Re: AM_CONDITIONAL + AM_COND_IF does not work

[Tyler Retzlaff]

Hey,

On 3/9/2015 11:06 AM, Marc Wäckerlin wrote:
> According to the official documentation(*):
> ------------------------------------------
> Here is an example of how to define a conditional config file:
> AM_CONDITIONAL([SHELL_WRAPPER], [test "x$with_wrapper" = xtrue])
> AM_COND_IF([SHELL_WRAPPER],
>            [AC_CONFIG_FILES([wrapper:wrapper.in])])
> ------------------------------------------
>
> I try to generically find out, whether examples/makefile.am exists in 
> a project and to automatically use it, if it exists:
> ------------------------------------------
> AM_CONDITIONAL([HAVE_EXAMPLES_DIR], [test -f examples/makefile.am])
> AM_COND_IF([HAVE_EXAMPLES_DIR], [AC_CONFIG_FILES([examples/makefile])])
> ------------------------------------------
>
> But automake fails:
> ------------------------------------------
> configure.ac:27: error: required file 'examples/makefile.in' not found
> ------------------------------------------

AC_CONFIG_FILES([examples/makefile]) presumes you have 
examples/makefile.in from which to generate makefile when configure is 
run.  The error is clear, examples/makefile.in isn't found.

Did you forget generate makefile.in from makefile.am with automake? I'd 
try that first.

Tyler