lua: add parents to luaconf.h to quiet a gcc warning

gcc warns about suspicious-looking code with a comparison inside ==.
The code is correct, but add parens so that gcc know we know it is
correct.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

diff --git a/com32/lua/src/luaconf.h b/com32/lua/src/luaconf.h
index f39f50e..d285251 100644 (file)
--- a/com32/lua/src/luaconf.h
+++ b/com32/lua/src/luaconf.h
@@ -564,13 +564,13 @@
 #define luai_numdiv(a,b)       \
   (-1/2?                       \
    (a)/(b):                    \
-   ((a)<0==(b)<0||(a)%(b)==0?  \
+   (((a)<0)==((b)<0)||(a)%(b)==0?              \
     (a)/(b):                   \
     (a)/(b)-1))
 #define luai_nummod(a,b)       \
   (-1/2?                       \
    (a)%(b):                    \
-   ((a)<0==(b)<0||(a)%(b)==0?  \
+   (((a)<0)==((b)<0)||(a)%(b)==0?              \
     (a)%(b):                   \
     (a)%(b)+(b)))
 #define luai_lnumdiv(a,b)      \