Formerly read.c.~53~

diff --git a/read.c b/read.c
index 654f77e..0b032d5 100644 (file)
--- a/read.c
+++ b/read.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+/* Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993
+       Free Software Foundation, Inc.
 This file is part of GNU Make.
 
 GNU Make is free software; you can redistribute it and/or modify
@@ -343,6 +344,8 @@ read_makefile (filename, type)
       p = collapsed;
       while (isspace (*p))
        ++p;
+      /* We cannot consider a line containing just a tab to be empty
+        because it might constitute an empty command for a target.  */
       if (*p == '\0' && lb.buffer[0] != '\t')
        continue;
 
@@ -418,33 +421,34 @@ read_makefile (filename, type)
          unsigned int len;
 
          if (no_targets)
-           {
-             /* Ignore the commands in a rule with no targets.  */
-             no_targets = 0;
-             continue;
-           }
+           /* Ignore the commands in a rule with no targets.  */
+           continue;
 
-         if (filenames == 0)
-           makefile_fatal (filename, lineno,
-                           "commands with no associated target");
-
-         /* Add this command line to end of the line being accumulated.  */
-         p = lb.buffer;
-         if (commands_idx == 0)
-           commands_started = lineno;
-         len = strlen (p);
-         if (len + 1 + commands_idx > commands_len)
+         /* If there is no preceding rule line, don't treat this line
+            as a command, even though it begins with a tab character.
+            SunOS 4 make appears to behave this way.  */
+
+         if (filenames != 0)
            {
-             commands_len = (len + 1 + commands_idx) * 2;
-             commands = (char *) xrealloc (commands, commands_len);
-           }
-         bcopy (p, &commands[commands_idx], len);
-         commands_idx += len;
-         commands[commands_idx++] = '\n';
+             /* Append this command line to the line being accumulated.  */
+             p = lb.buffer;
+             if (commands_idx == 0)
+               commands_started = lineno;
+             len = strlen (p);
+             if (len + 1 + commands_idx > commands_len)
+               {
+                 commands_len = (len + 1 + commands_idx) * 2;
+                 commands = (char *) xrealloc (commands, commands_len);
+               }
+             bcopy (p, &commands[commands_idx], len);
+             commands_idx += len;
+             commands[commands_idx++] = '\n';
 
-         continue;
+             continue;
+           }
        }
-      else if (word1eq ("export", 6))
+
+      if (word1eq ("export", 6))
        {
          struct variable *v;
          p2 = next_token (p + 6);