util: Don't use 0-sized arrays.

Not supported by MSVC.

diff --git a/src/gallium/auxiliary/util/u_debug_memory.c b/src/gallium/auxiliary/util/u_debug_memory.c
index 758541c2829d752c070425fcbe74921c975c9d86..7623cb93981b5beaf1d18403a2b82189b30a6ee5 100644 (file)
--- a/src/gallium/auxiliary/util/u_debug_memory.c
+++ b/src/gallium/auxiliary/util/u_debug_memory.c
@@ -73,7 +73,9 @@ struct debug_memory_header
    const char *file;
    unsigned line;
    const char *function;
+#if DEBUG_MEMORY_STACK
    struct debug_stack_frame backtrace[DEBUG_MEMORY_STACK];
+#endif
    size_t size;
    
    unsigned magic;
@@ -140,7 +142,9 @@ debug_malloc(const char *file, unsigned line, const char *function,
    hdr->size = size;
    hdr->magic = DEBUG_MEMORY_MAGIC;
 
+#if DEBUG_MEMORY_STACK
    debug_backtrace_capture(hdr->backtrace, 0, DEBUG_MEMORY_STACK);
+#endif
 
    ftr = footer_from_header(hdr);
    ftr->magic = DEBUG_MEMORY_MAGIC;
@@ -296,7 +300,9 @@ debug_memory_end(unsigned long start_no)
         debug_printf("%s:%u:%s: %u bytes at %p not freed\n",
                      hdr->file, hdr->line, hdr->function,
                      hdr->size, ptr);
+#if DEBUG_MEMORY_STACK
         debug_backtrace_dump(hdr->backtrace, DEBUG_MEMORY_STACK);
+#endif
         total_size += hdr->size;
       }