Re: how to use python macros together

[Warren Young]

On Apr 3, 2015, at 11:55 AM, Andy Falanga (afalanga) <address@hidden> wrote:
> 
> It just so happens that, on CentOS 6, the install of python is broken because 
> one cannot do pkg-config --cflags python.

Who said you should be able to?

I just downloaded the source tarballs for Python 2.6.6 (which is what CentOS 6 
ships) and the latest 2.7 release, which happens to be 2.7.9, and lo and 
behold, python.pc.in appeared sometime in the 2.7 series.

Thus, your command doesn’t work for Python 2.6.6 on *any* platform, unless the 
packager slipped in a custom version.

> So, to work around this, I did the following in configure.ac:
> 
> AM_PATH_PYTHON([2.6])
> 
> if test -d /usr/lib/python2.6 ; then
> #   AC_PREFIX_DEFAULT([/usr/lib/python2.6])
>   PYTHON_CPPFLAGS=-I/usr/include/python2.6
>   PYTHON_LIB=-lpython2.6
> fi

It’s always a bad idea to hard-code versions and paths.  It works until it 
doesn’t.

Instead, call python-config --cflags.

Incidentally, isn’t this an autoconf issue, rather than an automake one?  I get 
that you’re going to be making use of CFLAGS and such in your Makefile.am 
files, but the problem is cropping up before you get to that stage.