Merge pull request #85 from dgl/werror

Make configure checks able to build with -Werror

configure.ac

@@ -221,7 +221,7 @@ AC_CACHE_VAL(irssi_cv_type_socklen_t,
 [AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <sys/socket.h>],
-[socklen_t t;],
+[socklen_t t = 0; return((int)t); ],
 irssi_cv_type_socklen_t=yes,
 irssi_cv_type_socklen_t=no,
 )])
@@ -455,8 +455,10 @@ if test "$want_perl" != "no"; then
 		esac
 
 		dnl * check that perl's ldflags actually work
-		echo "main(){perl_alloc(); return 0;}" > conftest.c
-		$CC $CFLAGS conftest.c -o conftest $LDFLAGS $PERL_LDFLAGS 2> perl.error.tmp > /dev/null
+		echo "#include <EXTERN.h>" > conftest.c
+		echo "#include <perl.h>" >> conftest.c
+		echo "int main(){perl_alloc(); return 0;}" >> conftest.c
+		$CC $CFLAGS $PERL_CFLAGS conftest.c -o conftest $LDFLAGS $PERL_LDFLAGS 2> perl.error.tmp > /dev/null
 		if test ! -s conftest -a "x$ignore_perl_errors" = "x"; then
 			perl_check_error="Error linking with perl libraries: $PERL_LDFLAGS: `cat perl.error.tmp`"
 			AC_MSG_RESULT([error linking with perl libraries, building without Perl])
@@ -626,7 +628,7 @@ if test "x$want_ipv6" = "xyes"; then
 	#include <netinet/in.h>
 	#include <netdb.h>
 	#include <arpa/inet.h>],
-	[struct in6_addr i;],
+	[struct in6_addr i = in6addr_any; return &i == &i;],
 	have_ipv6=yes,
 	)])
 	if test $have_ipv6 = yes; then

src/core/commands.c

@@ -968,7 +968,9 @@ static void cmd_cd(const char *data)
 	if (*data == '\0') return;
 
 	str = convert_home(data);
-	chdir(str);
+	if (chdir(str) != 0) {
+		g_warning("Failed to chdir(): %s", strerror(errno));
+	}
 	g_free(str);
 }
 

src/core/network.c

@@ -60,7 +60,11 @@ GIOChannel *g_io_channel_new(int handle)
 
 IPADDR ip4_any = {
 	AF_INET,
-	{ { { INADDR_ANY } } }
+#if defined(HAVE_IPV6) && defined(IN6ADDR_ANY_INIT)
+	IN6ADDR_ANY_INIT
+#else
+	{ INADDR_ANY }
+#endif
 };
 
 int net_ip_compare(IPADDR *ip1, IPADDR *ip2)

src/core/rawlog.c

@@ -102,10 +102,15 @@ void rawlog_redirect(RAWLOG_REC *rawlog, const char *str)
 static void rawlog_dump(RAWLOG_REC *rawlog, int f)
 {
 	GSList *tmp;
+	ssize_t ret = 1;
 
-	for (tmp = rawlog->lines; tmp != NULL; tmp = tmp->next) {
-		write(f, tmp->data, strlen((char *) tmp->data));
-		write(f, "\n", 1);
+	for (tmp = rawlog->lines; ret && tmp != NULL; tmp = tmp->next) {
+		ret = write(f, tmp->data, strlen((char *) tmp->data));
+		ret &= write(f, "\n", 1);
+	}
+
+	if (ret <= 0) {
+		g_warning("rawlog write() failed: %s", strerror(errno));
 	}
 }
 

src/core/write-buffer.c

@@ -107,7 +107,9 @@ static int write_buffer_flush_rec(void *handlep, BUFFER_REC *rec)
 	for (tmp = rec->blocks; tmp != NULL; tmp = tmp->next) {
 		size = tmp->data != rec->active_block ? BUFFER_BLOCK_SIZE :
 			rec->active_block_pos;
-		write(handle, tmp->data, size);
+		if (write(handle, tmp->data, size) != size) {
+			g_warning("Failed to write(): %s", strerror(errno));
+		}
 	}
 
         empty_blocks = g_slist_concat(empty_blocks, rec->blocks);

src/fe-text/gui-entry.c

@@ -452,7 +452,7 @@ void gui_entry_insert_text(GUI_ENTRY_REC *entry, const char *str)
 		g_utf8_validate(str, -1, &ptr);
 		len = g_utf8_pointer_to_offset(str, ptr);
 	} else if (term_type == TERM_TYPE_BIG5)
-		len = strlen_big5(str);
+		len = strlen_big5((const unsigned char *)str);
 	else
 		len = strlen(str);
         entry_text_grow(entry, len);

src/fe-text/term-terminfo.c

@@ -140,7 +140,7 @@ int term_init(void)
 
         term_set_input_type(TERM_TYPE_8BIT);
 	term_common_init();
-        g_atexit(term_deinit);
+        atexit(term_deinit);
         return TRUE;
 }
 
@@ -575,7 +575,7 @@ void term_stop(void)
 
 static int input_utf8(const unsigned char *buffer, int size, unichar *result)
 {
-	unichar c = g_utf8_get_char_validated(buffer, size);
+	unichar c = g_utf8_get_char_validated((char *)buffer, size);
 
 	switch (c) {
 	case (unichar)-1:

src/fe-text/textbuffer-view.c

@@ -179,14 +179,14 @@ static void unformat_24bit_line_color(const unsigned char **ptr, int off, int *f
 
 static inline unichar read_unichar(const unsigned char *data, const unsigned char **next, int *width)
 {
-	unichar chr = g_utf8_get_char_validated(data, -1);
+	unichar chr = g_utf8_get_char_validated((const char *) data, -1);
 
 	if (chr & 0x80000000) {
 		chr = 0xfffd;
 		*next = data + 1;
 		*width = 1;
 	} else {
-		*next = g_utf8_next_char(data);
+		*next = (unsigned char *)g_utf8_next_char(data);
 		*width = unichar_isprint(chr) ? mk_wcwidth(chr) : 1;
 	}
 	return chr;

src/perl/textui/Statusbar.xs

@@ -50,7 +50,6 @@ static void perl_statusbar_event(char *function, SBAR_ITEM_REC *item,
 				 int get_size_only)
 {
 	dSP;
-	int retcount;
 	SV *item_sv, **sv;
         HV *hv;
 
@@ -63,7 +62,7 @@ static void perl_statusbar_event(char *function, SBAR_ITEM_REC *item,
 	XPUSHs(sv_2mortal(newSViv(get_size_only)));
 	PUTBACK;
 
-	retcount = perl_call_pv(function, G_EVAL|G_DISCARD);
+	perl_call_pv(function, G_EVAL|G_DISCARD);
 	SPAGAIN;
 
 	if (SvTRUE(ERRSV)) {