libstdc++/6641: -D__USE_MALLOC doesn't link

libstdc++/6641: -D__USE_MALLOC doesn't link

[Sylvain.Pion]

>Number:         6641
>Category:       libstdc++
>Synopsis:       -D__USE_MALLOC doesn't link
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun May 12 17:16:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Sylvain Pion
>Release:        3.1 and 3.2
>Organization:
>Environment:
Reading specs from /u/zosma/0/prisme/spion/gcc/Linux_3.1/lib/gcc-lib/i686-pc-linux-gnu/3.1/specs
Configured with: /u/zosma/0/prisme/spion/gcc/gcc-3.1-branch/configure --disable-shared --enable-languages=c++ --prefix=/u/zosma/0/prisme/spion/gcc/Linux_3.1 --with-gnu-as --with-gnu-ld --with-as=/u/zosma/0/prisme/spion/gcc/Binutils/Linux/bin/as --with-ld=/u/zosma/0/prisme/spion/gcc/Binutils/Linux/bin/ld
Thread model: single
gcc version 3.1 20020509 (prerelease)
>Description:
Compiling the attached program with -D__USE_MALLOC
produces the following error at link.  It's a regression
from 3.0.

/tmp/ccRjeIw2.o: In function `std::__simple_alloc<int, std::__malloc_alloc_template<(int)0> >::allocate(unsigned)':
/tmp/ccRjeIw2.o(.gnu.linkonce.t._ZNSt14__simple_allocIiSt23__malloc_alloc_templateILi0EEE8allocateEj+0x16): undefined reference to `std::__malloc_alloc_template<(int)0>::allocate(unsigned)'
/tmp/ccRjeIw2.o: In function `std::__simple_alloc<int, std::__malloc_alloc_template<(int)0> >::deallocate(int*, unsigned)':
/tmp/ccRjeIw2.o(.gnu.linkonce.t._ZNSt14__simple_allocIiSt23__malloc_alloc_templateILi0EEE10deallocateEPij+0x1d): undefined reference to `std::__malloc_alloc_template<(int)0>::deallocate(void*, unsigned)'
collect2: ld returned 1 exit status
>How-To-Repeat:
// compile and link the following program with
// -D__USE_MALLOC
#include <memory>
#include <vector>

int main()
{
  std::vector<int> V(1);
  return 0;
}
>Fix:

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

Re: libstdc++/6641: -D__USE_MALLOC doesn't link

[ljrittle]

Synopsis: -D__USE_MALLOC doesn't link

Responsible-Changed-From-To: unassigned->ljrittle
Responsible-Changed-By: ljrittle
Responsible-Changed-When: Mon May 13 13:20:30 2002
Responsible-Changed-Why:
    My pet issue.
State-Changed-From-To: open->closed
State-Changed-By: ljrittle
State-Changed-When: Mon May 13 13:20:30 2002
State-Changed-Why:
    You are correct in that this is a change from 2.95 and
    perhaps 3.0 (the only correct use of __USE_MALLOC was
    surely documented by the 3.0 release but it is possible
    that it still "worked").
    
    The libstdc++-v3 documentation now explicitly says that
    you must rebuild the entire library to define library
    implementation macros such as __USE_MALLOC.
    
    The use of macros in the library implementation name space,
    such as __USE_MALLOC, which may change internal
    implementation can violate the one-definition rule of C++.
    
    A patch that correctly handles all one-definition issues
    with such a macro might be accepted.  However, I will be
    holding my nose.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6641