[Python-Dev] Why is python linked with c++? (original) (raw)

Neil Schemenauer nas-python@python.ca
Tue, 8 Jul 2003 15:22:23 -0700

Skip Montanaro wrote:

I was just doinking around with the configure script to add an --enable-profiling flag. I notice that "c++" is used to link my python.exe (this on Mac OS X):

I remember this used to be the case on Linux bug I made a change that undid it:

revision 1.199
date: 2001/01/27 21:39:17;  author: nascheme;  state: Exp;  lines: +9 -6
- Remove Guido's LINKCC=CXX experiment.
- Cygwin doesn't want CCSHARED flag when bulding the interpreter DLL.

The current configure script sets LINKCC to CXX if CXX is set. CXX gets set if you provide --with-cxx=. It looks like CXX may also get automatically set:

dnl Autoconf 2.5x does not have AC_PROG_CXX_WORKS anymore
ifdef([AC_PROG_CXX_WORKS],[],
      [AC_DEFUN([AC_PROG_CXX_WORKS],
      [AC_LANG_PUSH(C++)dnl
       _AC_COMPILER_EXEEXT
       AC_LANG_POP()
      ]
)])

if test "$check_cxx" = "yes" 
then
        AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, notfound)
        if test "$CXX" = "notfound"
        then
                CXX=
        else
                AC_PROG_CXX_WORKS
        fi
fi

You should be able to explicitly disable C++ using --without-cxx. In any case, I would say the behavior is intentional.

Neil