From 95ffcda425a74059c219874fd6101504b4df01ed Mon Sep 17 00:00:00 2001
From: Hartmut Becker <becker.ismaning@freenet.de>
Date: Thu, 4 Sep 2014 21:04:52 +0200
Subject: Fix and enhance VMS library support.

* ar.c: fix VMS library search for members, which do not have
suffixes, aka filename extensions.
* arscan.c: fix time conversion and library callback routines.
* default.c: more suffixes and automatically create the VMS library
if it doesn't exists.
---
 ar.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 46 insertions(+), 3 deletions(-)

(limited to 'ar.c')

diff --git a/ar.c b/ar.c
index 5d2f000..675572a 100644
--- a/ar.c
+++ b/ar.c
@@ -1,5 +1,5 @@
 /* Interface to 'ar' archives for GNU Make.
-Copyright (C) 1988-2013 Free Software Foundation, Inc.
+Copyright (C) 1988-2014 Free Software Foundation, Inc.
 
 This file is part of GNU Make.
 
@@ -172,10 +172,20 @@ ar_touch (const char *name)
 
 /* State of an 'ar_glob' run, passed to 'ar_glob_match'.  */
 
+/* On VMS, (object) modules in libraries do not have suffixes. That is, to
+   find a match for a pattern, the pattern must not have any suffix. So the
+   suffix of the pattern is saved and the pattern is stripped (ar_glob).
+   If there is a match and the match, which is a module name, is added to
+   the chain, the saved suffix is added back to construct a source filename
+   (ar_glob_match). */
+
 struct ar_glob_state
   {
     const char *arname;
     const char *pattern;
+#ifdef VMS
+    char *suffix;
+#endif
     unsigned int size;
     struct nameseq *chain;
     unsigned int n;
@@ -196,7 +206,13 @@ ar_glob_match (int desc UNUSED, const char *mem, int truncated UNUSED,
     {
       /* We have a match.  Add it to the chain.  */
       struct nameseq *new = xcalloc (state->size);
-      new->name = strcache_add (concat (4, state->arname, "(", mem, ")"));
+#ifdef VMS
+      if (state->suffix)
+        new->name = strcache_add(
+            concat(5, state->arname, "(", mem, state->suffix, ")"));
+      else
+#endif
+        new->name = strcache_add(concat(4, state->arname, "(", mem, ")"));
       new->next = state->chain;
       state->chain = new;
       ++state->n;
@@ -248,7 +264,9 @@ ar_glob (const char *arname, const char *member_pattern, unsigned int size)
   struct nameseq *n;
   const char **names;
   unsigned int i;
-
+#ifdef VMS
+  char *vms_member_pattern;
+#endif
   if (! glob_pattern_p (member_pattern, 1))
     return 0;
 
@@ -256,11 +274,36 @@ ar_glob (const char *arname, const char *member_pattern, unsigned int size)
      ar_glob_match will accumulate them in STATE.chain.  */
   state.arname = arname;
   state.pattern = member_pattern;
+#ifdef VMS
+    {
+      /* In a copy of the pattern, find the suffix, save it and  remove it from
+         the pattern */
+      char *lastdot;
+      vms_member_pattern = xstrdup(member_pattern);
+      lastdot = strrchr(vms_member_pattern, '.');
+      state.suffix = lastdot;
+      if (lastdot)
+        {
+          state.suffix = xstrdup(lastdot);
+          *lastdot = 0;
+        }
+      state.pattern = vms_member_pattern;
+    }
+#endif
   state.size = size;
   state.chain = 0;
   state.n = 0;
   ar_scan (arname, ar_glob_match, &state);
 
+#ifdef VMS
+  /* Deallocate any duplicated string */
+  free(vms_member_pattern);
+  if (state.suffix)
+    {
+      free(state.suffix);
+    }
+#endif
+
   if (state.chain == 0)
     return 0;
 
-- 
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