Re: Issues using autoconf or automake

[Eric Blake]

On 03/11/2014 08:56 AM, Jim Galarowicz wrote:
> 

> 
> I'm including a section of m4/ax_libmonitor.m4 where HAVE_LIBMONITOR
> code looks like this:
> 
>    52        AC_LINK_IFELSE([AC_LANG_PROGRAM([[
>     53            #include <monitor.h>
>     54            ]], [[
>     55            monitor_init_library();
>     56            ]])], [ AC_MSG_RESULT(yes)
>     57
>     58                AM_CONDITIONAL(HAVE_LIBMONITOR, true)

Wrong place.

>     59                AC_DEFINE(HAVE_LIBMONITOR, 1, [Define to 1 if you
> have libmonitor.])
>     60
>     61            ], [ AC_MSG_RESULT(no)
>     62
>     63                AM_CONDITIONAL(HAVE_LIBMONITOR, false)

Also wrong.

>     64                LIBMONITOR_CPPFLAGS=""
>     65                LIBMONITOR_LDFLAGS=""
>     66                LIBMONITOR_LIBS=""
>     67                LIBMONITOR_DIR=""
>     68
>     69            ]
>     70        )
> 

AM_CONDITIONAL is designed to be called at the top level, outside of
AC_LINK_IFELSE.  Try:


       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
            #include <monitor.h>
            ]], [[
            monitor_init_library();
            ]])], [ AC_MSG_RESULT(yes)
               AC_DEFINE(HAVE_LIBMONITOR, 1, [Define to 1 if you have
libmonitor.])
            ], [ AC_MSG_RESULT(no)
                LIBMONITOR_CPPFLAGS=""
                LIBMONITOR_LDFLAGS=""
                LIBMONITOR_LIBS=""
                LIBMONITOR_DIR=""
            ]
       )
       AM_CONDITIONAL([HAVE_LIBMONITOR], [test "$HAVE_LIBMONITOR" = 1"])

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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