nginx-0.0.1-2003-10-30-19:51:33 import
diff --git a/src/core/ngx_conf_file.c b/src/core/ngx_conf_file.c
index 5818636..60d68a0 100644
--- a/src/core/ngx_conf_file.c
+++ b/src/core/ngx_conf_file.c
@@ -741,7 +741,7 @@
     }
 
     bufs->size = ngx_parse_size(&value[2]);
-    if (bufs->size == NGX_ERROR || bufs->size == 0) {
+    if (bufs->size == (size_t) NGX_ERROR || bufs->size == 0) {
         return "invalid value";
     }
 
diff --git a/src/core/ngx_hunk.c b/src/core/ngx_hunk.c
index 3799cef..de57a5d 100644
--- a/src/core/ngx_hunk.c
+++ b/src/core/ngx_hunk.c
@@ -115,7 +115,7 @@
     *out = NULL;
 
     while (*busy) {
-        if (ngx_hunk_size((*busy)->hunk) > 0) {
+        if (ngx_hunk_size((*busy)->hunk) != 0) {
             break;
         }
 
diff --git a/src/core/ngx_hunk.h b/src/core/ngx_hunk.h
index 3de78aa..e68ba6d 100644
--- a/src/core/ngx_hunk.h
+++ b/src/core/ngx_hunk.h
@@ -67,7 +67,7 @@
 
 typedef struct {
     int          num;
-    ssize_t      size;
+    size_t       size;
 } ngx_bufs_t;
 
 
@@ -117,8 +117,8 @@
 
 
 #define ngx_hunk_size(h)                                                     \
-        ((h->type & NGX_HUNK_IN_MEMORY) ? h->last - h->pos:                  \
-                                         (size_t) (h->file_last - h->file_pos))
+        ((h->type & NGX_HUNK_IN_MEMORY) ? (size_t) (h->last - h->pos):       \
+                                          (size_t) (h->file_last - h->file_pos))
 
 
 ngx_hunk_t *ngx_create_temp_hunk(ngx_pool_t *pool, int size);
diff --git a/src/core/ngx_output_chain.c b/src/core/ngx_output_chain.c
index b50cf90..69ed5bc 100644
--- a/src/core/ngx_output_chain.c
+++ b/src/core/ngx_output_chain.c
@@ -16,7 +16,8 @@
 int ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in)
 {
     int           rc, last;
-    ssize_t       size, hsize;
+    size_t        hsize;
+    ssize_t       size;
     ngx_chain_t  *cl, *out, **last_out;
 
     /*