1 files changed, 5 insertions, 4 deletions

diff --git a/src/regex.c b/src/regex.c
index e83e28dac1e..480cbbc1632 100644
--- a/src/regex.c
+++ b/src/regex.c
@@ -24,6 +24,7 @@
   #pragma alloca
 #endif
 
+#undef  _GNU_SOURCE
 #define _GNU_SOURCE
 
 #ifdef HAVE_CONFIG_H
@@ -999,7 +1000,7 @@ static const char *re_error_msgid[] =
    This is a variable only so users of regex can assign to it; we never
    change it ourselves.  */
 #if defined (MATCH_MAY_ALLOCATE)
-int re_max_failures = 200000;
+int re_max_failures = 20000;
 #else
 int re_max_failures = 2000;
 #endif
@@ -1155,7 +1156,7 @@ typedef struct
     /* Push the info, starting with the registers.  */                  \
     DEBUG_PRINT1 ("\n");                                                \
                                                                         \
-    if (!(RE_NO_POSIX_BACKTRACKING & bufp->syntax))                     \
+    if (1)                                                              \
       for (this_reg = lowest_active_reg; this_reg <= highest_active_reg; \
            this_reg++)                                                  \
         {                                                               \
@@ -1216,7 +1217,7 @@ typedef struct
 
 /* We actually push this many items.  */
 #define NUM_FAILURE_ITEMS                               \
-  (((RE_NO_POSIX_BACKTRACKING & bufp->syntax            \
+  (((0                                                  \
      ? 0 : highest_active_reg - lowest_active_reg + 1)  \
     * NUM_REG_ITEMS)                                    \
    + NUM_NONREG_ITEMS)
@@ -1277,7 +1278,7 @@ typedef struct
   low_reg = (unsigned) POP_FAILURE_INT ();                              \
   DEBUG_PRINT2 ("  Popping  low active reg: %d\n", low_reg);            \
                                                                         \
-  if (!(RE_NO_POSIX_BACKTRACKING & bufp->syntax))                       \
+  if (1)                                                                \
     for (this_reg = high_reg; this_reg >= low_reg; this_reg--)          \
       {                                                                 \
         DEBUG_PRINT2 ("    Popping reg: %d\n", this_reg);               \