[Bug preprocessor/46988] New: gcc/cp/cfns.h is modified even when the object directory is out of tree

[Bug preprocessor/46988] New: gcc/cp/cfns.h is modified even when the object directory is out of tree

[raj.khem at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46988

           Summary: gcc/cp/cfns.h is modified even when the object
                    directory is out of tree
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: preprocessor
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: raj.khem@gmail.com
              Host: i686-pc-linux-gnu
            Target: i586-none-linux-gnu
             Build: i686-pc-linux-gnu


when building cross compiler for i586 it ends up modifying gcc/cp/cfns.h

Here is diff

diff --git a/gcc/cp/cfns.h b/gcc/cp/cfns.h
index 62cdfab..72aaf77 100644
--- a/gcc/cp/cfns.h
+++ b/gcc/cp/cfns.h
@@ -1,5 +1,5 @@
 /* ANSI-C code produced by gperf version 3.0.3 */
-/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L ANSI-C
cfns.gperf  */
+/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L ANSI-C
/home/kraj/work/cross/i586-none-linux-gnu/../../gcc.git/gcc/cp/cfns.gperf  */

 #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
       && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
@@ -28,7 +28,7 @@
 #error "gperf generated tables don't work with this execution character set.
Please report a bug to <bug-gnu-gperf@gnu.org>."
 #endif

-#line 1 "cfns.gperf"
+#line 1
"/home/kraj/work/cross/i586-none-linux-gnu/../../gcc.git/gcc/cp/cfns.gperf"

 /* Copyright (C) 2000, 2003 Free Software Foundation, Inc.



The compiler is configured as below

Using built-in specs.
COLLECT_GCC=i586-none-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/home/kraj/work/cross/i586-none-linux-gnu/tools/libexec/gcc/i586-none-linux-gnu/4.6.0/lto-wrapper
Target: i586-none-linux-gnu
Configured with:
/home/kraj/work/cross/i586-none-linux-gnu/../../gcc.git/configure
--target=i586-none-linux-gnu
--prefix=/home/kraj/work/cross/i586-none-linux-gnu/tools
--with-sysroot=/home/kraj/work/cross/i586-none-linux-gnu/sysroot
--enable-__cxa_atexit --disable-libssp --disable-libgomp --disable-libmudflap
--enable-languages=c,c++ --with-arch=i586
Thread model: posix
gcc version 4.6.0 20101212 (experimental) (GCC)

[Bug bootstrap/46988] gcc/cp/cfns.h is modified even when the object directory is out of tree

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46988

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
          Component|preprocessor                |bootstrap
         Resolution|                            |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2010-12-17 06:48:45 UTC ---
The diff is fine there is no differences really because it is just path.  It
just means the timestamp on gcc/cp/cfns.h is earlier than gcc/cp/cfns.gperf. 
This happens when you don't use gcc_update --touch after doing an "git pull".