configure: Get rid of the gcc strength-reduce bug check.

configure

@@ -16833,48 +16833,6 @@ if test "x${GCC}" = "xyes"
 then
   EXTRACFLAGS="-Wall -pipe"
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc strength-reduce bug" >&5
-$as_echo_n "checking for gcc strength-reduce bug... " >&6; }
-if ${ac_cv_c_gcc_strength_bug+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
-  ac_cv_c_gcc_strength_bug="no"
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-int L[4] = {0,1,2,3};
-int
-main ()
-{
-static int Array[3];
-  unsigned int B = 3;
-  int i;
-  for(i=0; i<B; i++) Array[i] = i - 3;
-  for(i=0; i<4 - 1; i++) L[i] = L[i + 1];
-  L[i] = 4;
-  return (Array[1] != -2 || L[2] != 3)
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  ac_cv_c_gcc_strength_bug="no"
-else
-  ac_cv_c_gcc_strength_bug="yes"
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_gcc_strength_bug" >&5
-$as_echo "$ac_cv_c_gcc_strength_bug" >&6; }
-  if test "$ac_cv_c_gcc_strength_bug" = "yes"
-  then
-    EXTRACFLAGS="$EXTRACFLAGS -fno-strength-reduce"
-  fi
-
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -fcf-protection=none" >&5
 $as_echo_n "checking whether the compiler supports -fcf-protection=none... " >&6; }
 if ${ac_cv_cflags__fcf_protection_none+:} false; then :

configure.ac

@@ -2009,22 +2009,6 @@ if test "x${GCC}" = "xyes"
 then
   EXTRACFLAGS="-Wall -pipe"
 
-  dnl Check for strength-reduce bug
-  AC_CACHE_CHECK( [for gcc strength-reduce bug], ac_cv_c_gcc_strength_bug,
-                  AC_RUN_IFELSE([AC_LANG_PROGRAM([[int L[[4]] = {0,1,2,3};]],
-[[static int Array[[3]];
-  unsigned int B = 3;
-  int i;
-  for(i=0; i<B; i++) Array[[i]] = i - 3;
-  for(i=0; i<4 - 1; i++) L[[i]] = L[[i + 1]];
-  L[[i]] = 4;
-  return (Array[[1]] != -2 || L[[2]] != 3)]])],
-    [ac_cv_c_gcc_strength_bug="no"],[ac_cv_c_gcc_strength_bug="yes"],[ac_cv_c_gcc_strength_bug="no"]) )
-  if test "$ac_cv_c_gcc_strength_bug" = "yes"
-  then
-    EXTRACFLAGS="$EXTRACFLAGS -fno-strength-reduce"
-  fi
-
   dnl Check for some compiler flags
   WINE_TRY_CFLAGS([-fcf-protection=none])
   WINE_TRY_CFLAGS([-fno-stack-protector])