Re: c++/5997: CPLUS_INCLUDE_PATH not working properly

[Jorgo Bakker <jbakker at rssd dot esa dot int>]

Neil Booth wrote:

> Zack Weinberg wrote:-
>
> > On Mon, Mar 18, 2002 at 06:25:00PM +0000, Neil Booth wrote:
> > >
> > > I *think* this goes back 3 years (before my time!) to your change to
> > > cppinit.c 1.5 -> 1.6.  Would you have a look at it?  We used to put
> > > the paths in the env var before the default paths.  Now we do something
> > > that is a little different I think.
> >
> > I'm not seeing any problem at all... could you please tell me what's
> > going wrong in your environment?
> >
> > ~/f $ CPLUS_INCLUDE_PATH=`pwd`/include g++ -c -H main.cc ; echo $?
> > /home/zack/f/include/foo.h
> > 0
> > ~/f $ CPLUS_INCLUDE_PATH=`pwd`/include g++-3.0 -c -H main.cc ; echo $?
> > . /home/zack/f/include/foo.h
> > 0
> > ~/f $ CPLUS_INCLUDE_PATH=`pwd`/include ~/src/gcc/b/vanilla/gcc/g++ \
> >   -B ~/src/gcc/b/vanilla/gcc/ -H -c main.cc ; echo $?
> > . /home/zack/f/include/foo.h
> > 0
>
> You're quite right - I'd not tested the PR, assuming it must be right.
> I just looked for when the last time this area of code was changed.  I
> can't reproduce it either.  jbakker, can you elaborate on what problem
> you're seeing?
>
> Neil.

Hmm, I started to doubt myself, and indeed: on Linux it works fine. However,
my sun-sparc-solaris2.[6-8] platforms all give the following output.
It seems as if CPLUS_INCLUDE_PATH is interpreted as a PATH to C-include files
only; hence the error.

Jorgo

---
$ CPLUS_INCLUDE_PATH=`pwd`/include /usr/local/devel/gcc-3.0.4/bin/g++ -v  -c
-H  main.cc
Reading specs from
/usr/local/devel/gcc-3.0.4/lib/gcc-lib/sparc-sun-solaris2.8/3.0.4/specs
Configured with: ../gcc-3.0.4-src/configure
--prefix=/usr/local/devel/gcc-3.0.4 --with-gnu-as --with-gnu-ld
--with-as=/usr/local/bin/as --with-ld=/usr/local/bin/ld
--enable-shared=libstdc++ --disable-threads
Thread model: single
gcc version 3.0.4
 /usr/local/devel/gcc-3.0.4/lib/gcc-lib/sparc-sun-solaris2.8/3.0.4/cc1plus -v
-D__GNUC__=3 -D__GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=4 -Dsparc -Dsun -Dunix
-D__svr4__ -D__SVR4 -D__sparc__ -D__sun__ -D__unix__ -D__svr4__ -D__SVR4
-D__sparc -D__sun -D__unix -Asystem=unix -Asystem=svr4 -D__NO_INLINE__
-D__STDC_HOSTED__=1 -H -D_XOPEN_SOURCE=500 -D_LARGEFILE_SOURCE=1
-D_LARGEFILE64_SOURCE=1 -D__EXTENSIONS__ -D__GCC_NEW_VARARGS__ -Acpu=sparc
-Amachine=sparc main.cc -D__GNUG__=3 -D__GXX_DEPRECATED -D__EXCEPTIONS
-D__GXX_ABI_VERSION=100 -quiet -dumpbase main.cc -version -o
/data/Users/jbakker/tmp/ccpp6A4E.s
GNU CPP version 3.0.4 (cpplib) (sparc)
GNU C++ version 3.0.4 (sparc-sun-solaris2.8)
        compiled by GNU C version 3.0.4.
ignoring nonexistent directory
"/usr/local/devel/gcc-3.0.4/sparc-sun-solaris2.8/include"
#include "..." search starts here:
#include <...> search starts here:
 /data/Users/jbakker/tmp/gcc-bug/foo/tmp/include
 /usr/local/devel/gcc-3.0.4/include/g++-v3
 /usr/local/devel/gcc-3.0.4/include/g++-v3/sparc-sun-solaris2.8
 /usr/local/devel/gcc-3.0.4/include/g++-v3/backward
 /usr/local/include
 /usr/local/devel/gcc-3.0.4/include
 /usr/local/devel/gcc-3.0.4/lib/gcc-lib/sparc-sun-solaris2.8/3.0.4/include
 /usr/include
End of search list.
. /data/Users/jbakker/tmp/gcc-bug/foo/tmp/include/foo.h
In file included from main.cc:1:
/data/Users/jbakker/tmp/gcc-bug/foo/tmp/include/foo.h:5: declaration of C
   function `void handle(float)' conflicts with
/data/Users/jbakker/tmp/gcc-bug/foo/tmp/include/foo.h:4: previous declaration
   `void handle(int)' here