I found this problem while trying to debug issue 30739. The recipes
following recipe "$(MISC)$/s_%.dpcc : %.cxx" from rules.mk *never*
echoed any recipe commands, not even when using -n or/and removing
the @ signs. (If failed because makedepend was missing.)

After a long while I found out that this only happens for files
created by inference that are to be used with .INCLUDE. See
solenv/inc/target.mk:2251:.INCLUDE : $(DEPFILES).

I tracked this down to an ?erroneous? setting of the A_SILENT flag in Glob_attr.

I document the order of the function calls here to reduce my own lookup times
next time.

Print_cmnd:make.c:1177 Echos the command unless echo == 0
   is called in line 1139 from:

Exec_commands:make.c:992 sets echo to true when A_SILENT is set in l_attr.
   l_attr gets set to attr in line 1183
   attr gets set to Glob_attr in 1022.
   is called in line 678 from:

Make:make.c:283 
   is called in line 702 from:

TryFiles:dmake.c:680
   is called in line 703 from:

_do_special:rulparse.c:533
   sets A_SILENT in Glob_attr unconditionally just before calling TryFiles
   in line 700. TryFiles is used to look for/infer the files to be loaded.

I don't see any reason why A_SILENT should be set especially for this, and the
following patch "fixes" this behavior:

--- dmake/rulparse.c    25 Mar 2003 14:02:13 -0000      1.5
+++ dmake/rulparse.c    27 Jun 2004 18:57:25 -0000
@@ -697,7 +697,7 @@
               t_attr cattr = prqlst->cl_prq->ce_attr;
 
               prqlst->cl_next = NIL(LINK);
-              Glob_attr |= ((attr&A_IGNORE)|A_SILENT);
+              Glob_attr |= (attr&A_IGNORE);
               prqlst->cl_prq->ce_attr &= ~A_FRINGE;
 
               fil = TryFiles(prqlst);