add --enable-more-warnings=yes/no and fix up resulting errors

configure.in

@@ -26,6 +26,35 @@ AC_SUBST(DBUS_SYS_DIR)
 GLIB_GENMARSHAL=`pkg-config --variable=glib_genmarshal glib-2.0`
 AC_SUBST(GLIB_GENMARSHAL)
 
+AC_ARG_ENABLE(more-warnings,
+AS_HELP_STRING([--enable-more-warnings], [Maximum compiler warnings]), set_more_warnings="$enableval",set_more_warnings=yes)
+AC_MSG_CHECKING(for more warnings, including -Werror)
+if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
+	AC_MSG_RESULT(yes)
+	CFLAGS="-Wall -Werror -std=gnu89 $CFLAGS"
+
+	for option in -Wshadow -Wmissing-declarations -Wmissing-prototypes \
+		      -Wdeclaration-after-statement -Wstrict-prototypes \
+		      -Wfloat-equal -Wno-unused-parameter -Wno-sign-compare \
+		      -fno-strict-aliasing; do
+		SAVE_CFLAGS="$CFLAGS"
+		CFLAGS="$CFLAGS $option"
+		AC_MSG_CHECKING([whether gcc understands $option])
+		AC_TRY_COMPILE([], [],
+			has_option=yes,
+			has_option=no,)
+		if test $has_option = no; then
+			CFLAGS="$SAVE_CFLAGS"
+		fi
+		AC_MSG_RESULT($has_option)
+		unset has_option
+		unset SAVE_CFLAGS
+	done
+	unset option
+else
+	AC_MSG_RESULT(no)
+fi
+
 AC_ARG_WITH(docs, AC_HELP_STRING([--with-docs], [Build ModemManager documentation]))
 AM_CONDITIONAL(WITH_DOCS, test "x$with_docs" = "xyes")
 case $with_docs in

plugins/mm-modem-hso.c

@@ -254,7 +254,7 @@ modem_enable_done (MMSerial *serial,
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -263,7 +263,7 @@ enable (MMModem *modem,
     info = mm_callback_info_new (modem, callback, user_data);
     mm_callback_info_set_data (info, "enable", GINT_TO_POINTER (enable), NULL);
 
-    if (enable)
+    if (do_enable)
         modem_enable_done (MM_SERIAL (modem), NULL, NULL, info);
     else
         mm_serial_queue_command (MM_SERIAL (modem), "AT_OWANCALL=1,0,0", 3, modem_enable_done, info);
@@ -325,28 +325,29 @@ get_ip4_config_done (MMSerial *serial,
     dns_array = g_array_sized_new (FALSE, TRUE, sizeof (guint32), 2);
     items = g_strsplit (response->str + strlen (OWANDATA_TAG), ", ", 0);
 
-	for (iter = items, i = 0; *iter; iter++, i++) {
+    for (iter = items, i = 0; *iter; iter++, i++) {
-		if (i == 0) { /* CID */
+        if (i == 0) { /* CID */
-			long int tmp;
+            long int num;
 
-			errno = 0;
+            errno = 0;
-			tmp = strtol (*iter, NULL, 10);
+            num = strtol (*iter, NULL, 10);
-			if (errno != 0 || tmp < 0 || (guint) tmp != cid) {
+            if (errno != 0 || num < 0 || (guint) num != cid) {
-				info->error = g_error_new (MM_MODEM_ERROR, MM_MODEM_ERROR_GENERAL,
+                info->error = g_error_new (MM_MODEM_ERROR, MM_MODEM_ERROR_GENERAL,
-                                           "Unknown CID in OWANDATA response (got %d, expected %d)", (guint) tmp, cid);
+                                           "Unknown CID in OWANDATA response ("
-				break;
+                                           "got %d, expected %d)", (guint) num, cid);
-			}
+                break;
-		} else if (i == 1) { /* IP address */
+            }
-			if (inet_pton (AF_INET, *iter, &tmp) > 0)
+        } else if (i == 1) { /* IP address */
+            if (inet_pton (AF_INET, *iter, &tmp) > 0)
                 mm_callback_info_set_data (info, "ip4-address", GUINT_TO_POINTER (tmp), NULL);
-		} else if (i == 3) { /* DNS 1 */
+        } else if (i == 3) { /* DNS 1 */
-			if (inet_pton (AF_INET, *iter, &tmp) > 0)
+            if (inet_pton (AF_INET, *iter, &tmp) > 0)
-				g_array_append_val (dns_array, tmp);
+                g_array_append_val (dns_array, tmp);
-		} else if (i == 4) { /* DNS 2 */
+        } else if (i == 4) { /* DNS 2 */
-			if (inet_pton (AF_INET, *iter, &tmp) > 0)
+            if (inet_pton (AF_INET, *iter, &tmp) > 0)
-				g_array_append_val (dns_array, tmp);
+                g_array_append_val (dns_array, tmp);
-		}
+        }
-	}
+    }
 
     g_strfreev (items);
     mm_callback_info_set_data (info, "ip4-dns", dns_array, free_dns_array);

plugins/mm-modem-huawei.c

@@ -128,7 +128,7 @@ parent_enable_done (MMModem *modem, GError *error, gpointer user_data)
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -136,14 +136,14 @@ enable (MMModem *modem,
 
     parent_modem_iface = g_type_interface_peek_parent (MM_MODEM_GET_INTERFACE (modem));
 
-    if (enable) {
+    if (do_enable) {
         MMCallbackInfo *info;
 
         info = mm_callback_info_new (modem, callback, user_data);
-        parent_modem_iface->enable (modem, enable, parent_enable_done, info);
+        parent_modem_iface->enable (modem, do_enable, parent_enable_done, info);
     } else {
         pending_registration_stop (MM_MODEM_HUAWEI (modem));
-        parent_modem_iface->enable (modem, enable, callback, user_data);
+        parent_modem_iface->enable (modem, do_enable, callback, user_data);
     }
 }
 

plugins/mm-modem-mbm.c

@@ -234,7 +234,7 @@ disable_flash_done (MMSerial *serial, gpointer user_data)
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -245,7 +245,7 @@ enable (MMModem *modem,
 
     info = mm_callback_info_new (modem, callback, user_data);
 
-    if (!enable) {
+    if (!do_enable) {
         if (mm_serial_is_connected (MM_SERIAL (modem)))
             mm_serial_flash (MM_SERIAL (modem), 1000, disable_flash_done, info);
         else

plugins/mm-modem-novatel.c

@@ -97,7 +97,7 @@ disable_flash_done (MMSerial *serial, gpointer user_data)
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -108,7 +108,7 @@ enable (MMModem *modem,
 
     info = mm_callback_info_new (modem, callback, user_data);
 
-    if (!enable) {
+    if (!do_enable) {
         if (mm_serial_is_connected (MM_SERIAL (modem)))
             mm_serial_flash (MM_SERIAL (modem), 1000, disable_flash_done, info);
         else

plugins/mm-modem-option.c

@@ -65,7 +65,7 @@ parent_enable_done (MMModem *modem, GError *error, gpointer user_data)
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -73,10 +73,10 @@ enable (MMModem *modem,
     MMCallbackInfo *info;
 
     info = mm_callback_info_new (modem, callback, user_data);
-    mm_callback_info_set_data (info, "option-enable", GINT_TO_POINTER (enable), NULL);
+    mm_callback_info_set_data (info, "option-enable", GINT_TO_POINTER (do_enable), NULL);
 
     parent_modem_iface = g_type_interface_peek_parent (MM_MODEM_GET_INTERFACE (modem));
-    parent_modem_iface->enable (modem, enable, parent_enable_done, info);
+    parent_modem_iface->enable (modem, do_enable, parent_enable_done, info);
 }
 
 static void

plugins/mm-modem-sierra.c

@@ -82,7 +82,7 @@ disable_flash_done (MMSerial *serial, gpointer user_data)
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -92,9 +92,9 @@ enable (MMModem *modem,
     mm_generic_gsm_set_cid (MM_GENERIC_GSM (modem), 0);
 
     info = mm_callback_info_new (modem, callback, user_data);
-    mm_callback_info_set_data (info, "sierra-enable", GINT_TO_POINTER (enable), NULL);
+    mm_callback_info_set_data (info, "sierra-enable", GINT_TO_POINTER (do_enable), NULL);
 
-    if (!enable) {
+    if (!do_enable) {
         if (mm_serial_is_connected (MM_SERIAL (modem)))
             mm_serial_flash (MM_SERIAL (modem), 1000, disable_flash_done, info);
         else

plugins/mm-plugin-hso.h

@@ -23,4 +23,6 @@ typedef struct {
 
 GType mm_plugin_hso_get_type (void);
 
+G_MODULE_EXPORT MMPlugin *mm_plugin_create (void);
+
 #endif /* MM_PLUGIN_HSO_H */

plugins/mm-plugin-huawei.h

@@ -23,4 +23,6 @@ typedef struct {
 
 GType mm_plugin_huawei_get_type (void);
 
+G_MODULE_EXPORT MMPlugin *mm_plugin_create (void);
+
 #endif /* MM_PLUGIN_HUAWEI_H */

plugins/mm-plugin-mbm.h

@@ -45,4 +45,6 @@ typedef struct {
 
 GType mm_plugin_mbm_get_type (void);
 
+G_MODULE_EXPORT MMPlugin *mm_plugin_create (void);
+
 #endif /* MM_PLUGIN_MBM_H */

plugins/mm-plugin-novatel.h

@@ -23,4 +23,6 @@ typedef struct {
 
 GType mm_plugin_novatel_get_type (void);
 
+G_MODULE_EXPORT MMPlugin *mm_plugin_create (void);
+
 #endif /* MM_PLUGIN_NOVATEL_H */

plugins/mm-plugin-option.h

@@ -23,4 +23,6 @@ typedef struct {
 
 GType mm_plugin_option_get_type (void);
 
+G_MODULE_EXPORT MMPlugin *mm_plugin_create (void);
+
 #endif /* MM_PLUGIN_OPTION_H */

plugins/mm-plugin-sierra.h

@@ -23,4 +23,6 @@ typedef struct {
 
 GType mm_plugin_sierra_get_type (void);
 
+G_MODULE_EXPORT MMPlugin *mm_plugin_create (void);
+
 #endif /* MM_PLUGIN_SIERRA_H */

src/main.c

@@ -1,5 +1,6 @@
 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
+#include <signal.h>
 #include <syslog.h>
 #include <dbus/dbus-glib.h>
 #include "mm-manager.h"

src/mm-generic-cdma.c

@@ -77,7 +77,7 @@ flash_done (MMSerial *serial, gpointer user_data)
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -85,7 +85,7 @@ enable (MMModem *modem,
 
     info = mm_callback_info_new (modem, callback, user_data);
 
-    if (!enable) {
+    if (!do_enable) {
         mm_serial_close (MM_SERIAL (modem));
         mm_callback_info_schedule (info);
         return;

src/mm-generic-gsm.c

@@ -192,7 +192,7 @@ disable_flash_done (MMSerial *serial, gpointer user_data)
 
 static void
 enable (MMModem *modem,
-        gboolean enable,
+        gboolean do_enable,
         MMModemFn callback,
         gpointer user_data)
 {
@@ -203,7 +203,7 @@ enable (MMModem *modem,
 
     info = mm_callback_info_new (modem, callback, user_data);
 
-    if (!enable) {
+    if (!do_enable) {
         if (mm_serial_is_connected (MM_SERIAL (modem)))
             mm_serial_flash (MM_SERIAL (modem), 1000, disable_flash_done, info);
         else

src/mm-modem-simple.c

@@ -85,7 +85,7 @@ impl_modem_simple_connect (MMModemSimple *self,
 }
 
 static void
-get_status_done (MMModem *modem, 
+get_status_done (MMModemSimple *modem,
                  GHashTable *properties,
                  GError *error,
                  gpointer user_data)

src/mm-serial-parsers.c

@@ -93,7 +93,8 @@ mm_serial_parser_v0_parse (gpointer data,
         if (str) {
             code = atoi (str);
             g_free (str);
-        }
+        } else
+            code = MM_MOBILE_ERROR_UNKNOWN;
 
         g_match_info_free (match_info);