Ensure that Asterisk builds with --enable-dev-mode, even on the latest gcc

and glibc.


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@160207 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 7 insertions, 2 deletions

diff --git a/main/pbx.c b/main/pbx.c
index 99ecee92b..293705c02 100644
--- a/main/pbx.c
+++ b/main/pbx.c
@@ -4494,14 +4494,19 @@ int ast_context_add_ignorepat2(struct ast_context *con, const char *value, const
 {
 	struct ast_ignorepat *ignorepat, *ignorepatc, *ignorepatl = NULL;
 	int length;
+	char *pattern;
 	length = sizeof(struct ast_ignorepat);
 	length += strlen(value) + 1;
 	if (!(ignorepat = ast_calloc(1, length)))
 		return -1;
 	/* The cast to char * is because we need to write the initial value.
-	 * The field is not supposed to be modified otherwise
+	 * The field is not supposed to be modified otherwise.  Also, gcc 4.2
+	 * sees the cast as dereferencing a type-punned pointer and warns about
+	 * it.  This is the workaround (we're telling gcc, yes, that's really
+	 * what we wanted to do).
 	 */
-	strcpy((char *)ignorepat->pattern, value);
+	pattern = (char *) ignorepat->pattern;
+	strcpy(pattern, value);
 	ignorepat->next = NULL;
 	ignorepat->registrar = registrar;
 	ast_mutex_lock(&con->lock);