Fix SAPI compilation again

Author: twose

main/SAPI.c

@@ -622,7 +622,7 @@ SAPI_API int sapi_add_header_ex(const char *header_line, size_t header_line_len,
 			&ctr);
 
 	if (!duplicate)
-		efree(header_line);
+		efree((void *) header_line);
 
 	return r;
 }
@@ -652,7 +652,7 @@ SAPI_API int sapi_header_op(sapi_header_op_enum op, void *arg)
 {
 	sapi_header_struct sapi_header;
 	char *colon_offset;
-	char *header_line;
+	const char *header_line;
 	size_t header_line_len;
 	int http_response_code;
 
@@ -1115,7 +1115,7 @@ SAPI_API void sapi_add_request_header(const char *var, unsigned int var_len, con
 	    var[3] == 'P' &&
 	    var[4] == '_') {
 
-		char *p;
+		const char *p;
 
 		var_len -= 5;
 		p = var + 5;
@@ -1146,7 +1146,7 @@ SAPI_API void sapi_add_request_header(const char *var, unsigned int var_len, con
 	}
 	add_assoc_stringl_ex(return_value, var, var_len, val, val_len);
 	if (str) {
-		free_alloca(var, use_heap);
+		free_alloca((void *) var, use_heap);
 	}
 }
 /* }}} */