I noticed some very odd behavior from dmake while working on my changes
to support auto-generation of OpenSolaris deliveries (CR 6467531). The
following seems to be a reproducible test case:
1. set up a workspace with a copy of the build 55 snapshot (open and
closed trees).
2. touch $SRC/Makefile.dummy
3. apply this patch to $SRC/lib/Makefile.targ:
--- /tmp/geta553 Tue Jan 16 17:51:15 2007
+++ Makefile.targ Tue Jan 16 15:23:34 2007
@@ -111,3 +111,5 @@
clean:
-$(RM) $(OBJS)
-$(RM) $(PICS) $(DUPLICATE_SRC) $(LINTOUT) $(LINTLIB) $(CLEANFILES)
+
+include $(SRC)/Makefile.dummy
4. Try to build the workspace using nightly(1) (debug-only; x86).
The build eventually blows up in usr/closed/lib/smartcard/cmd with
/net/tonic-gate/builds2/kupfer/dmake-include-test/usr/closed/lib/smartcard/cmd
dmake: Warning: Infinite loop: Target
`/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy' depends on itself
Current working directory
/net/tonic-gate/builds2/kupfer/dmake-include-test/usr/closed/lib/smartcard/cmd
/usr/bin/rm -f /home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy;
install -s -m 644 -f /home/kupfer/ws/dmake-include-test/usr/src
/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy
/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy: No such file or
directory
*** Error code 1
dmake: Warning: Infinite loop: Target
`/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy' depends on itself
Current working directory
/net/tonic-gate/builds2/kupfer/dmake-include-test/usr/closed/lib/smartcard/cmd
/usr/bin/rm -f /home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy;
install -s -m 644 -f /home/kupfer/ws/dmake-include-test/usr/src
/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy
/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy: No such file or
directory
*** Error code 1
dmake: Couldn't dmake
`/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy'
dmake: Fatal error in reader:
/home/kupfer/ws/dmake-include-test/usr/src/lib/Makefile.targ, line 115: Read of
include file `/home/kupfer/ws/dmake-include-test/usr/src/Makefile.dummy' failed
Current working directory
/net/tonic-gate/builds2/kupfer/dmake-include-test/usr/closed/lib/smartcard/cmd
*** Error code 1
The original failure was with a non-empty makefile, so the fact that
Makefile.dummy is zero bytes is not the problem. Moving the "include"
line to earlier in Makefile.targ makes the problem go away.
I'm planning to file a bug, but I thought I'd first see if anyone has
seen something like this before. This is the dmake version:
dmake: Sun Distributed Make 7.7 2005/10/13
thanks,
mike
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