[src/trunk]: src/external/bsd/flex/dist/src fix the re-entrant prefixed case.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ca03a429ea91
branches:  trunk
changeset: 820206:ca03a429ea91
user:      christos <christos%NetBSD.org@localhost>
date:      Tue Jan 03 01:56:03 2017 +0000

description:
fix the re-entrant prefixed case.

diffstat:

 external/bsd/flex/dist/src/flex.skl |  6 ++++--
 external/bsd/flex/dist/src/main.c   |  8 ++++----
 2 files changed, 8 insertions(+), 6 deletions(-)

diffs (60 lines):

diff -r c65b19efc43e -r ca03a429ea91 external/bsd/flex/dist/src/flex.skl
--- a/external/bsd/flex/dist/src/flex.skl       Tue Jan 03 01:30:15 2017 +0000
+++ b/external/bsd/flex/dist/src/flex.skl       Tue Jan 03 01:56:03 2017 +0000
@@ -113,7 +113,7 @@
 
 m4preproc_define(`M4_GEN_PREFIX',
     ``[[#define yy$1 ]]M4_YY_PREFIX[[$1]]
-m4_define([[yy$1]], [[M4_YY_PREFIX[[$1]]m4_ifelse($'`#,0,,[[($'`@)]])]])'')
+%# m4_define([[yy$1]], [[M4_YY_PREFIX[[$1]]m4_ifelse($'`#,0,,[[($'`@)]])]])'')
 
 %if-c++-only
     /* The c++ scanner is a mess. The FlexLexer.h header file relies on the
@@ -126,7 +126,8 @@
 %endif
 
 %if-c-only
-m4_ifelse(M4_YY_PREFIX,M4_YY_PREFIX,,
+%if-reentrant
+m4_ifelse(M4_YY_PREFIX,yy,,
     M4_GEN_PREFIX(`_create_buffer')
     M4_GEN_PREFIX(`_delete_buffer')
     M4_GEN_PREFIX(`_scan_buffer')
@@ -164,6 +165,7 @@
     M4_GEN_PREFIX(`wrap')
 )
 %endif
+%endif
 
 m4_ifdef( [[M4_YY_BISON_LVAL]],
 [[
diff -r c65b19efc43e -r ca03a429ea91 external/bsd/flex/dist/src/main.c
--- a/external/bsd/flex/dist/src/main.c Tue Jan 03 01:30:15 2017 +0000
+++ b/external/bsd/flex/dist/src/main.c Tue Jan 03 01:56:03 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: main.c,v 1.5 2017/01/03 00:22:56 christos Exp $        */
+/*     $NetBSD: main.c,v 1.6 2017/01/03 01:56:03 christos Exp $        */
 
 /* flex - tool to generate fast lexical analyzers */
 
@@ -33,7 +33,7 @@
 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
 /*  PURPOSE. */
 #include "flexdef.h"
-__RCSID("$NetBSD: main.c,v 1.5 2017/01/03 00:22:56 christos Exp $");
+__RCSID("$NetBSD: main.c,v 1.6 2017/01/03 01:56:03 christos Exp $");
 
 
 #include "version.h"
@@ -1590,9 +1590,9 @@
        if (!do_yywrap) {
                if (!C_plus_plus) {
                         if (reentrant)
-                               outn ("\n#define yywrap(yyscanner) (/*CONSTCOND*/1)");
+                               out_str ("\n#define %swrap(yyscanner) (/*CONSTCOND*/1)\n", prefix);
                         else
-                               outn ("\n#define yywrap() (/*CONSTCOND*/1)");
+                               out_str ("\n#define %swrap() (/*CONSTCOND*/1)\n", prefix);
                }
                outn ("#define YY_SKIP_YYWRAP");
        }