-Wunsigned fixes.

tools/winebuild/build.h

diff --git a/tools/winebuild/build.h b/tools/winebuild/build.h
index 28d3e8e..99d8cab 100644
--- a/tools/winebuild/build.h
+++ b/tools/winebuild/build.h
@@ -98,7 +98,7 @@
     int              nb_entry_points;    /* number of used entry points */
     int              alloc_entry_points; /* number of allocated entry points */
     int              nb_names;           /* number of entry points with names */
-    int              nb_resources;       /* number of resources */
+    unsigned int     nb_resources;       /* number of resources */
     int              characteristics;    /* characteristics for the PE header */
     int              subsystem;          /* subsystem id */
     int              subsystem_major;    /* subsystem version major number */

tools/winebuild/res16.c

diff --git a/tools/winebuild/res16.c b/tools/winebuild/res16.c
index 17ff05f..44576e2 100644
--- a/tools/winebuild/res16.c
+++ b/tools/winebuild/res16.c
@@ -217,7 +217,7 @@
 /* build the 2-level (type,name) resource tree */
 static struct res_tree *build_resource_tree( DLLSPEC *spec )
 {
-    int i;
+    unsigned int i;
     struct res_tree *tree;
     struct res_type *type = NULL;
 
@@ -272,7 +272,8 @@
 {
     const struct resource *res;
     unsigned char *buffer, *p;
-    int i, total;
+    unsigned int i;
+    int total;
 
     if (!spec->nb_resources) return 0;
 
@@ -294,8 +295,8 @@
 /* output the resource definitions */
 int output_res16_directory( unsigned char *buffer, DLLSPEC *spec )
 {
-    int i, offset, res_offset = 0;
-    unsigned int j;
+    int offset, res_offset = 0;
+    unsigned int i, j;
     struct res_tree *tree;
     const struct res_type *type;
     const struct resource *res;

tools/winebuild/res32.c

diff --git a/tools/winebuild/res32.c b/tools/winebuild/res32.c
index ca90d71..7a713f8 100644
--- a/tools/winebuild/res32.c
+++ b/tools/winebuild/res32.c
@@ -269,7 +269,7 @@
 /* build the 3-level (type,name,language) resource tree */
 static struct res_tree *build_resource_tree( DLLSPEC *spec )
 {
-    int i;
+    unsigned int i;
     struct res_tree *tree;
     struct res_type *type = NULL;
     struct res_name *name = NULL;
@@ -299,7 +299,7 @@
 /* free the resource tree */
 static void free_resource_tree( struct res_tree *tree )
 {
-    int i;
+    unsigned int i;
 
     for (i = 0; i < tree->nb_types; i++) free( tree->types[i].names );
     free( tree->types );
@@ -320,8 +320,8 @@
 /* output the resource definitions */
 void output_resources( FILE *outfile, DLLSPEC *spec )
 {
-    int i, j, k, nb_id_types;
-    unsigned int n, offset, data_offset;
+    int j, k, nb_id_types;
+    unsigned int i, n, offset, data_offset;
     struct res_tree *tree;
     struct res_type *type;
     struct res_name *name;