fix up various compiler warnings found with gcc-4.3:

- the output of flex includes a static function called 'input' that is not used, so for the moment we'll stop having the compiler tell us about unused variables in the flex source files (a better fix would be to improve our flex post-processing to remove the unused function)

- main/stdtime/localtime.c makes assumptions about signed integer overflow, and gcc-4.3's improved optimizer tries to take advantage of handling potential overflow conditions at compile time; for now, suppress these optimizations until we can fiure out if the code needs improvement

- main/udptl.c has some references to uninitialized variables; in one case there was no bug, but in the other it was certainly possibly for unexpected behavior to occur

- main/editline/readline.c had an unused variable



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@107352 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/Makefile

@@ -113,6 +113,8 @@ ast_expr2f.c:
 	sed 's@#if __STDC_VERSION__ >= 199901L@#if !defined __STDC_VERSION__ || __STDC_VERSION__ >= 199901L@' ast_expr2f.c > zz
 	mv zz ast_expr2f.c
 
+ast_expr2f.o: ASTCFLAGS+=-Wno-unused
+
 testexpr2: ast_expr2f.c ast_expr2.c ast_expr2.h
 	$(CC) -g -c -Iinclude -DSTANDALONE ast_expr2f.c
 	$(CC) -g -c -Iinclude -DSTANDALONE ast_expr2.c
@@ -121,6 +123,8 @@ testexpr2: ast_expr2f.c ast_expr2.c ast_expr2.h
 
 channel.o: ASTCFLAGS+=$(ZAPTEL_INCLUDE)
 
+stdtime/localtime.o: ASTCFLAGS+=-fno-strict-overflow
+
 AST_EMBED_LDSCRIPTS:=$(sort $(EMBED_LDSCRIPTS))
 AST_EMBED_LDFLAGS:=$(foreach dep,$(EMBED_LDFLAGS),$(value $(dep)))
 AST_EMBED_LIBS:=$(foreach dep,$(EMBED_LIBS),$(value $(dep)))

main/editline/readline.c

@@ -1203,7 +1203,6 @@ filename_completion_function(const char *text, int state)
 	struct dirent *entry;
 	char *temp;
 	size_t len;
-	int count = 0;
 
 	temp = strrchr(text, '/');
 	if (temp) {

main/udptl.c

@@ -844,6 +844,7 @@ void ast_udptl_set_peer(struct ast_udptl *udptl, struct sockaddr_in *them)
 
 void ast_udptl_get_peer(struct ast_udptl *udptl, struct sockaddr_in *them)
 {
+	memset(them, 0, sizeof(*them));
 	them->sin_family = AF_INET;
 	them->sin_port = udptl->them.sin_port;
 	them->sin_addr = udptl->them.sin_addr;
@@ -1009,13 +1010,15 @@ int ast_udptl_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags,
 	}
 	if (pr0->set_udptl_peer(c0, p1)) {
 		ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", c0->name, c1->name);
+		memset(&ac1, 0, sizeof(ac1));
 	} else {
 		/* Store UDPTL peer */
 		ast_udptl_get_peer(p1, &ac1);
 	}
-	if (pr1->set_udptl_peer(c1, p0))
+	if (pr1->set_udptl_peer(c1, p0)) {
 		ast_log(LOG_WARNING, "Channel '%s' failed to talk back to '%s'\n", c1->name, c0->name);
-	else {
+		memset(&ac0, 0, sizeof(ac0));
+	} else {
 		/* Store UDPTL peer */
 		ast_udptl_get_peer(p0, &ac0);
 	}

pbx/Makefile

@@ -35,7 +35,7 @@ clean::
 	rm -f ael/*.o
 
 ael/ael_lex.o: ael/ael_lex.c ../include/asterisk/ael_structs.h ael/ael.tab.h
-ael/ael_lex.o: ASTCFLAGS+=-I.
+ael/ael_lex.o: ASTCFLAGS+=-I. -Wno-unused
 
 ael/ael.tab.o: ael/ael.tab.c ael/ael.tab.h ../include/asterisk/ael_structs.h
 ael/ael.tab.o: ASTCFLAGS+=-I.

utils/Makefile

@@ -86,7 +86,7 @@ ast_expr2.c: ../main/ast_expr2.c
 ast_expr2f.c: ../main/ast_expr2f.c
 	@cp $< $@
 
-ast_expr2f.o: ASTCFLAGS+=-DSTANDALONE_AEL -I../main
+ast_expr2f.o: ASTCFLAGS+=-DSTANDALONE_AEL -I../main -Wno-unused
 
 check_expr: check_expr.o ast_expr2.o ast_expr2f.o
 
@@ -104,7 +104,7 @@ ael_main.o: ael_main.c ../include/asterisk/ael_structs.h
 aelparse.c: ../pbx/ael/ael_lex.c
 	@cp $< $@
 aelparse.o: aelparse.c ../include/asterisk/ael_structs.h ../pbx/ael/ael.tab.h
-aelparse.o: ASTCFLAGS+=-I../pbx -DSTANDALONE_AEL
+aelparse.o: ASTCFLAGS+=-I../pbx -DSTANDALONE_AEL -Wno-unused
 
 aelparse: aelparse.o aelbison.o pbx_ael.o ael_main.o ast_expr2f.o ast_expr2.o strcompat.o