gistfile1.txt

diff --git a/configure b/configure
index 724f9ee..4b4ce60 100755
--- a/configure
+++ b/configure
@@ -18472,73 +18472,7 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++17" >&5
-$as_echo_n "checking whether C++ compiler accepts -std=c++17... " >&6; }
-if ${ax_cv_check_cxxflags___std_cpp17+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-
-  ax_check_save_flags=$CXXFLAGS
-  CXXFLAGS="$CXXFLAGS  -std=c++17"
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-  ax_cv_check_cxxflags___std_cpp17=yes
-else
-  ax_cv_check_cxxflags___std_cpp17=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  CXXFLAGS=$ax_check_save_flags
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags___std_cpp17" >&5
-$as_echo "$ax_cv_check_cxxflags___std_cpp17" >&6; }
-if test x"$ax_cv_check_cxxflags___std_cpp17" = xyes; then :
-  CXXFLAGS="$CXXFLAGS -std=c++17"
-else
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++1z" >&5
-$as_echo_n "checking whether C++ compiler accepts -std=c++1z... " >&6; }
-if ${ax_cv_check_cxxflags___std_cpp1z+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-
-  ax_check_save_flags=$CXXFLAGS
-  CXXFLAGS="$CXXFLAGS  -std=c++1z"
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-  ax_cv_check_cxxflags___std_cpp1z=yes
-else
-  ax_cv_check_cxxflags___std_cpp1z=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  CXXFLAGS=$ax_check_save_flags
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags___std_cpp1z" >&5
-$as_echo "$ax_cv_check_cxxflags___std_cpp1z" >&6; }
-if test x"$ax_cv_check_cxxflags___std_cpp1z" = xyes; then :
-  CXXFLAGS="$CXXFLAGS -std=c++1z"
-else
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++14" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++14" >&5
 $as_echo_n "checking whether C++ compiler accepts -std=c++14... " >&6; }
 if ${ax_cv_check_cxxflags___std_cpp14+:} false; then :
   $as_echo_n "(cached) " >&6
@@ -18571,7 +18505,7 @@ if test x"$ax_cv_check_cxxflags___std_cpp14" = xyes; then :
   CXXFLAGS="$CXXFLAGS -std=c++14"
 else
 
-   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++1y" >&5
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++1y" >&5
 $as_echo_n "checking whether C++ compiler accepts -std=c++1y... " >&6; }
 if ${ax_cv_check_cxxflags___std_cpp1y+:} false; then :
   $as_echo_n "(cached) " >&6
@@ -18604,7 +18538,7 @@ if test x"$ax_cv_check_cxxflags___std_cpp1y" = xyes; then :
   CXXFLAGS="$CXXFLAGS -std=c++1y"
 else
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++11" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -std=c++11" >&5
 $as_echo_n "checking whether C++ compiler accepts -std=c++11... " >&6; }
 if ${ax_cv_check_cxxflags___std_cpp11+:} false; then :
   $as_echo_n "(cached) " >&6
@@ -18637,13 +18571,7 @@ if test x"$ax_cv_check_cxxflags___std_cpp11" = xyes; then :
   CXXFLAGS="$CXXFLAGS -std=c++11"
 else
 
-     as_fn_error $? "could not enable C++11 or newer" "$LINENO" 5
-
-fi
-
-
-fi
-
+   as_fn_error $? "could not enable C++11 or newer" "$LINENO" 5
 
 fi