(SET_REGS_MATCHED): Enclose if-stmt in `do {...} while(0)'

instead of using trailing `else' -- otherwise, gcc -Wall complains
of `empty body in an else-statement'.

diff --git a/lib/regex.c b/lib/regex.c
index abab974..04e92a8 100644 (file)
--- a/lib/regex.c
+++ b/lib/regex.c
@@ -1241,20 +1241,22 @@ typedef union
 /* Call this when have matched a real character; it sets `matched' flags
    for the subexpressions which we are currently inside.  Also records
    that those subexprs have matched.  */
-#define SET_REGS_MATCHED()                                     \
-  if (!set_regs_matched_done)                                  \
-    {                                                          \
-      unsigned r;                                              \
-      set_regs_matched_done = 1;                               \
-      for (r = lowest_active_reg; r <= highest_active_reg; r++)        \
-        {                                                      \
-          MATCHED_SOMETHING (reg_info[r])                      \
-            = EVER_MATCHED_SOMETHING (reg_info[r])             \
-            = 1;                                               \
-        }                                                      \
-    }                                                          \
-  else
-
+#define SET_REGS_MATCHED()                                             \
+  do                                                                   \
+    {                                                                  \
+      if (!set_regs_matched_done)                                      \
+       {                                                               \
+         unsigned r;                                                   \
+         set_regs_matched_done = 1;                                    \
+         for (r = lowest_active_reg; r <= highest_active_reg; r++)     \
+           {                                                           \
+             MATCHED_SOMETHING (reg_info[r])                           \
+               = EVER_MATCHED_SOMETHING (reg_info[r])                  \
+               = 1;                                                    \
+           }                                                           \
+       }                                                               \
+    }                                                                  \
+  while (0)
 
 /* Registers are set to a sentinel when they haven't yet matched.  */
 static char reg_unset_dummy;