URL:
<http://savannah.gnu.org/bugs/?func=detailitem&item_id=16562>
Summary: Backslashes copied from Makefile to Shell (3.80
behaved differently)
Project: make
Submitted by: None
Submitted on: Thursday 05/11/06 at 14:57 UTC
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Component Version: 3.81
Operating System: POSIX-Based
Fixed Release: None
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Details:
The following Makefile works with 3.80 but fails with 3.81:
all:
perl -e 'BEGIN { print 5; } \
END { print 6; }'
This is because 3.80 removed the continuation backslashes before passing the
command to the shell, while 3.81 keeps them. Thus Perl finds a backslash
where it does not expect it in 3.81. Perl then complains:
> Can't call method "END" without a package or object reference at -e line
2.
Replace 'perl -e' with 'echo' to see the pure effect of this difference.
I think this is bad: a) because it's different than before, b) because it is
currently not possible to pass multiline arguments to the shell without
backslashes, since the backslash is the only way to continue a line in the
Makefile.
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Thursday 05/11/06 at 14:57 UTC Name: Makefile.test Size: 74B By:
None
Makefile that triggers the problem
<http://savannah.gnu.org/bugs/download.php?file_id=9944>
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