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[bug #36542] make -j interacts badly with pattern rules, .SECONDARY:
From: |
David Warme |
Subject: |
[bug #36542] make -j interacts badly with pattern rules, .SECONDARY: |
Date: |
Sat, 26 May 2012 01:39:41 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4 |
URL:
<http://savannah.gnu.org/bugs/?36542>
Summary: make -j interacts badly with pattern rules,
.SECONDARY:
Project: make
Submitted by: davidwarme
Submitted on: Sat 26 May 2012 01:39:40 AM GMT
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 3.82
Operating System: POSIX-Based
Fixed Release: None
Triage Status: None
_______________________________________________________
Details:
The attached Makefile demonstrates a bug in make-3.82 that is
apparently an improper interaction between "make -j", pattern
rules and ".SECONDARY:".
This example works on Linux, and requires a working make-3.82,
gcc, and binutils (objcopy).
1. Create an empty directory.
2. cd to that directory.
3. Place the attached Makefile in that directory.
4. Do "make -j 20". Notice that the make fails because it
attempts to make a .dbg file before the corresponding
.exe file has been built.
5. Comment out the ".SECONDARY:" line in the Makefile.
6. Do "make clean".
7. Do "make -j 20". Notice that the make succeeds (but it
deletes all of the .c and .o files because the
".SECONDARY" declaration is not present.
David Warme
Group W, Inc.
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Sat 26 May 2012 01:39:40 AM GMT Name: Makefile Size: 965B By:
davidwarme
Makefile demonstrating the bug. Do "make -j 20".
<http://savannah.gnu.org/bugs/download.php?file_id=25922>
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