Re: Trace shows second argument to AC_SUBST

[Akim Demaille]

> I just tried out the new trace facility on Autoconf's own configure.in:
> $ ./autoconf --trace=AC_SUBST configure.in
> 
> and got some lines like
> 
> configure.in:8:AC_SUBST:AUTOTEST_PATH:m4_default([..], [.])
> configure.in:9:AC_SUBST:EXPR:$ac_cv_path_EXPR
> configure.in:15:AC_SUBST:M4:$ac_cv_path_M4

Which is what is expected :)  Maybe you meant --trace=AC_SUBST:'$1'.

> Where are the second arguments coming from, and btw., why is the
> m4_default call not expanded?

Because it is passed quoted.