File atril-synctex-1.18.patch of Package atril

diff -Nur atril-1.26.0/configure.ac atril-1.26.0-new/configure.ac
--- atril-1.26.0/configure.ac	2021-08-06 19:08:05.000000000 +0800
+++ atril-1.26.0-new/configure.ac	2021-08-13 20:49:24.083429376 +0800
@@ -96,7 +96,7 @@
 WEBKIT_REQUIRED=2.6.0
 LIBSECRET_REQUIRED=0.5
 LIBXML_REQUIRED=2.5.0
-SYNCTEX_REQUIRED=1.21
+SYNCTEX_REQUIRED=1.18
 
 AC_SUBST([GLIB_REQUIRED])
 AC_SUBST([GTK_REQUIRED])
@@ -384,6 +384,12 @@
 if test "$enable_synctex" = "yes"; then
   AC_DEFINE([ENABLE_SYNCTEX],[1],[Define if synctex support is enabled])
   PKG_CHECK_MODULES(SYNCTEX, [synctex >= $SYNCTEX_REQUIRED], has_synctex=yes, has_synctex=no)
+  
+  PKG_CHECK_EXISTS(synctex >= 1.21, [have_synctex_1_21=yes], [have_synctex_1_21=no])
+  if test "$have_synctex_1_21" = yes; then
+   AC_DEFINE(HAVE_SYNCTEX_1_21, 1, [synctex >= 1.21 present])
+  fi
+
   dnl not found? use internal code copy.
   if test "x$has_synctex" = "xno"; then
           AC_MSG_ERROR("SyncTeX support is disabled since library version $SYNCTEX_REQUIRED or newer not found")
diff -Nur atril-1.26.0/libdocument/ev-document.c atril-1.26.0-new/libdocument/ev-document.c
--- atril-1.26.0/libdocument/ev-document.c	2021-08-06 19:08:05.000000000 +0800
+++ atril-1.26.0-new/libdocument/ev-document.c	2021-08-13 20:51:23.567290326 +0800
@@ -30,6 +30,12 @@
 #endif
 #include "ev-file-helpers.h"
 
+#ifndef HAVE_SYNCTEX_1_21
+typedef synctex_node_t    synctex_node_p;
+typedef synctex_scanner_t synctex_scanner_p;
+#define synctex_scanner_next_result synctex_next_result
+#endif
+
 typedef struct _EvPageSize
 {
 	gdouble width;
@@ -481,7 +487,11 @@
         if (!scanner)
                 return NULL;
 
+#ifdef HAVE_SYNCTEX_1_21
         if (synctex_display_query (scanner, link->filename, link->line, link->col, 0) > 0) {
+#else
+        if (synctex_display_query (scanner, link->filename, link->line, link->col) > 0) {
+#endif
                 synctex_node_p node;
                 gint           page;