URL:
<http://savannah.gnu.org/bugs/?19236>
Summary: Imported variable with trailing backslash messes up
make's line parsing in nested evaluations
Project: make
Submitted by: kristovschulz
Submitted on: Donnerstag 08.03.2007 um 08:44
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 3.81
Operating System: Any
Fixed Release: None
_______________________________________________________
Details:
Consider following Makefile:
backslash := $(strip \)
A := X$(backslash)
define Y
ifeq (1,1)
B := $(A)
endif
endef
$(eval $(Y))
If B contains a value with a trailing backslash then make aborts with the
following error:
Makefile:8: *** missing `endif'. Stop.
Somehow the trailing backslash of the variable A is considered a line
continuation character within the nested evaluation, such that make misses
the terminating "endif".
Background: The original problem was a PATH with a trailing backslash
imported from the environment. Within an "eval"uated "define" statement I
used something like:
define $(COMP)_CUSTOM_WX_TARGET
ifneq ($(filter bcb%,$(TOOLSET)),)
$(1): export PATH := $(BCCDIR)bin;$(PATH)
endif
endef
This did not work and bailed out with the error mentioned above, as my PATH
had a trailing backslash (this happened under MS Windows, but the problem
with the trailing backslash can be reproduced on any platform).
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Donnerstag 08.03.2007 um 08:44 Name: Makefile Size: 106B By:
kristovschulz
The makefile that exhibits the bug
<http://savannah.gnu.org/bugs/download.php?file_id=12147>
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?19236>
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