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* [Bug c/14933] New: missing pre-compiled header depends with -MD
@ 2004-04-13  4:21 dfries at mail dot win dot org
  2004-04-13  4:27 ` [Bug pch/14933] " pinskia at gcc dot gnu dot org
                   ` (3 more replies)
  0 siblings, 4 replies; 13+ messages in thread
From: dfries at mail dot win dot org @ 2004-04-13  4:21 UTC (permalink / raw)
  To: gcc-bugs

When using a pre-compiled header the option -MD produces no
dependencies on the pre-compiled header or the headers that the
pre-compiled header is composed of.  I would expect the same problem
on any of the dependency generating options.

SpacedOut:/tmp/test$ gcc -MD headers.h  -o headers.h.gch
SpacedOut:/tmp/test$ cat headers.h.d 
headers.h.gch: headers.h

> so far so good

SpacedOut:/tmp/test$ gcc -MD main.c -o main 
SpacedOut:/tmp/test$ cat main.d
main: main.c

> So main doesn't require anything?  I don't think so.

SpacedOut:/tmp/test$ rm -f *.d *.i *.s a.out *.gch main
SpacedOut:/tmp/test$ gcc -MD main.c -o main 
SpacedOut:/tmp/test$ cat main.d
main: main.c headers.h

> Much better.  I would think it should be the following when using
> the precompiled headers.
main: main.c headers.h.gch

SpacedOut:/tmp/test$ gcc -v
Reading specs from /home/david/WorkProjects/OpenSceneGraph/DevelGcc/install/lib/gcc/i686-pc-linux-gnu/3.5.0/specs
Configured with: ../gcc_src/configure --enable-languages=c++ --prefix=/home/david/WorkProjects/OpenSceneGraph/DevelGcc/install 
--exec-prefix=/home/david/WorkProjects/OpenSceneGraph/DevelGcc/install
Thread model: posix
gcc version 3.5.0 20040412 (experimental)


header.h:
#ifndef _HEADERS_H
#define _HEADERS_H 1
const int value=32;
#endif /* _HEADERS_H */

main.c:
#include "headers.h"

int main(int argc, char ** argv)
{
        return value;
}

-- 
           Summary: missing pre-compiled header depends with -MD
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dfries at mail dot win dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i386-linux
  GCC host triplet: i386-linux
GCC target triplet: i386-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14933


^ permalink raw reply	[flat|nested] 13+ messages in thread
end of thread, other threads:[~2010-06-04 20:11 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-14933-8321@http.gcc.gnu.org/bugzilla/>
2006-03-20 19:40 ` [Bug pch/14933] missing pre-compiled header depends with -MD pedz at easesoftware dot net
2006-07-25 15:23 ` mjuric at astro dot princeton dot edu
2007-01-27 20:03 ` tromey at gcc dot gnu dot org
2007-11-28 19:07 ` tromey at gcc dot gnu dot org
2008-03-14 21:26 ` tromey at gcc dot gnu dot org
2008-04-20 19:00 ` tromey at gcc dot gnu dot org
2008-04-20 23:56 ` pedz at easesoftware dot com
2008-11-03 22:35 ` pinskia at gcc dot gnu dot org
2010-06-04 20:11 ` kristiaan dot lenaerts at gmail dot com
2004-04-13  4:21 [Bug c/14933] New: " dfries at mail dot win dot org
2004-04-13  4:27 ` [Bug pch/14933] " pinskia at gcc dot gnu dot org
2004-04-13 19:01 ` geoffk at gcc dot gnu dot org
2004-04-17  8:43 ` geoffk at gcc dot gnu dot org
2004-12-14 13:19 ` pinskia at gcc dot gnu dot org

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