[Boost-build] Fixup semicolon

Subject: [Boost-build] Fixup semicolon
From: Vladimir Prus (ghost_at_[hidden])
Date: 2008-10-16 13:00:06

Right now, bjam does not consider semicolon a separate unless it's 
surrounded by spaces, so:

        exe a : a.cpp;

is an error. The below patch fixes this. Is this a path worth taking,
and should we extend this to other special characters?

- Volodya

Index: scan.c
===================================================================
--- scan.c      (revision 49346)
+++ scan.c      (working copy)
@@ -300,6 +300,11 @@
             ( inquote || !isspace( c ) )
         )
         {
+            if (!inquote && b > buf && c == ';')
+            {
+                break;
+            }
+
             if ( c == '"' )
             {
                 /* begin or end " */