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I'm trying to compile Python 3.4.1 on an emulated ARM machine (with Debian 7). ./configure gives me

checking for g++... no

but g++ is installed. So what could be the problem? I know it's not strictly needed, but I'd prefer that make will use g++ for c++ code.

Marco Sulla
  • 629

2 Answers2

18

Workaround:

CXX=/usr/bin/g++ ./configure

Anyway it's very strange and it seems to be a bug in the configure script. It seems to be a known problem. Oh well...

EDIT: It seems that --with-cxx-main is an option with a different purpose. It's required on some platforms to support C++ extension modules. I updated my answer above.

Marco Sulla
  • 629
4

You can set the location of g++ manually using an environment variable passed to configure, as described in the help:

Usage: ./configure [OPTION]... [VAR=VALUE]...

For example, if you are running configure with a custom prefix your command would be:

./configure --prefix=/home/user/.local CXX="/usr/bin/g++"
user55025
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