Add the Bison 1.25 bug-for-bug "broken-undeftoken-init" compatiblity option

taken from src/contrib/bison, as we will need this if one is buiding our
older EGCS source base.

2 files changed, 40 insertions, 0 deletions

diff --git a/devel/bison175/files/patch-getargs.c b/devel/bison175/files/patch-getargs.c
new file mode 100644
index 0000000..a08818e
--- /dev/null
+++ b/devel/bison175/files/patch-getargs.c
@@ -0,0 +1,18 @@
+--- src/getargs.c.orig	Mon Jun 14 15:19:05 1999
++++ src/getargs.c	Mon Jan 17 03:38:56 2000
+@@ -31,6 +31,7 @@
+ int noparserflag = 0;
+ int toknumflag = 0;
+ int rawtoknumflag = 0;
++int broken_undeftoken_init;
+ char *spec_name_prefix; /* for -p.  */
+ char *spec_file_prefix; /* for -b. */
+ extern int fixed_outfiles;/* for -y */
+@@ -44,6 +45,7 @@
+ 
+ struct option longopts[] =
+ {
++  {"broken-undeftoken-init", 0, &broken_undeftoken_init, 1},
+   {"debug", 0, &debugflag, 1},
+   {"defines", 0, &definesflag, 1},
+   {"file-prefix", 1, 0, 'b'},
diff --git a/devel/bison175/files/patch-reader.c b/devel/bison175/files/patch-reader.c
new file mode 100644
index 0000000..29e1146
--- /dev/null
+++ b/devel/bison175/files/patch-reader.c
@@ -0,0 +1,22 @@
+--- src/reader.c.orig	Mon Jun 14 15:19:05 1999
++++ src/reader.c	Mon Jan 17 03:38:56 2000
+@@ -44,6 +44,7 @@
+ int rline_allocated;
+ 
+ extern char *program_name;
++extern int broken_undeftoken_init;
+ extern int definesflag;
+ extern int nolinesflag;
+ extern int noparserflag;
+@@ -199,7 +200,10 @@
+   /* it is always token number 2.  */
+   undeftoken = getsym("$undefined.");
+   undeftoken->class = STOKEN;
+-  undeftoken->user_token_number = 2;
++  /* XXX ``broken_undeftoken_init'' makes Bison 1.28 bug-compatable
++     with Bison 1.25.  FreeBSD depends on this behavior when compiling
++     EGCS-1.1.2's cc1plus.  */
++  undeftoken->user_token_number = broken_undeftoken_init ? 0 : 2;
+   /* Read the declaration section.  Copy %{ ... %} groups to ftable and fdefines file.
+      Also notice any %token, %left, etc. found there.  */
+   if (noparserflag)