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http://www.openoffice.org/issues/show_bug.cgi?id=67166
Issue #|67166
Summary|empty macros used in target definitions should trigger
| a warning if redefined later
Component|tools
Version|current
Platform|All
URL|
OS/Version|All
Status|NEW
Status whiteboard|
Keywords|
Resolution|
Issue type|DEFECT
Priority|P3
Subcomponent|dmake
Assigned to|vq
Reported by|vq
------- Additional comments from [EMAIL PROTECTED] Sun Jul 9 17:11:33 -0700
2006 -------
dmake should issue a warning for when a previously unset macro (i.e. it is
assumed to be empty) is used and later set to a different value.
The following example, see also issue 67145,
-- makefile.mk --
SHELL*:=/bin/sh
SHELLFLAGS*:=-ce
# NEWDEP=
all: $(NEWDEP)
echo $@
NEWDEP=my_dependency
-- makefile.mk --
shows a case where we currently allow the use of an empty macro without
warning that it is (re-)defined in line 9.
If the macro would have been defined, even by setting it to "", (for example
by uncommenting line 4) the current dmake would warn about the redefinition.
Adding this warning makes it easy to catch faulty target definitions where
the prerequisites are expanded early and late evaluation with $$ should have
been used. See again issue 67145 for such a problem.
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