preprocessor/9427: gcc 3.2.1 -traditional ignores C_INCLUDE_PATH

[prj@po.cwru.edu]

>Number:         9427
>Category:       preprocessor
>Synopsis:       gcc 3.2.1 -traditional ignores C_INCLUDE_PATH
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 23 22:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     prj@po.cwru.edu
>Release:        gcc version 3.2.1
>Organization:
>Environment:
This is a GNU/Linux system on dual i686 processors.  
>Description:
With -traditional, gcc ignores at least C_INCLUDE_PATH.  I
haven't checked the related variables to see if they work.
This has been broken at least since 3.1, but 2.95.3 works.

$ gcc -v
Reading specs from /package/misc/spf/gcc/bin/../lib/gcc-lib/i686-pc-linux-gnu/3.2.1/specs
Configured with: ../gcc-3.2.1/configure --prefix=/package/misc/spf/gcc-3.2.1-1 --with-as=/package/misc/spf/gcc-3.2.1-1/spf/as --with-ld=/package/misc/spf/gcc-3.2.1-1/spf/ld --enable-threads --enable-libgcj --disable-nls
Thread model: posix
gcc version 3.2.1
>How-To-Repeat:
$ mkdir foo

$ echo foo > foo/foo.h

$ echo '#include <foo.h>' > bar.h

$ C_INCLUDE_PATH=`pwd`/foo gcc -E bar.h 
# 1 "bar.h"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "bar.h"
# 1 "/home/prj/foo/foo.h" 1 3
foo
# 2 "bar.h" 2

$ C_INCLUDE_PATH=`pwd`/foo gcc -E -traditional bar.h 
bar.h:1: foo.h: No such file or directory
# 1 "bar.h"

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: