event_get_params(data, 2, &target, &text);
@@ -265,7 +265,7 @@ static void flood_notice(IRC_SERVER_REC *server, const char *data,
 	g_return_if_fail(data != NULL);
 	g_return_if_fail(server != NULL);
 
-	if (addr == NULL || g_strcasecmp(nick, server->nick) == 0)
+	if (addr == NULL || g_ascii_strcasecmp(nick, server->nick) == 0)
 		return;
 
 	params = event_get_params(data, 2, &target, &text);
@@ -283,7 +283,7 @@ static void flood_ctcp(IRC_SERVER_REC *server, const char *data,
 	g_return_if_fail(data != NULL);
 	g_return_if_fail(server != NULL);
 
-	if (addr == NULL || g_strcasecmp(nick, server->nick) == 0)
+	if (addr == NULL || g_ascii_strcasecmp(nick, server->nick) == 0)
 		return;
 
 	level = g_ascii_strncasecmp(data, "ACTION ", 7) != 0 ? MSGLEVEL_CTCPS :
diff --git a/src/irc/notifylist/notify-ison.c b/src/irc/notifylist/notify-ison.c
index 74bb4a94..f9ca7b37 100644
--- a/src/irc/notifylist/notify-ison.c
+++ b/src/irc/notifylist/notify-ison.c
@@ -69,7 +69,7 @@ NOTIFY_NICK_REC *notify_nick_find(IRC_SERVER_REC *server, const char *nick)
 	for (tmp = mserver->notify_users; tmp != NULL; tmp = tmp->next) {
 		rec = tmp->data;
 
-		if (g_strcasecmp(rec->nick, nick) == 0)
+		if (g_ascii_strcasecmp(rec->nick, nick) == 0)
 			return rec;
 	}
 
diff --git a/src/irc/notifylist/notifylist.c b/src/irc/notifylist/notifylist.c
index 467fa30a..b0b7ee1c 100644
--- a/src/irc/notifylist/notifylist.c
+++ b/src/irc/notifylist/notifylist.c
@@ -94,7 +94,7 @@ int notifylist_ircnets_match(NOTIFYLIST_REC *rec, const char *ircnet)
 	if (strcmp(ircnet, "*") == 0) return TRUE;
 
 	for (tmp = rec->ircnets; *tmp != NULL; tmp++) {
-		if (g_strcasecmp(*tmp, ircnet) == 0)
+		if (g_ascii_strcasecmp(*tmp, ircnet) == 0)
 			return TRUE;
 	}
 
@@ -113,7 +113,7 @@ NOTIFYLIST_REC *notifylist_find(const char *mask, const char *ircnet)
 		NOTIFYLIST_REC *rec = tmp->data;
 
 		/* check mask */
-		if (g_strncasecmp(rec->mask, mask, len) != 0 ||
+		if (g_ascii_strncasecmp(rec->mask, mask, len) != 0 ||
 		    (rec->mask[len] != '\0' && rec->mask[len] != '!')) continue;
 
 		/* check ircnet */
diff --git a/src/irc/proxy/listen.c b/src/irc/proxy/listen.c
index 4df315fd..5dfd46db 100644
--- a/src/irc/proxy/listen.c
+++ b/src/irc/proxy/listen.c
@@ -152,8 +152,8 @@ static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
 
 		params = event_get_params(args, 2, &origin, &target);
 		if (*target == '\0' ||
-		    g_strcasecmp(target, client->proxy_address) == 0 ||
-		    g_strcasecmp(target, client->nick) == 0) {
+		    g_ascii_strcasecmp(target, client->proxy_address) == 0 ||
+		    g_ascii_strcasecmp(target, client->nick) == 0) {
 			proxy_outdata(client, ":%s PONG %s :%s\n",
 				      client->proxy_address,
                                       client->proxy_address, origin);
@@ -169,7 +169,7 @@ static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
 			client->want_ctcp = 1;
 	                for (tmp = proxy_clients; tmp != NULL; tmp = tmp->next) {
 				CLIENT_REC *rec = tmp->data;
-				if ((g_strcasecmp(client->listen->ircnet,rec->listen->ircnet) == 0) &&
+				if ((g_ascii_strcasecmp(client->listen->ircnet,rec->listen->ircnet) == 0) &&
 					/* kludgy way to check if the clients aren't the same */
 					(client->recv_tag != rec->recv_tag)) {
 						if (rec->want_ctcp == 1)
@@ -463,7 +463,7 @@ static void event_connected(IRC_SERVER_REC *server)
 		if (rec->connected && rec->server == NULL &&
 		    (strcmp(rec->listen->ircnet, "*") == 0 ||
 		     (chatnet != NULL &&
-		      g_strcasecmp(chatnet, rec->listen->ircnet) == 0))) {
+		      g_ascii_strcasecmp(chatnet, rec->listen->ircnet) == 0))) {
 			proxy_outdata(rec, ":%s NOTICE %s :Connected to server\n",
 				      rec->proxy_address, rec->nick);
 			rec->server = server;
@@ -514,7 +514,7 @@ static void event_nick(IRC_SERVER_REC *server, const char *data,
 	if (!IS_IRC_SERVER(server))
 		return;
 
-	if (g_strcasecmp(orignick, server->nick) != 0)
+	if (g_ascii_strcasecmp(orignick, server->nick) != 0)
 		return;
 
 	if (*data == ':') data++;
@@ -566,7 +566,7 @@ static LISTEN_REC *find_listen(const char *ircnet, int port)
 		LISTEN_REC *rec = tmp->data;
 
 		if (rec->port == port &&
-		    g_strcasecmp(rec->ircnet, ircnet) == 0)
+		    g_ascii_strcasecmp(rec->ircnet, ircnet) == 0)
 			return rec;
 	}
 
diff --git a/src/lib-config/get.c b/src/lib-config/get.c
index c0f6a3dd..2f1e90e1 100644
--- a/src/lib-config/get.c
+++ b/src/lib-config/get.c
@@ -31,7 +31,7 @@ CONFIG_NODE *config_node_find(CONFIG_NODE *node, const char *key)
 	for (tmp = node->value; tmp != NULL; tmp = tmp->next) {
 		CONFIG_NODE *node = tmp->data;
 
-		if (node->key != NULL && g_strcasecmp(node->key, key) == 0)
+		if (node->key != NULL && g_ascii_strcasecmp(node->key, key) == 0)
 			return node;
 	}
 
diff --git a/src/lib-config/parse.c b/src/lib-config/parse.c
index 22832c07..1b20195a 100644
--- a/src/lib-config/parse.c
+++ b/src/lib-config/parse.c
@@ -22,7 +22,7 @@
 
 static int g_istr_equal(gconstpointer v, gconstpointer v2)
 {
-	return g_strcasecmp((const char *) v, (const char *) v2) == 0;
+	return g_ascii_strcasecmp((const char *) v, (const char *) v2) == 0;
 }
 
 /* a char* hash function from ASU */
diff --git a/src/perl/ui/Themes.xs b/src/perl/ui/Themes.xs
index ff025ee9..ebc8b69b 100644
--- a/src/perl/ui/Themes.xs
+++ b/src/perl/ui/Themes.xs
@@ -262,7 +262,7 @@ CODE:
 
 	for (i = 0; formats[i].def != NULL; i++) {
 		if (formats[i].tag != NULL &&
-		    g_strcasecmp(formats[i].tag, tag) == 0)
+		    g_ascii_strcasecmp(formats[i].tag, tag) == 0)
 			break;
 	}