Use the definitions from (newer) upstream PEGTL.

diff --git a/include/gemmi/cif.hpp b/include/gemmi/cif.hpp
index c7ffdb44..35d24210 100644
--- a/include/gemmi/cif.hpp
+++ b/include/gemmi/cif.hpp
@@ -37,7 +37,6 @@ namespace pegtl = tao::pegtl;
 namespace rules {
 
   template<int TableVal> struct lookup_char {
-    using analyze_t = pegtl::analysis::generic<pegtl::analysis::rule_type::ANY>;
     template<typename Input> static bool match(Input& in) {
       if (!in.empty() && cif::char_table(in.peek_char()) == TableVal) {
         if (TableVal == 2)  // this set includes new-line
@@ -71,11 +70,11 @@ namespace rules {
   struct ws_or_eof : pegtl::sor<whitespace, pegtl::eof> {};
 
   // (b) Reserved words.
-  struct str_data : TAOCPP_PEGTL_ISTRING("data_") {};
-  struct str_loop : TAOCPP_PEGTL_ISTRING("loop_") {};
-  struct str_global : TAOCPP_PEGTL_ISTRING("global_") {};
-  struct str_save : TAOCPP_PEGTL_ISTRING("save_") {};
-  struct str_stop : TAOCPP_PEGTL_ISTRING("stop_") {};
+  struct str_data : TAO_PEGTL_ISTRING("data_") {};
+  struct str_loop : TAO_PEGTL_ISTRING("loop_") {};
+  struct str_global : TAO_PEGTL_ISTRING("global_") {};
+  struct str_save : TAO_PEGTL_ISTRING("save_") {};
+  struct str_stop : TAO_PEGTL_ISTRING("stop_") {};
   struct keyword : pegtl::sor<str_data, str_loop, str_global,
                               str_save, str_stop> {};
 
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<tr><td><span title='2024-06-03 00:27:11 +0200'>2024-06-03</span></td><td><a href='/guix/commit/configure.ac?id=f65bd477b0c7f58004a810cc9ba5f29bc231ee35'>build: Use the po4a command for the translation generation.</a><span class='msg-avail'>...</span></td><td>gemmaro</td></tr>
<tr><td><span title='2024-06-03 00:27:11 +0200'>2024-06-03</span></td><td><a href='/guix/commit/configure.ac?id=2d4af5247057505956e841d396ec78af9f769837'>build: Update the POT creation task with the po4a command.</a><span class='msg-avail'>...</span></td><td>gemmaro</td></tr>
<tr><td><span title='2024-05-25 23:28:30 -0400'>2024-05-25</span></td><td><a href='/guix/commit/configure.ac?id=77771036f0970083c146b709d792d128f4235125'>configure.ac: Set default value for the 'prefix' variable.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2024-04-19 16:45:38 +0200'>2024-04-19</span></td><td><a href='/guix/commit/configure.ac?id=bb089f76227666e11e6949038c4fd9e130e047a3'>maint: Resurrect running `make' from a tarball.</a><span class='msg-avail'>...</span></td><td>Janneke Nieuwenhuizen</td></tr>
<tr><td><span title='2023-10-22 20:35:15 -0400'>2023-10-22</span></td><td><a href='/guix/commit/configure.ac?id=4cf4dcb8b31274a8dfba6bae3a6826a1b521da3f'>teams: Adjust shebang to use 'guix repl'.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-09-26 17:36:58 +0200'>2023-09-26</span></td><td><a href='/guix/commit/configure.ac?id=f651a359691cbe4750f1fe8d14dd964f7971f916'>build: Add dependency on Git.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
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<tr><td><span title='2022-01-25 23:54:44 +0100'>2022-01-25</span></td><td><a href='/guix/commit/configure.ac?id=d582b399781f6fd80c63d07746524196603972e4'>build: Require Guile &gt;= 3.0.3.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>