Get `gn gen` to succeed on Windows

third_party/sqlite/src/addopcodes.awk

+#!/usr/bin/awk
+#
+# This script appends additional token codes to the end of the
+# parse.h file that lemon generates.  These extra token codes are
+# not used by the parser.  But they are used by the tokenizer and/or
+# the code generator.
+#
+#
+BEGIN {
+  max = 0
+}
+/^#define TK_/ {
+  print $0
+  if( max<$3 ) max = $3
+}
+END {
+  printf "#define TK_%-29s %4d\n", "TO_TEXT",         ++max
+  printf "#define TK_%-29s %4d\n", "TO_BLOB",         ++max
+  printf "#define TK_%-29s %4d\n", "TO_NUMERIC",      ++max
+  printf "#define TK_%-29s %4d\n", "TO_INT",          ++max
+  printf "#define TK_%-29s %4d\n", "TO_REAL",         ++max
+  printf "#define TK_%-29s %4d\n", "ISNOT",           ++max
+  printf "#define TK_%-29s %4d\n", "END_OF_FILE",     ++max
+  printf "#define TK_%-29s %4d\n", "ILLEGAL",         ++max
+  printf "#define TK_%-29s %4d\n", "SPACE",           ++max
+  printf "#define TK_%-29s %4d\n", "UNCLOSED_STRING", ++max
+  printf "#define TK_%-29s %4d\n", "FUNCTION",        ++max
+  printf "#define TK_%-29s %4d\n", "COLUMN",          ++max
+  printf "#define TK_%-29s %4d\n", "AGG_FUNCTION",    ++max
+  printf "#define TK_%-29s %4d\n", "AGG_COLUMN",      ++max
+  printf "#define TK_%-29s %4d\n", "CONST_FUNC",      ++max
+  printf "#define TK_%-29s %4d\n", "UMINUS",          ++max
+  printf "#define TK_%-29s %4d\n", "UPLUS",           ++max
+}