X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/13f84dd50ca5754391dbd3296a5c7425f9363600..d4e112ae5fad828f33e3a44de40c6e5db7db51ad:/sbr/dtimep.lex

diff --git a/sbr/dtimep.lex b/sbr/dtimep.lex
index 113f2ea2..01910868 100644
--- a/sbr/dtimep.lex
+++ b/sbr/dtimep.lex
@@ -1,3 +1,12 @@
+/* dtimep.lex exceeds the default table capacities for some old versions
+ * of lex (and the minimum defaults as specified by POSIX).  The following
+ * choices meet or exceed the lex defaults for older SunOS4.x, Solaris,
+ * HPUX, and AIX.
+ */
+%e4000
+%p7000
+%n2500
+%a5000
 %{
 #include <h/nmh.h>
 #include <h/tws.h>
@@ -8,7 +17,7 @@
 #define yywrap() 1
 #define YY_SKIP_YYWRAP
 
-#define YY_NO_UNPUT
+#define YY_NO_INPUT
 
   /* This is the tricky thing that makes this function cool.  We
    *  replace the traditional int yylex(void) declaration with our
@@ -389,3 +398,16 @@ nl      [ \t\n()]
 {nl}("hdt"|"HDT")		    { INIT(); SETDST(); SETZONE(-1000);
                                       yyterminate(); }
 .|\n
+
+%%
+/* This is a portable way to squash a warning about the yyunput()
+ * function being static but never used. It costs us a tiny amount
+ * of extra code in the binary but the other options are:
+ *  "%option nounput" which is flex-specific
+ *  makefile hackery just to compile dtimep.c with different flags
+ */
+void dtimep_yyunput(int c)
+{
+    unput(c);
+}
+