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* [Bug preprocessor/22231] -MG ignores missing headers even with -c [not found] <bug-22231-10902@http.gcc.gnu.org/bugzilla/> @ 2007-01-08 1:54 ` tromey at gcc dot gnu dot org 2007-01-21 3:09 ` tromey at gcc dot gnu dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: tromey at gcc dot gnu dot org @ 2007-01-08 1:54 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from tromey at gcc dot gnu dot org 2007-01-08 01:54 ------- Confirmed. I'm inclined to agree that we should disallow -MG in this situation. Perhaps this is best done in c-opts.c:sanitize_cpp_opts() -- tromey at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tromey at gcc dot gnu dot | |org Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2007-01-08 01:54:32 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22231 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug preprocessor/22231] -MG ignores missing headers even with -c [not found] <bug-22231-10902@http.gcc.gnu.org/bugzilla/> 2007-01-08 1:54 ` [Bug preprocessor/22231] -MG ignores missing headers even with -c tromey at gcc dot gnu dot org @ 2007-01-21 3:09 ` tromey at gcc dot gnu dot org 2008-05-08 16:41 ` tromey at gcc dot gnu dot org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: tromey at gcc dot gnu dot org @ 2007-01-21 3:09 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from tromey at gcc dot gnu dot org 2007-01-21 03:09 ------- I am testing a patch for this. -- tromey at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |tromey at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED Last reconfirmed|2007-01-08 01:54:32 |2007-01-21 03:09:47 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22231 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug preprocessor/22231] -MG ignores missing headers even with -c [not found] <bug-22231-10902@http.gcc.gnu.org/bugzilla/> 2007-01-08 1:54 ` [Bug preprocessor/22231] -MG ignores missing headers even with -c tromey at gcc dot gnu dot org 2007-01-21 3:09 ` tromey at gcc dot gnu dot org @ 2008-05-08 16:41 ` tromey at gcc dot gnu dot org 2008-05-09 22:18 ` tromey at gcc dot gnu dot org 2008-05-09 22:19 ` tromey at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: tromey at gcc dot gnu dot org @ 2008-05-08 16:41 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from tromey at gcc dot gnu dot org 2008-05-08 16:40 ------- I finally submitted this patch. http://gcc.gnu.org/ml/gcc-patches/2008-05/msg00520.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22231 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug preprocessor/22231] -MG ignores missing headers even with -c [not found] <bug-22231-10902@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2008-05-08 16:41 ` tromey at gcc dot gnu dot org @ 2008-05-09 22:18 ` tromey at gcc dot gnu dot org 2008-05-09 22:19 ` tromey at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: tromey at gcc dot gnu dot org @ 2008-05-09 22:18 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from tromey at gcc dot gnu dot org 2008-05-09 22:17 ------- Subject: Bug 22231 Author: tromey Date: Fri May 9 22:17:00 2008 New Revision: 135128 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135128 Log: gcc PR preprocessor/22231: * c-opts.c (sanitize_cpp_opts): Disallow -MG if compilation is proceeding. gcc/testsuite PR preprocessor/22231: * gcc.dg/pr22231.c: New file. Added: trunk/gcc/testsuite/gcc.dg/pr22231.c Modified: trunk/gcc/ChangeLog trunk/gcc/c-opts.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22231 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug preprocessor/22231] -MG ignores missing headers even with -c [not found] <bug-22231-10902@http.gcc.gnu.org/bugzilla/> ` (3 preceding siblings ...) 2008-05-09 22:18 ` tromey at gcc dot gnu dot org @ 2008-05-09 22:19 ` tromey at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: tromey at gcc dot gnu dot org @ 2008-05-09 22:19 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from tromey at gcc dot gnu dot org 2008-05-09 22:18 ------- Fixed on trunk. It is very unlikely that this will be back-ported, so I'm closing the bug. -- tromey at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED Target Milestone|--- |4.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22231 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug driver/22231] New: -MG ignores missing headers even with -c
@ 2005-06-29 13:54 js at linuxtv dot org
2005-06-29 15:22 ` [Bug preprocessor/22231] " pinskia at gcc dot gnu dot org
0 siblings, 1 reply; 6+ messages in thread
From: js at linuxtv dot org @ 2005-06-29 13:54 UTC (permalink / raw)
To: gcc-bugs
I just spent half an hour to debug mysterious build failures
(make complaining about missing dependencies) in some
third party code. (The reason was a missing -Ipath.)
Given what the documentation of -MG
in the preprocessor says I'm not sure this is a real bug,
but as an enhancement request I think gcc shouldn't
pass -MG to the preprocessor if it is used in combination
with -c (or -S etc.), or produce an error (it doesn't
really make sense to use -MG with -c).
This behaviour is the same in gcc --version:
gcc-3.3 (GCC) 3.3.6 (Debian 1:3.3.6-7)
gcc-3.4 (GCC) 3.4.5 20050613 (prerelease) (Debian 3.4.4-1)
gcc-4.0 (GCC) 4.0.1 20050617 (prerelease) (Debian 4.0.0-10)
$ cat >t.c
#include "foo.h"
$ gcc -MD -c t.c
t.c:1:17: foo.h: No such file or directory
$ ls -l t.*
-rw-r--r-- 1 js js 17 Jun 29 15:35 t.c
-rw-r--r-- 1 js js 0 Jun 29 15:36 t.d
$ gcc -MD -MG -c t.c
$ ls -l t.*
-rw-r--r-- 1 js js 17 Jun 29 15:35 t.c
-rw-r--r-- 1 js js 15 Jun 29 15:35 t.d
-rw-r--r-- 1 js js 637 Jun 29 15:35 t.o
$ cat t.d
t.o: t.c foo.h
$
--
Summary: -MG ignores missing headers even with -c
Product: gcc
Version: 4.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: driver
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: js at linuxtv dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22231
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug preprocessor/22231] -MG ignores missing headers even with -c 2005-06-29 13:54 [Bug driver/22231] New: " js at linuxtv dot org @ 2005-06-29 15:22 ` pinskia at gcc dot gnu dot org 0 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-06-29 15:22 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Component|driver |preprocessor http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22231 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2008-05-09 22:19 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-22231-10902@http.gcc.gnu.org/bugzilla/>
2007-01-08 1:54 ` [Bug preprocessor/22231] -MG ignores missing headers even with -c tromey at gcc dot gnu dot org
2007-01-21 3:09 ` tromey at gcc dot gnu dot org
2008-05-08 16:41 ` tromey at gcc dot gnu dot org
2008-05-09 22:18 ` tromey at gcc dot gnu dot org
2008-05-09 22:19 ` tromey at gcc dot gnu dot org
2005-06-29 13:54 [Bug driver/22231] New: " js at linuxtv dot org
2005-06-29 15:22 ` [Bug preprocessor/22231] " pinskia at gcc dot gnu dot org
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