Correct location of 'automake'?

[Charly Avital]

When trying to compile GnuPG 2.0.1, I was told to run automake before
applying David Shaw's patch.

Whenever I tried to run automake, I got a long error message, the gist
of which was the version I was using. 1.6.3, was wrong, and that I
should use 1.9.6.

I tried to install 1.9.6 by compiling the source code. It apparently
succeeded, but automake --version still gave 1.6.3, as well as
/usr/bin/automake --version.

I have now tried 'locate automake', and it seems that I have the two
versions, 1.6.3, and 1.9.6 installed, but in different paths; following
are partial quotes of the Terminal output:

When I do:
/usr/local/bin/automake --version
I get version 1.9.6

/usr/bin/automake
/usr/bin/automake-1.6

and

/usr/local/bin/automake
/usr/local/bin/automake-1.9

Moreover I have:

/usr/share/automake-1.6
/usr/share/automake-1.6/acinstall

and

/usr/local/share/automake-1.9
/usr/local/share/automake-1.9/acinstall

So what should be the 'correct' path?

- /usr/bin/automake

or

- /usr/local/bin/automake  ?

Thanks in advance,
Charly